You can create the clearance area of the cutter by setting the flute length and should length to only the thread form. Use the shaft tab to create the clearance area. This way you can get correct simulations.
sadly I have no idea how you got to those parameters options, because I am still pretty new to Fusion. Other than that this video worked great for me and I was the first in my company to thread mill a hole instead of tapping (often by hand) 👍👏
Nice vid and great refresher. I need to do some 4-40 threads tomorrow. At 8:38 in the video shouldn't the thread pitch for 4-40 be 0.025" and NOT 0.0178571 ? How did that screw work at the end of the video? ;)
Do they even make threadmills that small? Ive been looking myself for a 000-120, no luck from any suppliers. Smallest Ive found was a 1.2mm, which does work amazing, made apporx. 3000 holes so far on the same tool in Ti. Absolute beast.
@@halfhappy117 I was joking about it. As far as I know nobody makes a tool that small. At that size you probably have to use EDM or some other technology for micro machining I’m not familiar with.
Take a look at the "How to threadmill!" Page on NYCCNC.com - there is a short section about finding the stepover. The calculated PDO / 2 is the stepover if you were to do it all in one pass. You can then take this number and either divide it by the number of passes you want to do to get a stepover, or divide it by the desired stepover to get a passes number. (Passes * stepover = PDO / 2)
There are a lot of thread mills on the market and very confusing on how to know what to purchase. It would be nice to have an explanation on how to select the proper thread mill for the job. These videos make the assumption you know what thread mill is needed.
I have been trying to get this to work for me in my company's Prototrak 2op VMC. I'm cutting a 4-40 thread in 52100 steel. It's only producing threads that are much too tight to put the screw into. I've increased the pitch diameter offset all the way to .048" (by .001" increments) and it is still way too tight. Also, the thread mill broke after a very short run of tools, only using a .003" step over and feed rate of 1.5 ipm. This is extremely frustrating because I talked my boss into buying the $90 tool and he was very skeptical, however I explained that this video and other help threads showed me the proper parameters. I doubt I will be allowed to get another thread mill after this. Very very disappointed in this video apparently showing me how to do something incorrectly.
Dont forget to Usedom the correct Formula For the feed while threadmilling! (Fz*Number of cutting edges) * (hole diameter - cutter diameter) ÷ hole diameter
education license, you should ask the big man for a budget increase for the smw youtube department :D. Doesnt grimsmo do 4-40 threads all the time, although its cheating because hes got brand new 1m$ machine.
When will you stop using Fu$ion 360 and start using FreeCad? It would be cool to have your tutorial for a free and open source program instead of the blatant sellout that Autodesk did with Fusion
Really? Can you write an NC file for a 3D model mold faster than CAM? Maybe for a straight line...LOL Not every shop cuts slots and holes... I understand the frustration of those who can not afford CAM software, as I do with guys that think their conventional machines are better than CNC!
@@srnc9740 I'm talking about simple jobs like threadmilling. Anything under say 30 lines of simple G-code is often faster to program by hand rather than using CAM-software. However, for serial production of complex parts I'd use Mastercam or something similar to generate toolpaths, but I'd also check the code manually for any possible improvements regarding travel moves, tool changes and alike.
Great narrator voice and explanations. Well done.
You can create the clearance area of the cutter by setting the flute length and should length to only the thread form. Use the shaft tab to create the clearance area. This way you can get correct simulations.
I was going to mention this too, however you cannot parameterize the shaft values in the tool tab. That is one benefit of using the form tool method.
Excellent video, look forward to attempting threads on my mill.
Great video, enjoyed the clear explanations and instruction and appreciate the resources and knowledge provided.
sadly I have no idea how you got to those parameters options, because I am still pretty new to Fusion. Other than that this video worked great for me and I was the first in my company to thread mill a hole instead of tapping (often by hand) 👍👏
Wow great video! Thanks for sharing the knowledge!
Awesome!! Thanks Alex, John & NYC CNC
Very nicely done!
ATB, Robin
What's going on with the Johnny 5 build??
Who the hell cares
@@madaxe79 The people who contributed parts probably care.
@@deemstyle yeah I suppose you’re right.
@@deemstyle yes, we do lol
Nice vid and great refresher. I need to do some 4-40 threads tomorrow. At 8:38 in the video shouldn't the thread pitch for 4-40 be 0.025" and NOT 0.0178571 ? How did that screw work at the end of the video? ;)
You're right. Not sure how that worked lol
Интересно. Нам бы такой агрегат.
Just for funsies, do a #0000-160 thread. I'm really curious whether the Tormach has the stepper resolution for such a small thread.
Do they even make threadmills that small? Ive been looking myself for a 000-120, no luck from any suppliers. Smallest Ive found was a 1.2mm, which does work amazing, made apporx. 3000 holes so far on the same tool in Ti. Absolute beast.
@@halfhappy117 I was joking about it. As far as I know nobody makes a tool that small. At that size you probably have to use EDM or some other technology for micro machining I’m not familiar with.
Thanks for another great video. Is there a calculation for stepover in the multipasses? Can't get my head around this.
Take a look at the "How to threadmill!" Page on NYCCNC.com - there is a short section about finding the stepover. The calculated PDO / 2 is the stepover if you were to do it all in one pass. You can then take this number and either divide it by the number of passes you want to do to get a stepover, or divide it by the desired stepover to get a passes number. (Passes * stepover = PDO / 2)
There are a lot of thread mills on the market and very confusing on how to know what to purchase. It would be nice to have an explanation on how to select the proper thread mill for the job. These videos make the assumption you know what thread mill is needed.
So for #2 screw, the major diameter is 0.0860", and you drill a 0.0700" hole with a #50 drill. Makes total sense.
I have been trying to get this to work for me in my company's Prototrak 2op VMC. I'm cutting a 4-40 thread in 52100 steel. It's only producing threads that are much too tight to put the screw into. I've increased the pitch diameter offset all the way to .048" (by .001" increments) and it is still way too tight. Also, the thread mill broke after a very short run of tools, only using a .003" step over and feed rate of 1.5 ipm. This is extremely frustrating because I talked my boss into buying the $90 tool and he was very skeptical, however I explained that this video and other help threads showed me the proper parameters. I doubt I will be allowed to get another thread mill after this.
Very very disappointed in this video apparently showing me how to do something incorrectly.
Our thread mills have a programable radius written on the tool so you don't have to faff about working out what size to program.
I'm waiting for the real world machining in your videos, cutting AL is "Childrens's Play" make "Undertaker Play" and do some titanium work :)
0:55 Diameter vs shaft diameter. Put the neck diameter in diameter, and the main body diameter in shaft diameter. That how I did it.
Dont forget to Usedom the correct Formula For the feed while threadmilling!
(Fz*Number of cutting edges) * (hole diameter - cutter diameter) ÷ hole diameter
I can't locate the spreadsheet you refer too.
What about rpm and speed?
Nah show me some threadmilling for the screw sizes used in an iphone
Sorry guys, but 2-56=-54 and 4-40 is -36 !
;P
oh god - please change model view to 3D perspective. I thought i was having a stroke. isometric projection frigs with my head.
I wish i had these 0-80 is my most common 😭😭😭
go no go gage?
education license, you should ask the big man for a budget increase for the smw youtube department :D. Doesnt grimsmo do 4-40 threads all the time, although its cheating because hes got brand new 1m$ machine.
First?
When will you stop using Fu$ion 360 and start using FreeCad? It would be cool to have your tutorial for a free and open source program instead of the blatant sellout that Autodesk did with Fusion
Am I the only person who saw the title as Micro Treadmill? Was kinda disappointed when there wasn't a tiny running machine. 😁
This is only a problem for people relying completely on CAM-software, writing by hand is often faster than this
Really? Can you write an NC file for a 3D model mold faster than CAM? Maybe for a straight line...LOL
Not every shop cuts slots and holes...
I understand the frustration of those who can not afford CAM software, as I do with guys that think their conventional machines are better than CNC!
@@srnc9740 I'm talking about simple jobs like threadmilling. Anything under say 30 lines of simple G-code is often faster to program by hand rather than using CAM-software. However, for serial production of complex parts I'd use Mastercam or something similar to generate toolpaths, but I'd also check the code manually for any possible improvements regarding travel moves, tool changes and alike.