Has anyone tried cutting acrylic ? any tips that might come in handy ? @EastBaySource
Not on the Maslow, but on the desktop-cnc.
First is the source/manufacture of the Acrylic,
Extruded is cheaper and might give more trouble on melting back, Cell cast acrylic is higher quality that I am using, and the best speeds and feeds on the desktop-cnc are determined by nice ‘snowflakes’ coming of the bit to take the heat away.
I have no idea, but with the slow speed of the Maslow and the far to high speeds of a router (changed to spindle for speed control) , I would start from low Z-depth and look how the chips are. If they are ‘snowflakes’ and not melting, go ahead.
On the desktop-cnc I’m using 3.175 mm bit quite fast and go down on acrylic at a bit half of the bit diameter.
Honestly, on a slow machine like the Maslow I don’t know how I would approach this.
Maybe creating a .nc with 10 small cuts at different depths and speed and going for the best “snowflake”,
Kind regards, Gero
Thanks for the feedback, I bought the machine and will be here in a couple of days I’ll try and come back with an answer. Hope is a fine one
I recently did this:
- 10k rpm
- 1/8" double flute up cut
- Default feed rate from web control
- 1/8" material, single pass
No chips, ended up with a melty blob on my bit but it worked well enough for the part to be usable. My recommendations:
- Get a single flute bit
- Try to increase feed rate
Now that I’m thinking about it it also might not be too hard to make an adapter for a dremel tool. Those handle smaller bits and can do much lower RPMs. That might be a good solution for plastics.
Please try the following settings
1/2 Bit diameter depth per pass
Follow Gero recommendations
cast acrylic is the easiest to cut. I’ve never had much luck with extruded acrylic and it smells horrible too when it melts.
great, my machine is coming is this week. next week I’ll have an answer