Drag Knife Features

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cnc-peter
Posts: 18
Joined: Sat May 20, 2017 5:05 pm

Drag Knife Features

Post by cnc-peter » Sun Jan 28, 2018 2:18 pm

Hi,
is there any documentaion about the features of the drage knife plugin ?
What kind of post prozessor is needed ? I use the usbcnc from eding. I think that spindle speed, cooling, etc is not needed.
Many thanks in advanced !
Regards
Peter

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Les Newell
Site Admin
Posts: 2563
Joined: Thu May 11, 2006 8:12 pm

Re: Drag Knife Features

Post by Les Newell » Mon Jan 29, 2018 4:55 pm

There isn't much documentation for that plugin. Just ask me if you have any quastions. It will work with any of the standard post processors.

egg
Posts: 2
Joined: Wed Jun 24, 2020 7:43 pm

Re: Drag Knife Features

Post by egg » Wed Jun 24, 2020 7:49 pm

Im looking for help with the donek drag knife in sheetcam. When i run the code in mach4, the z axis drives down and doesn't stop, no matter where i have my zero set. Curious what i might be missing. I have tried switching the touch off setting from ohmic to mechanical. That made no difference. The other thing i have tried, is using the ohmic zero device when the z axis starts to lower. It stops the z axis, but the program stalls at that point. I think it must be something in sheetcam yhat i am doing wrong. I am using the avidcnc post processor in sheetcam.

Thanks much
Pat

egg
Posts: 2
Joined: Wed Jun 24, 2020 7:43 pm

Re: Drag Knife Features

Post by egg » Wed Jun 24, 2020 10:16 pm

After looking further, we noticed the code driving the z axis to -100 on line N0110. We changed that to zero, however the code stalls once again when we get to line N0180 where we get a "ESS failure! Probe0 never hit or the allowed distance was traveled. Switching from Probing to Normal state" When I change N0180 to Z0, the code continues on to the next line. I will try using a fusion 360 post next, but in the mean time if anyone has any ideas, I would super appreciate them!

Thanks again,
pat
Attachments
test knife.tap
(22.78 KiB) Not downloaded yet

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Les Newell
Site Admin
Posts: 2563
Joined: Thu May 11, 2006 8:12 pm

Re: Drag Knife Features

Post by Les Newell » Thu Jun 25, 2020 10:46 am

You are probably using teh wrong post processor. Try the 'Mach3' post processor instead.

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