Thought I'd share something a bit different here - some pics of the 2mm LD33 Plastazote foam I'm cutting with my SC840 and Donek D4 dragknife, both supplied by the excellent Rory of StoneyCNC, whose support in getting everything up and running has been absolutely invaluable!
I'm cutting three different shapes into 2mm Plastazote to stack to make a 6mm insert for a CD-like plastic case. The Donek D4 does an excellent job running at 3000 mm/min. The foam comes in long rolls, which I'm securing for cutting with a CNC-Step vacuum table. It took a while to get the parameters (cut depth, swivel depth for the corner actions etc.) right, because the table is not really flat - it has a slight bow to it (front and back) but it's working well enough.
The product incidentally is a very high-quality crystal glass nailfile for guitarists, made for me in the Czech Republic. Prior to the arrival of my Stepcraft, I was cutting this packaging individually by hand with an x-acto knife!!
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What did you use for a program to setup the G Code for the Donek? Vectric stuff? And what did you use for values (offset, etc)? We have one here and can not get it to work with the dragknife gadget in Vectric Cut2D pro.
stepcraft-usa schrieb: What did you use for a program to setup the G Code for the Donek? Vectric stuff? And what did you use for values (offset, etc)? We have one here and can not get it to work with the dragknife gadget in Vectric Cut2D pro.
I think the key parameter is the acceleration. By using a low value you give enough time for the knife to rotate. It's a drag knife after all, it requires motion to align.