Hi John, When we use a crows foot or any adapter that adds length to a torque wrench we need to take into account the added length. By using the adapter it adds length to the wrench, torque is a rotational force at a given radius. If the distance increases the torque will also increase. We can compensate for this is two ways, first by calculating the torque value the wrench should be set to and lowering the setting. This calculation takes into account the length of the wrench, length of adapter, amount of torque desired, and the angle of the adapter relative to the handle. The MUCH easier way is to put the adapter at a 90 degree angle relative to the wrench handle. This will cancel out the additional length because in the formula the force multiplier is the Cosine of the angle. The Cosine of 90 degrees is Zero, so it cancels out the added length. Nice video on the effect of helix angle. Often over looked by home machinists. Check out variable angle helix tools, opens up a new realm for sure. Thanks for your videos, Tim
I came here to say exactly this. Except note that if you keep it at 180, then the torque applied is actually a function of where you are holding the torque wrench, not the length of the wrench. So you could get different results with the same tool and different operator! Much better practice to use a crows foot at 90deg as you mentioned.
And this is why I am subscribed to your channel. Don't do ANYTHING with CNC. But what you teach, how you do it, and the excitement you're able to express and pass on to your viewer, over what your video is of; is just on point, every video. I love learning stuff that I will never use, and this is one of my favorites. You are an original youtuber in my eyes. Keep up the good work and keep these videos going FOREVER!
I use Helical EM's and really like them. The Milling Advisor has burned me a few times with errors in the recommended feeds and speeds. The result is I have trashed some new end mills on the first millisecond of cutting so be a little cautious. Milling Advisor is a work in progress as they figure out the mistakes so maybe start less aggressive and move up to where you are comfortable. Newer releases seem to fix the bugs, but my broken EM's paid the price. If you are trying to max out MRR, buy at least 1 additional extra EM to destroy when you hit the limit or blindly trust the Advisor as I have done. The 1/2" EM's of similar helix and coating give a great surface finish with more aggressive capabilities over the 3/8". With a 10k spindle you can run a full D slot at 200+ ipm, but a great .005" radial and axial finish cut at 80 ipm gives a really nice surface finish. Faster is okay, but you see more artifacts of going faster. With 15k you can go 120 ipm to get the same finish. High Efficiency roughing can go much faster. I would go with a .005" bottom finish minimum if you are really aggressive with HE roughing. The advanced carbide is great, but it still deflects so a .001" bottom finish cut you listed may not clean up the roughing deflection variations on the floor. With a .005" axial and radial finish cut you will have such a nice finish it will look just as good as your .001" keep off the bottom. Try it, you will be happy with the result.
Wow, I can't believe your just now starting to use 45° helix endmills for aluminum! Welcome to the club John! The reduced shear force of a 45° tool makes a much quieter and better finish cut than a lesser degree of helical angle.
Hi John, Keep the videos coming. Im glad to see your using the Helical's E.M. you will not find a better Alu geometry end mill and the ZrN coating will not let alu bulid up or stick to the flutes its the best coating and the high positive rake makes a mirror finish. I have been using Helical for almost 7 years and have not found anything better for Alu. Keep up the good work.
You beat me to it! I agree that cutter edge-sharpness is key, and that an un-coated tool is needed to achieve good finishes in Aluminium. I would add that, for carbide inserts, the un-coated 'G' ground-finish inserts (not the 'M' molded ones) will give you a beautiful mirror finish.
Thanks John, it’s such a pleasure to see you growing as a business, a machinist and an individual. I wish you just as much success for 2018. On the other hand, in my opinion I hope that’s the last we’ll see/hear of the cheesy sound effects with the keystrokes and the hokey music. It reminded me of a toothpaste commercial! The recipe for future success probably looks very similar to the recipe for past success ;)
John will you do a video that shows how you decided on the digital microscope? I respect how you research to find the “best value” in a product before purchasing. I really think I need to get one. I love the little jewelers lupes that you had at the Fusion classes I took. I went back to work and bought 10 of them so I could have one at every workstation and in each tooling cabinet.
Quick bit of advice about that hydrometer. Hold it level to the floor when checking it. If you angle it the fluid can move to the rear and distort your reading on the scale.
Happy New Year John. I hope you continue to do what you do in 2018. I love your commitment. You are a good positive energy and a fantastic person. Thanks buddy !!!!
John, the sidewall quality of those cubes is hard to evaluate in the video, even at highest resolution. For future tests, it would be great if you could blend in some photos or, even better, still shots with a ruler or pencil being reflected by the sidewalls!
Nice cutting trial. There are lots of good USA brands now. Even though the price per end mill may be higher; the tools have more value in terms of bang for the buck ( accounting for performance improvements ). I give Helical another vote along with Destiny and IMCO. The next step is to compare tool holding: ER40, Shrink and Hydraulic ( with and without sleeves ). I have used various Mill Chucks and Weldon Syle on Haas 40 taper, but both always seem " chattery ". Thanks for doing all these test cuts. Have you thought of using Autodesk's higher end Powermill or Featurecam Software?
Helical makes good tooling. Our tool rep brought a couple by and I've been using them lately. Comparable to Fraisa in surface finish. Runout on the tool diameter on our sample was about a tenth which is about what Fraisa is and really really good. Not as fast as Gorilla Mill for roughing so we use two solutions for seperate rough/finish but really good quality of tooling from Helical in my experience so far.
I use 55 degree helix 3 flute carbide for machining 6082T6 and 7074T6..I've found a big variance in the finish with these tools. Using the same feeds and speeds and two new identical tools of the same make one finish will leave bands and the other is mint..I've decided that it's the grind on the tool not being perfect from new. It seems one tool will push off more than the other. But of course once it's used it's hard to take it back for a refund. I think I need a shadow graph to really check them before I use them.
Something that helps me to fine tune programs is during cuts with a lot of harmonic resonance, I put my body against the machine and adjust speeds and feeds at the control to help figure out what the machine likes.
Wake up guys... the "error" in the measurement you're all referring to is less than one *ten thousandth* of an inch! Plus, most of your crappy tools couldn't measure to the accuracy of his height gage. So yes, I'd call that good... VERY good! Well done John.
i am just saying that this is not the way to go, maybe he was lucky this time but next time he could be off 0.002 inch or more. Also maybe the machine didnt machine 0.969938 but more or less and he is thinking the machine machined it to that dimension. Maybe a Micrometer is better
Nice video! I love these tool videos! I'd love to see you try Destiny Tool diamond back and viper. They're expensive but I've never found another brand with tool life and MMR that come anywhere close. It's all I'll run in my machines for aluminum. For stainless Guhring is probably untouchable. Just mind blowing.
Helical is about on par with Destiny. In fact I’ve used the Helical speed and feed widget there with Destiny endmills and works perfectly. I find the Helical to be able to take heavier cuts, but the Destiny is more stable with slightly less chatter.
I used to use destiny tool, i loved the diamond back rougher, but then I found the yg1 speed freak, its powdered metal too. It cuts faster than diamond back which is carbide
How about including a Brady bunch type window of the different finishing ops results for comparison? Not sure who you get your aluminum from but various suppliers metals will machine up differently despite being the same specs. That is a wholenother can of worms but it does actually make a difference.
Yea, I agree. These tools look great but are impossible to actually buy if your local shop doesn't carry them, and then the chances of them having the exact tool you want are slim... maybe they'll order it for you. Of the 6-8 places that sell them in Texas, only like two even have a web site.
John if you want the best finish posible on the walls of a part use DATA-FLUTE endmills they are the best by far. I am talking with 20 years experience on making high quality parts. I achieved mirror like finish on my parts.
I would love if Helical had and API Plug in for Fusion or HSM. Do you mind sharing the link for the Bowing article you mentioned. The videos keep getting better and better!
John, are you using the G187 precision control command? On our VF3’s it makes a HUGE difference to actually hit the programmed feed rates on the HEM strategy toolpaths. It’s pretty important on the haas machines - all other machines as well. But the HAAS control doesn’t seem to actually display a corrected feed rate based on geometry and feed rate.
Hi John, at 7:30, did you weld the ER wrench to a 1/2 end so it can attach to the torque wrench, or is there a 1/2 drive to 14x18 adapter available? All the ER wrench are 14x18 and I don't really want to buy another torque wrench with 14x18 head just to use it. Thanks!
Looks like from the microscope clip the part was not cleaned up on either the side resting against the surface plate or the granite square. Even if measuring the distance across the bosses, a few millionths could come from those surfaces being as expected w.r.t. the surface plate or the square. But I might have missed the important bit. Amazing that a height gage can measure to individual millionths, but the accuracy is .000043 + (.000024 x L*/24)in from the specs? Happy New Year!
Nice. Love this video. I've been using the Helical tool advisor for a while. But at the new shop i'm at they only like buying Accupro so I'm sad I can't use the advisor anymore.. little by little I while have the changed though lol
great video, but did I miss something? you said there would be 9 different feed rates to compare but only pointed out the one, was there any difference from the cut rate?
Great video John! Have you ever talked to Titan about his Imco tools that they use? He’s seems like he’s running the shit out of his machines and tools, but they seem to work. ( for now anyways)
I've used a crowfoot adapter on my torque wrench for er16 collets for years. Where did you get that adapter for er32? Looks handy. Better than the hand filed square hole i put in my er32 wrench that i almost never use because its not just there on the torque wrench.
I noticed that too... A good setup would have sequential tool changes. Like start with tool 1 and end with tool 10 in that order. That would negate the sluggish tool change.
He probably slowed it down to go easy on the Renishaw probe. It doesn't matter if the tools are in the side mount changer sequentially because if you look in the G-code HSM outputs, after a tool is loaded for a toolpath it calls up what the next tool will be and the tool changer will rotate to put it in position - I am most familiar with HAAS but I believe thats how most high volume tool changers work as well
I think it was the same 4140 video when the endmill snapped and the stock came out of the vise that you said er collets are no good but you are using them here. Has your opinion changed?
You could make a new video about speed and feed and how they affect factors like ROC, all explained with formulas, is that I try to get your speed data and feed with common formulas, but I don't know how ROC affects it, Greetings and Success
You do know that that ER collet adapter sticking out the front of that torque wrench is changing the moment arm of the wrench, and tossing the wrench calibration out the window? You probably had more like 90 or 95 ft/lb of torque with that extra 3 inches on the wrench length, if you didn't calculate a correction factor for the wrench setting. Either crank it 90 degrees or calculate a correction factor.
Hi John, Have you heard of PCT cutters? They are awesome! I've used Helical before and PCT surpasses them, talk to Louie Covarribias. You'd be able to run that tool at 400IPM no problem.
Do you want a great surface finish...or do you want a surface finish that LOOKS great? They aren't always the same thing. I recently did a part in 6061 that had a surface finish callout of
This is interesting, because I was told that some surface marks are not actually physical marks in the metal, they actually reflect light differently because the structure of the metal has changed, I was told it was a slight difference in density.
John you chose well I love this manufacturer however when I was in california I used a supplier that was incompetent who do you order from I am in Indiana now so I am not to far from you I think you are in Ohio...
Why did you not give us the data of what the RA was on each of the passes? Claim to be informative, but now, I have to run the same test.... What the heck man??? Try sharing data rather than teasing...
It's called trying things and not getting stuck in your ways. Especially in machining, if you don't try new things and search for faster, better results, you are going to fail as a business.
Fusion 360 Adaptive does NOT qualify as a "high performance CAM system that intelligently manages tool load in corners." This is a feature I have requested from them (see forums.autodesk.com/t5/fusion-360-ideastation-request-a/variable-feed-optimization-based-on-outside-inside-arc-velocity/idi-p/6771930) but they are yet to deliver. MasterCAM 2018 has it, for contours, at least. Their adaptive pathing only automatically equalizes load relative to the center of the cutting tool. While there is a "feed optimization" option under the Passes tab, this is NOT an "intelligent" feature, but rather a way for you to force the cutting speed to decrease to a secondary speed on inside corners or a certain direction change cutoff. A CAM that actually intelligently manages inside corners will do this automatically and will programatically change the speed in any inside (or outside, by increasing) corner relative to the actual change in load brought on by the true velocity of motion where the cutting tool is making contact with the material. i.e. the speed change will vary based on the directional change, not be a simple on/off speed reduction at a certain threshold.
No. 1 click. And 1 click only. Additional clicks add additional torque and extra load to the nut and increases the amount of stretch. Just one click. It’s how those wrenches were designed to work.
Additional clicks don't add more torque. The torque will not change based on how many times you click it, but the position can, due to hysteretic friction and yielding or creep of the peaks in the mating surfaces of your fasteners (which decreases the clamping force). The speed at which you move the torque wrench will affect how many clicks it takes for you to get to a consistent position where repeated clicks no longer move the fastener. In short, other than torque-to-yield bolts (which definitely should only be clicked once!), it does not matter how many times your torque wrench clicks before the fastener stops moving. That's why people click it twice - if the bolt continues moving after the first click, it's because clamping force (and therefore friction) decreased due to that hysteresis. However, also worth noting that unless you're torquing on a highly elastic material (eg applying a nut to torque against a spring) or at/very close to yield of one of the materials, we are well beyond splitting hairs here given the tolerances of calibration of torque wrenches and the fact that torque specs invariably have a tolerance on them too. Torquing anything in tool steel... click it once or 100 times, it won't matter in practice.
Hi John, When we use a crows foot or any adapter that adds length to a torque wrench we need to take into account the added length. By using the adapter it adds length to the wrench, torque is a rotational force at a given radius. If the distance increases the torque will also increase. We can compensate for this is two ways, first by calculating the torque value the wrench should be set to and lowering the setting. This calculation takes into account the length of the wrench, length of adapter, amount of torque desired, and the angle of the adapter relative to the handle. The MUCH easier way is to put the adapter at a 90 degree angle relative to the wrench handle. This will cancel out the additional length because in the formula the force multiplier is the Cosine of the angle. The Cosine of 90 degrees is Zero, so it cancels out the added length. Nice video on the effect of helix angle. Often over looked by home machinists. Check out variable angle helix tools, opens up a new realm for sure. Thanks for your videos, Tim
I came here to say exactly this. Except note that if you keep it at 180, then the torque applied is actually a function of where you are holding the torque wrench, not the length of the wrench. So you could get different results with the same tool and different operator! Much better practice to use a crows foot at 90deg as you mentioned.
And this is why I am subscribed to your channel. Don't do ANYTHING with CNC. But what you teach, how you do it, and the excitement you're able to express and pass on to your viewer, over what your video is of; is just on point, every video. I love learning stuff that I will never use, and this is one of my favorites. You are an original youtuber in my eyes. Keep up the good work and keep these videos going FOREVER!
Helical is a great company and they make amazing tools for sure. Easily the longest lasting tools I have ever used.
I use Helical EM's and really like them. The Milling Advisor has burned me a few times with errors in the recommended feeds and speeds. The result is I have trashed some new end mills on the first millisecond of cutting so be a little cautious. Milling Advisor is a work in progress as they figure out the mistakes so maybe start less aggressive and move up to where you are comfortable. Newer releases seem to fix the bugs, but my broken EM's paid the price. If you are trying to max out MRR, buy at least 1 additional extra EM to destroy when you hit the limit or blindly trust the Advisor as I have done.
The 1/2" EM's of similar helix and coating give a great surface finish with more aggressive capabilities over the 3/8". With a 10k spindle you can run a full D slot at 200+ ipm, but a great .005" radial and axial finish cut at 80 ipm gives a really nice surface finish. Faster is okay, but you see more artifacts of going faster. With 15k you can go 120 ipm to get the same finish. High Efficiency roughing can go much faster. I would go with a .005" bottom finish minimum if you are really aggressive with HE roughing. The advanced carbide is great, but it still deflects so a .001" bottom finish cut you listed may not clean up the roughing deflection variations on the floor. With a .005" axial and radial finish cut you will have such a nice finish it will look just as good as your .001" keep off the bottom. Try it, you will be happy with the result.
Unbelievable!... how fast is that!....cutting like a champ...nice.
As a CNC amateur with a hobby grade machine, I'm looking forward to anything you have to say about dry cutting aluminum.
Wow, I can't believe your just now starting to use 45° helix endmills for aluminum! Welcome to the club John! The reduced shear force of a 45° tool makes a much quieter and better finish cut than a lesser degree of helical angle.
Hi John, Keep the videos coming. Im glad to see your using the Helical's E.M. you will not find a better Alu geometry end mill and the ZrN coating will not let alu bulid up or stick to the flutes its the best coating and the high positive rake makes a mirror finish. I have been using Helical for almost 7 years and have not found anything better for Alu. Keep up the good work.
Those new mills are pretty wild! Happy new year John, I hope you and yours have a good one.
We use these on running flash suppressors and muzzle brakes. Plunge straight down and slot. Edp 31152. Awesome.
If you want a shinier finish try an un-coated tool, variable flute endmills help too.
This is the ticket. Any coating will blunt the cutting edge significantly.
You beat me to it! I agree that cutter edge-sharpness is key, and that an un-coated tool is needed to achieve good finishes in Aluminium.
I would add that, for carbide inserts, the un-coated 'G' ground-finish inserts (not the 'M' molded ones) will give you a beautiful mirror finish.
Thanks John, it’s such a pleasure to see you growing as a business, a machinist and an individual. I wish you just as much success for 2018.
On the other hand, in my opinion I hope that’s the last we’ll see/hear of the cheesy sound effects with the keystrokes and the hokey music. It reminded me of a toothpaste commercial! The recipe for future success probably looks very similar to the recipe for past success ;)
I love Helical Solutions. I use them all the time!
Helical is one of the best.
I’d place them at the top 5 best high performance endmills. Along with Destiny, Emuge, Guhring and OSG
sandvik?
John will you do a video that shows how you decided on the digital microscope? I respect how you research to find the “best value” in a product before purchasing. I really think I need to get one. I love the little jewelers lupes that you had at the Fusion classes I took. I went back to work and bought 10 of them so I could have one at every workstation and in each tooling cabinet.
Quick bit of advice about that hydrometer. Hold it level to the floor when checking it. If you angle it the fluid can move to the rear and distort your reading on the scale.
Happy New Year John. I hope you continue to do what you do in 2018. I love your commitment. You are a good positive energy and a fantastic person. Thanks buddy !!!!
John, the sidewall quality of those cubes is hard to evaluate in the video, even at highest resolution. For future tests, it would be great if you could blend in some photos or, even better, still shots with a ruler or pencil being reflected by the sidewalls!
Best channel on youtube! Happy new year John! Keep up the awesome work
I use helical or adaptive milling only for steel. For shallow aluminium parts i like to save time
Awesome Video John! Keep up the great work. We're all learning with you! A+++
Nice cutting trial. There are lots of good USA brands now. Even though the price per end mill may be higher; the tools have more value in terms of bang for the buck ( accounting for performance improvements ). I give Helical another vote along with Destiny and IMCO.
The next step is to compare tool holding: ER40, Shrink and Hydraulic ( with and without sleeves ). I have used various Mill Chucks and Weldon Syle on Haas 40 taper, but both always seem " chattery ". Thanks for doing all these test cuts. Have you thought of using Autodesk's higher end Powermill or Featurecam Software?
Helical makes good tooling. Our tool rep brought a couple by and I've been using them lately. Comparable to Fraisa in surface finish. Runout on the tool diameter on our sample was about a tenth which is about what Fraisa is and really really good. Not as fast as Gorilla Mill for roughing so we use two solutions for seperate rough/finish but really good quality of tooling from Helical in my experience so far.
I use 55 degree helix 3 flute carbide for machining 6082T6 and 7074T6..I've found a big variance in the finish with these tools. Using the same feeds and speeds and two new identical tools of the same make one finish will leave bands and the other is mint..I've decided that it's the grind on the tool not being perfect from new. It seems one tool will push off more than the other. But of course once it's used it's hard to take it back for a refund. I think I need a shadow graph to really check them before I use them.
For a really good finish in alum, you can use a spray bottle with kerosene and lightly spray the part then run it with the coolant off,
Something that helps me to fine tune programs is during cuts with a lot of harmonic resonance, I put my body against the machine and adjust speeds and feeds at the control to help figure out what the machine likes.
I’ve done that for years it really works!
12:55 you cannot lay the part on a non datum side (if the lower side is not a datum side) and "call it good", it might be at a slight angle
Was noticing the same problem. It's a non machined surface you set on the surface plate. AVE would say your measurement is gaaabage! 😉
normally this is a no go, at least where i work :)
Protip: Don't take machining advice from this channel
Wake up guys... the "error" in the measurement you're all referring to is less than one *ten thousandth* of an inch! Plus, most of your crappy tools couldn't measure to the accuracy of his height gage. So yes, I'd call that good... VERY good! Well done John.
i am just saying that this is not the way to go, maybe he was lucky this time but next time he could be off 0.002 inch or more. Also maybe the machine didnt machine 0.969938 but more or less and he is thinking the machine machined it to that dimension. Maybe a Micrometer is better
Nice video! I love these tool videos! I'd love to see you try Destiny Tool diamond back and viper. They're expensive but I've never found another brand with tool life and MMR that come anywhere close. It's all I'll run in my machines for aluminum. For stainless Guhring is probably untouchable. Just mind blowing.
This! They leave such a nice finish on the floor, and insane MRR, Destiny viper really is the best I've found too for aluminum.
Helical is about on par with Destiny.
In fact I’ve used the Helical speed and feed widget there with Destiny endmills and works perfectly.
I find the Helical to be able to take heavier cuts, but the Destiny is more stable with slightly less chatter.
I used to use destiny tool, i loved the diamond back rougher, but then I found the yg1 speed freak, its powdered metal too. It cuts faster than diamond back which is carbide
How about including a Brady bunch type window of the different finishing ops results for comparison? Not sure who you get your aluminum from but various suppliers metals will machine up differently despite being the same specs. That is a wholenother can of worms but it does actually make a difference.
Very informative video! Keep em coming!!
UPDATE: Helical tool needs to start online sales. The distributor model is old skool.
Yea, I agree. These tools look great but are impossible to actually buy if your local shop doesn't carry them, and then the chances of them having the exact tool you want are slim... maybe they'll order it for you. Of the 6-8 places that sell them in Texas, only like two even have a web site.
John if you want the best finish posible on the walls of a part use DATA-FLUTE endmills they are the best by far. I am talking with 20 years experience on making high quality parts. I achieved mirror like finish on my parts.
Great video! Did you ever do video on dry aluminum machining, using only oil mist?
I would love if Helical had and API Plug in for Fusion or HSM. Do you mind sharing the link for the Bowing article you mentioned. The videos keep getting better and better!
John, are you using the G187 precision control command? On our VF3’s it makes a HUGE difference to actually hit the programmed feed rates on the HEM strategy toolpaths. It’s pretty important on the haas machines - all other machines as well. But the HAAS control doesn’t seem to actually display a corrected feed rate based on geometry and feed rate.
Hi John, at 7:30, did you weld the ER wrench to a 1/2 end so it can attach to the torque wrench, or is there a 1/2 drive to 14x18 adapter available? All the ER wrench are 14x18 and I don't really want to buy another torque wrench with 14x18 head just to use it. Thanks!
Looks like from the microscope clip the part was not cleaned up on either the side resting against the surface plate or the granite square. Even if measuring the distance across the bosses, a few millionths could come from those surfaces being as expected w.r.t. the surface plate or the square. But I might have missed the important bit. Amazing that a height gage can measure to individual millionths, but the accuracy is .000043 + (.000024 x L*/24)in from the specs? Happy New Year!
Great video. Happy New Year.
Nice. Love this video. I've been using the Helical tool advisor for a while. But at the new shop i'm at they only like buying Accupro so I'm sad I can't use the advisor anymore.. little by little I while have the changed though lol
I wonder how long your haas spindle will last running at max like that?
Very informative video.==========COOL
great video, but did I miss something? you said there would be 9 different feed rates to compare but only pointed out the one, was there any difference from the cut rate?
If you want a mirror finish try skicarb end mills
Great video John! Have you ever talked to Titan about his Imco tools that they use? He’s seems like he’s running the shit out of his machines and tools, but they seem to work. ( for now anyways)
I've used a crowfoot adapter on my torque wrench for er16 collets for years. Where did you get that adapter for er32? Looks handy. Better than the hand filed square hole i put in my er32 wrench that i almost never use because its not just there on the torque wrench.
Great vid.
Why is your new Haas side mount tool changer carousel so slow? Id complain to haas.
Cheers
I noticed that too... A good setup would have sequential tool changes. Like start with tool 1 and end with tool 10 in that order. That would negate the sluggish tool change.
He probably slowed it down to go easy on the Renishaw probe. It doesn't matter if the tools are in the side mount changer sequentially because if you look in the G-code HSM outputs, after a tool is loaded for a toolpath it calls up what the next tool will be and the tool changer will rotate to put it in position - I am most familiar with HAAS but I believe thats how most high volume tool changers work as well
I think it was the same 4140 video when the endmill snapped and the stock came out of the vise that you said er collets are no good but you are using them here. Has your opinion changed?
That Mitutoyo is a beautiful price of equipment
The adapter on that torque wrench should be at 45 degrees to the head of the wrench to ensure proper torque!
You could make a new video about speed and feed and how they affect factors like ROC, all explained with formulas, is that I try to get your speed data and feed with common formulas, but I don't know how ROC affects it, Greetings and Success
Hi John, what torque setting do you use for the Orange Vice and is it the same for the Tormach vice ?
You do know that that ER collet adapter sticking out the front of that torque wrench is changing the moment arm of the wrench, and tossing the wrench calibration out the window? You probably had more like 90 or 95 ft/lb of torque with that extra 3 inches on the wrench length, if you didn't calculate a correction factor for the wrench setting. Either crank it 90 degrees or calculate a correction factor.
l wilton
ER 32 collet nuts have a torque spec of 100ft lbs. he set the wrench to 85. So yes, he did account for the additional length of the adapter.
Chamfer, always before finishing.!
Hi John,
Have you heard of PCT cutters? They are awesome! I've used Helical before and PCT surpasses them, talk to Louie Covarribias. You'd be able to run that tool at 400IPM no problem.
so what you are saying is helical for my tormach 440 im getting soon.....
yay on dry cutting aluminium
who is your supplier for Helical? ive used them in th epast and love them but none of my normal suppliers deal with them.
Hi John, Where can I buy these from?
Hi John, do you know of an online distributer for helical?
john can you output your files in dxf or dwg format
you can actually buy Helical tools from DBC industrial
Why did the 4140 cut fail?
Wish they would sell here in the Netherlands
helical endmills have been around a long time
who is rocking the Labatt toque!?
0.005 finish pass.
Yg1 hpc by far
Do you want a great surface finish...or do you want a surface finish that LOOKS great? They aren't always the same thing. I recently did a part in 6061 that had a surface finish callout of
This is interesting, because I was told that some surface marks are not actually physical marks in the metal, they actually reflect light differently because the structure of the metal has changed, I was told it was a slight difference in density.
the way light reflects off of surfaces is directly tied to the geometry of the surface as far as i know
John you chose well I love this manufacturer however when I was in california I used a supplier that was incompetent who do you order from I am in Indiana now so I am not to far from you I think you are in Ohio...
Who else heard the music start at 8:48, thought it would be "eye of the tiger", then was disappointed at 8:55
Just like a white winged dove. Sings a song. Sounds like she's singing.
Cold War
Theese cutters have been around for at least 15 years. Nothing new.
Why did you not give us the data of what the RA was on each of the passes? Claim to be informative, but now, I have to run the same test.... What the heck man??? Try sharing data rather than teasing...
you could have gone dry for a sec or two..... i will only gave NYC CNC like if you snap something
Cold war
And to the next commercial. What happened to great Lakeshore Carbide? Helical paid more?
It's called trying things and not getting stuck in your ways. Especially in machining, if you don't try new things and search for faster, better results, you are going to fail as a business.
Fusion 360 Adaptive does NOT qualify as a "high performance CAM system that intelligently manages tool load in corners."
This is a feature I have requested from them (see forums.autodesk.com/t5/fusion-360-ideastation-request-a/variable-feed-optimization-based-on-outside-inside-arc-velocity/idi-p/6771930) but they are yet to deliver. MasterCAM 2018 has it, for contours, at least.
Their adaptive pathing only automatically equalizes load relative to the center of the cutting tool. While there is a "feed optimization" option under the Passes tab, this is NOT an "intelligent" feature, but rather a way for you to force the cutting speed to decrease to a secondary speed on inside corners or a certain direction change cutoff. A CAM that actually intelligently manages inside corners will do this automatically and will programatically change the speed in any inside (or outside, by increasing) corner relative to the actual change in load brought on by the true velocity of motion where the cutting tool is making contact with the material. i.e. the speed change will vary based on the directional change, not be a simple on/off speed reduction at a certain threshold.
You should always "click" with a torque wrench 2 times.
Abom clicks 3 times!
No. 1 click. And 1 click only.
Additional clicks add additional torque and extra load to the nut and increases the amount of stretch.
Just one click. It’s how those wrenches were designed to work.
Additional clicks don't add more torque. The torque will not change based on how many times you click it, but the position can, due to hysteretic friction and yielding or creep of the peaks in the mating surfaces of your fasteners (which decreases the clamping force). The speed at which you move the torque wrench will affect how many clicks it takes for you to get to a consistent position where repeated clicks no longer move the fastener. In short, other than torque-to-yield bolts (which definitely should only be clicked once!), it does not matter how many times your torque wrench clicks before the fastener stops moving. That's why people click it twice - if the bolt continues moving after the first click, it's because clamping force (and therefore friction) decreased due to that hysteresis.
However, also worth noting that unless you're torquing on a highly elastic material (eg applying a nut to torque against a spring) or at/very close to yield of one of the materials, we are well beyond splitting hairs here given the tolerances of calibration of torque wrenches and the fact that torque specs invariably have a tolerance on them too. Torquing anything in tool steel... click it once or 100 times, it won't matter in practice.
You make too many videos. I am going to unsubscribe if i get overwhelmed with notitications.
Paul Sheer Have fun
Paul Sheer There's no such thing as too many Saunders videos.
Paul - you can adjust notification frequencies (or turn them off!)
Paul Sheer Turn off notifications
NYC CNC Yeah, but i like channels where i watch every video. Then i get the full context. Maybe thats just me.