Went a little ambitious for Christmas. Thought I could draft a rubber band gun and get it to work the first time. Tried for a Semi automatic 6 shot RBG, what I got wasn’t too far off. No semi auto but the same mechanism works ok for single shots.
Build took about 2 hours cut out of Baltic Birch.
Feed = 450mm
Depth per pass = .7mm
Spindle Speed = Makita dial at 2.5 (approx. 14,000 rpms)
End Mill = .125" dual flute
Took a bit longer than I wanted, Didn’t want to cut too deep all at once. Later tests I was able to double my depth per pass at 350mm feed rate but the burring was really bad on the wood.
Let me know if you see anything I could do different/better. This is my first real project with cnc.