#Inkscape gcode tools set cutting depth update

This is something IвЂ™ve mentioned in my blade holder update notes on the Thingiverse page вЂ“ the idea being to copy the TOCK approach and use Olfa blades. Perhaps a spring clamp like your rod clamp in the blade holder?ДЄs for the blade only, weвЂ™re on the same page, however I think for a couple of reasons an Olfa snap off might be preferable. The challenge might be that without any holes or indents in the blade piece, having it mounted securely. With Olfa snap-off blades, you get super cheap - I find changing the blade often is needed more than you might think. X-acto blades offer a very steep cutting angle (closer to perpendicular) so while there are advantages in terms of reducing over-cut on thick material, there would be much more resistance on the cut. Same is pushing a knife straight down through a tomato without any lateral movement. If you think about sticking a blade in to thick cardboard with the blade edge perpendicular to the direction of travel, you can imaging it will be quite tough to move because there will be no slicing at all. I guess there are two reasons for this: more blade in the material, and the shallower the angle, the bigger the component of transverse movement or slicing action. What I found is a shallower cutting angle is more efficient. See this post for some experiments with blade angle. the material has a big impact on success. IвЂ™ve found cutting thick material presents a few challenges. This is something IвЂ™ve mentioned in my blade holder update notes on the Thingiverse page - the idea being to copy the TOCK approach and use Olfa blades. You mention why the whole knife option wonвЂ™t work - there needs to be a zero offset.ДЄs for the blade only, weвЂ™re on the same page, however I think for a couple of reasons an Olfa snap off might be preferable. On this occasion I personally have my doubts. ItвЂ™s great when you challenge yourself on a project to see the ideas flood in. While walking thru some hobby stores today, I had the idea that an x-acto knife might work with this Think I have simplified my mount adapter, at least cut down considerably on the amount of plastic to use. I just realized that using the whole knife would make the tip of the blade offset from the center, but using just the blade would not. For the single blade mount, I added the notch in the center to hold it in place. For just the blade mount I would add just a simple cover with 2 screws to hold it in.

Anyway, here are a couple of screen shots of the design for reference. Actually the #1 knife measures 7.96mm OD which should be close enough to 8mm, but I was not sure that would be strong enough. The diameter of the Number 2 knife with number 2 blade I was using, is a measured 11.15mm OD. Using just the blade is probably a better way to go as the part is smaller and you would not have to use a non-standard 3d printed bushing.

I did 2 design versions, one with the knife and one with just the blade. While walking thru some hobby stores today, I had the idea that an x-acto knife might work with this, but not sure if it would be as strong a blade cut as what you are using. Glad it is working for you & I have had to print very little to test it so far.