I missed this video James. I love that tool holder. I've never seen one before you videos. A tool but will last forever in that position. Good demonstration on surface speeds, also the demos on turning and facing the different materials. Thanks for sharing that with us. I will say that I'm still partial to my chip breaker tools though....:) Thanks James. Adam
Hey James, Great Part 2 Diamond Tool Holder demo! Great point you added about the quality of the HSS Bit, it does make a big difference! Thanks for sharing! Ray
I sure am going to locate one of these in the near future. Thanks for all the information. Looks like that big fan in the background would of been handy to keep you, Adam and Gil cool when moving out that mill! Jack
James I think you need to adjust Gibb(s) or the feed screw on the cross slide from the pattern that shows up on the facing cuts. Check that out it should be cutting just fine I cut an mt2 arbor small end with carbide at a slow rmp and feedrate. Manny
I'm a little late to the party here but the pattern on the facing cuts appears to present itself in the same interval and location as the WD40 application. I've noticed this effect on my lathe as well when cutting aluminum.
Hi James, your close up of the tool (about 4m-35s) showing bluing also shows why the supplied grinding jig is less than optimal. The striations are running parallel to the cutting edge and therefore cannot be sharp as the edge is rounded by the stones grit. A vee shaped jig, used at right angles to the stone, allows a sharper edge on both cutting edges as striations meet the edge at an angle, rather just one of them. If you are worried about the top ending up hollow ground, don't be, it helps. The above opinion is the result of much testing and use. ATB chris
I have wondered about that at times. Often I will hone the surface really smooth, mirror like, before a long turning session so maybe that helps. I will give your suggestion a try, thanks.
I have tried honing after grinding and it did not help, I even sharpened it with a diamond wheel, lovely looking mirror like flat tool but it did not cut as well a straight off the grinder, hollow ground one..I think the the saw edge helps make a clean cut. The tools I make have built in 12degree front and side clearances and the HSS is ground at 30 How much radius do you put on the cutting corner as that can effect things?
Rick Brandt I have yet to try ginding a chip breaker for the Diamond tool holder, but I have seen examples. That may help with the "Stringy chip death trap" problem.
There are two shop cats, the older larger cat is Jackpot, and the smaller one was named Copy Cat cause she looked just like Jackpot. I say was because I just gave her to a friend who lost his older cat and was needing a new friend. Jackpot never did get over the idea of having to share the space with another cat.
Hi James, Personally I would not have tried this setup, happy you did, if I get my hands on one of these tools, I know what to expect, a versatile and efficient tool. Thanks for sharing, Pierre
Just picked up a used diamond tool holder for 1/4" square bits, The guy didn't have the sharpening jig, can anyone give me the correct angles to build one.
One of my mentors when I was a heavy truck tech always used gojo hand cleaner when tapping holes in aluminum. I have never tried it myself but it always seem to work well for him. I don't know if that was just the best thing he always had on hand or if there was something more there?? Just thought of that when you were talking about lubes for cutting aluminum and thought I'd share.
I love my Aussie made diamond tool holders and have even used old (broken) drill bits in it for finishing. The round tool give a very nice finish snd is great for radius turning. I also very much like their parting tool. The T section running inverted makes parting, particularly on less ridge machine a breeze.
+James Kilroy Here you go. eccentricengineering.com.au/index.php?option=com_content&view=article&id=31&Itemid=45 I know the idea of inverted parting in reverse is not new, i have sen parting tools setup on the rear of the cross slide for that purpose. This tool is easily sharpened, and I find works very well. Love your videos please keep up the great production.
James I have the same tool holder and use it all the time I love it but I don't use HSS in mine I use Crobalt. Give it a shot you will notice a big diff all around. Great video James I enjoyed it..
If a Cronut is a croissant combined with a doughnut. A Crobalt must be a croissant made in Baltimore. It don't see how that's going to help. Sorry volcom, just having a little fun with your typo :) Good show as always James, thanks for sharing.
Matt I take it you don't have a machine shop? Crobalt has been manufactured in the USA since the 1920s and is a cast alloy made from 50% Cobalt, with the other 50% being Tungsten, Chromium, their carbides and some other additives. It's stronger than HSS but withstand much higher temps and holds a cutting edge longer witch saves time at the grinder.. In a machine shop time is money and I would rather be making money than sharpening and honing HSS but that don't mean HSS don't have it's place just as carbide and ceramics..
Ian Craig There is no reason to demo a cutter like this with a material that 99% of people are never going to cut on their machines. I could have cut Inconel, Waspalloy, and Titanium to, but guess what, 99.9% of the people that purchase a cutter like this are never, ever going to cut those materials. Guess what they will cut? Aluminum and steel.
I missed this video James. I love that tool holder. I've never seen one before you videos. A tool but will last forever in that position.
Good demonstration on surface speeds, also the demos on turning and facing the different materials. Thanks for sharing that with us.
I will say that I'm still partial to my chip breaker tools though....:)
Thanks James.
Adam
Hey James,
Great Part 2 Diamond Tool Holder demo! Great point you added about the quality of the HSS Bit, it does make a big difference!
Thanks for sharing!
Ray
I sure am going to locate one of these in the near future. Thanks for all the information.
Looks like that big fan in the background would of been handy to keep you, Adam and Gil cool when moving out that mill!
Jack
Nice technical video. I enjoyed seeing this different style of tool perform.
Great demo and thanks for sharing with us.
I enjoyed the video. Looking forward to the next one. :-)
James I think you need to adjust Gibb(s) or the feed screw on the cross slide from the pattern that shows up on the facing cuts. Check that out it should be cutting just fine
I cut an mt2 arbor small end with carbide at a slow rmp and feedrate.
Manny
I'm a little late to the party here but the pattern on the facing cuts appears to present itself in the same interval and location as the WD40 application. I've noticed this effect on my lathe as well when cutting aluminum.
Hi James, your close up of the tool (about 4m-35s) showing bluing also shows why the supplied grinding jig is less than optimal. The striations are running parallel to the cutting edge and therefore cannot be sharp as the edge is rounded by the stones grit. A vee shaped jig, used at right angles to the stone, allows a sharper edge on both cutting edges as striations meet the edge at an angle, rather just one of them. If you are worried about the top ending up hollow ground, don't be, it helps. The above opinion is the result of much testing and use.
ATB
chris
I have wondered about that at times. Often I will hone the surface really smooth, mirror like, before a long turning session so maybe that helps. I will give your suggestion a try, thanks.
I have tried honing after grinding and it did not help, I even sharpened it with a diamond wheel, lovely looking mirror like flat tool but it did not cut as well a straight off the grinder, hollow ground one..I think the the saw edge helps make a clean cut.
The tools I make have built in 12degree front and side clearances and the HSS is ground at 30
How much radius do you put on the cutting corner as that can effect things?
Good demo,with different materials.Like my Diamond holders for finishing work,just don't have room big stringy chips when hogging.
Rick Brandt I have yet to try ginding a chip breaker for the Diamond tool holder, but I have seen examples. That may help with the "Stringy chip death trap" problem.
+James Kilroy you can just score it like how broaches have scores on the teeth
Good series, I have been looking at these tool holders. How much threading have you done with them?
I have done a little threading with it, works really well. I keep one holder setup just for threading.
Hey Manny thanks for the tip, I am going to spend some time on that and get back with the results.
what's the shop cat's name?
There are two shop cats, the older larger cat is Jackpot, and the smaller one was named Copy Cat cause she looked just like Jackpot. I say was because I just gave her to a friend who lost his older cat and was needing a new friend. Jackpot never did get over the idea of having to share the space with another cat.
Hi James,
Personally I would not have tried this setup, happy you did, if I get my hands on one of these tools, I know what to expect, a versatile and efficient tool.
Thanks for sharing,
Pierre
Just picked up a used diamond tool holder for 1/4" square bits, The guy didn't have the sharpening jig, can anyone give me the correct angles to build one.
Jim,
Liked the video and learned something in the process. That's what you call a win-win! Thanks for sharing.
Have a good one!
Dave
Thank you so very much for a great series & the wonderful tips. Great stuff!
Best Regards,
Jon
koles ma uchwy z Polski czy Bison
Part 2 is a great education video.
Thanks for sharing....13
Nice demo. And when I see how much space you have in your shop I want to cry.
5:14 speed and feed chart metric convert please
+Sơn Đặng No problem Depth Of Cut 5.08mm Feed Per Revolution .101 mm 250 RPM 75.5 Meters Per Minute surface speed.
One of my mentors when I was a heavy truck tech always used gojo hand cleaner when tapping holes in aluminum. I have never tried it myself but it always seem to work well for him. I don't know if that was just the best thing he always had on hand or if there was something more there?? Just thought of that when you were talking about lubes for cutting aluminum and thought I'd share.
jeff edison Thanks, never tried that before. I assume its the GoJo original without the pumice? :-)
+jeff edison Yes, that sheep fat and soap makes a real good cutting lube. Without the abrasive of course.
Cat says "Hello" @ 13:58 :)
I love my Aussie made diamond tool holders and have even used old (broken) drill bits in it for finishing. The round tool give a very nice finish snd is great for radius turning.
I also very much like their parting tool. The T section running inverted makes parting, particularly on less ridge machine a breeze.
+Tony Roulston I never knew they had a parting tool I will have to look into it, thanks for the tip.
+James Kilroy
Here you go.
eccentricengineering.com.au/index.php?option=com_content&view=article&id=31&Itemid=45
I know the idea of inverted parting in reverse is not new, i have sen parting tools setup on the rear of the cross slide for that purpose. This tool is easily sharpened, and I find works very well.
Love your videos please keep up the great production.
Yes the original.
13:58 shop cat!
James I have the same tool holder and use it all the time I love it but I don't use HSS in mine I use Crobalt. Give it a shot you will notice a big diff all around. Great video James I enjoyed it..
If a Cronut is a croissant combined with a doughnut. A Crobalt must be a croissant made in Baltimore. It don't see how that's going to help. Sorry volcom, just having a little fun with your typo :)
Good show as always James, thanks for sharing.
Matt I take it you don't have a machine shop? Crobalt has been manufactured in the USA since the 1920s and is a cast alloy made from 50% Cobalt, with the other 50% being Tungsten, Chromium, their carbides and some other additives. It's stronger than HSS but withstand much higher temps and holds a cutting edge longer witch saves time at the grinder.. In a machine shop time is money and I would rather be making money than sharpening and honing HSS but that don't mean HSS don't have it's place just as carbide and ceramics..
I'm an electrical engineer professionally, purely an amateur machinist. Learning every day, thanks for the lesson.
It's a lot of fun and so much to learn that it fry's your brain lol also way to much cool stuff to buy :)
I have been wanting to purchase a couple of Crobalt tools bits and give them a run, I have had several folks make that suggestion. Thanks for the tip.
Cutting aluminum, sorry it just does not count--why don't you cut lead and video it..
If I have offended I am sorry but I have to be real..
Ian Craig There is no reason to demo a cutter like this with a material that 99% of people are never going to cut on their machines. I could have cut Inconel, Waspalloy, and Titanium to, but guess what, 99.9% of the people that purchase a cutter like this are never, ever going to cut those materials. Guess what they will cut? Aluminum and steel.
+James Kilroy how about 4130 1/4" depth of cut.