The donek drag knife fits into your cnc router or spindle collet making it a universal fit for almost any cnc router available.
Cnc drag knife plans.
The model now has approx 1mm of drag.
Place the blade into position as.
Drag knife by grunblau here it is broken down into component parts.
Drag knife components as you can see it s pretty simple and would be pretty easy to build.
Radius are possible with these tools.
Add the top plate and secure with three 1 4 20 x 1 bolts as shown here.
Insert one of the bearings into the bottom plate then insert the knife holder into the bearing from the.
Cnc drag knife the donek tools drag knife can be used to cut almost anything you would cut with a utility knife but with the speed and precision of a cnc router.
I don t think the drag knife is meant to be axially loaded so the fit while it should be snug isn t designed to support any weight.
Curved cuts as small as 1 16 in.
Update 2 september 2016 i initially published the model before i added any drag length.
Thanks to the cutter holder s great height adjustment of about 10 mm the knife adjusts easily and automatically to the irregularities of the materials.
Build a drag knife for your cnc router or mill cnccookbook.
I have been watching all the tutorials and reading all the comments but my drag knife doesn t turn with the lines and get broken.
Description drag knife holder for cnc machines with unique automatic pressure regulation out of high quality aluminum for vinyl cutting the cutting depth of the knife can be adjusted via the set screw and remains securely set.
I recently came across a great cnczone post for this drag knife.
Commercial drag knifes are readily made but can be a bit expensive for the hobbyist.
The d1 fits in a 1 2in collet and the d3 fits in a 1 4in collet.
Add the other bearing to the assembly.
Be a better cnc er drag knifes are really handy for cutting soft materials like vinyl cardboard mat board foam wood veneer leather and many others.
Drag knife i have a problem using my cnc with the aspire program.
