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Old 10-11-2017, 09:37 PM   #41
gerritv
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At a list price of over $1200 your comment is more or less irrelevant in this present context? (Nick I initially misinterpreted your comment and realized later that there is a wink at the end, sorry for sounding snarky.)

If the work you need to do is within the range of .5-1.5", what reason is there to increase complexity? Easy enough to make 3 carrier heads to cover the full range. 3 1" cubed blocks of steel , a bit of milling and drilling and voila.


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Last edited by gerritv; 10-12-2017 at 12:00 PM. Reason: Fixed misinterpretation
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Old 10-12-2017, 04:22 PM   #42
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Originally Posted by gerritv View Post
At a list price of over $1200
Keep your eye on eBay, mine was ex-industrial and needed 1 new wheel and a new bearing/carrier, price was around 1/10th of that
They come up for sale more often than you'd imagine, I found one listed and sent the link for a friend to buy in April this year for a similar price.

- Nick


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Old 10-13-2017, 07:09 PM   #43
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BINGO! For some reason this entire thread has the knurl cutters being dragged backwards so the teeth contact the workpiece first rather than the flat edge of the cutter as is required for true cutting.

WOB

Cut knurling is made like this:
I took your comment to heart but here is a commercial grade tool (Same brand that Nick has) that does not cut with the leading edge:
at 1:30 in they cut-knurl with similar configuration to what Bazmak et al started with.

Nick, can you confirm if yours cuts on leading or trailing edge f the wheel?

Gerrit
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Old 10-13-2017, 09:19 PM   #44
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Mine cut the opposite to how Bazmak and the Integi Video show it

This animation shows how I use mine -

https://youtu.be/7PwBwQR2LNg

and this one -

https://youtu.be/ViRHsf9_VRg

My knurls are all "Quick" branded so I do it their way ;-)
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Old 10-14-2017, 06:12 PM   #45
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If you analyse it logically then with any system worth using you must be able to knurl to a stop point and have a consistent cut to the end. ;-)
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Old 10-14-2017, 06:22 PM   #46
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Quote:
Originally Posted by gerritv View Post
I took your comment to heart but here is a commercial grade tool (Same brand that Nick has) that does not cut with the leading edge:
https://www.youtube.com/watch?v=46mPFZrVAKk at 1:30 in they cut-knurl with similar configuration to what Bazmak et al started with.

Nick, can you confirm if yours cuts on leading or trailing edge f the wheel?

Gerrit
There is something odd about the knurling tool's teeth at 1:33 just as it reaches the end of the cut and is retracted. The knurls stop spinning and you can see the leading edge is beveled. This is not a conventional cut knurling tool like the Zeus. It makes me think it is actually a kind of pressure knurling since the bevels would negate cutting if fed into the workpiece in the conventional manner. I believe the reason it was done that way is to avoid cutting into the pressure knurled band just to the left which is larger in dia. than the cut knurled area being machined at 1:30. Maybe. Just a possible explanation.

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Old 10-15-2017, 12:39 PM   #47
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Whatever direction the knurls are intended to move no manufacturer will have 2" of tool body sticking out in front of the knurls, at the very least that would render it impossible to knurl a short part in the lathe ;-)


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