Yeah, I’m fairly new to CNC, so I’ll be experimenting with different tools and settings for a while
I’ve used a 2mm bit diameter, with a 1mm depth per pass and a feed rate of 900mm/min. The figure in the image above took 95 minutes to cut from a 9mm plywood sheet.
Today, I’ll be testing a 4mm single-flute bit, aiming to double the feed rate.
New clamp wedge design. Remember to set a pause in your 3D printer at the layer height at the top of the captive nut. And as soon as your printer hits that pause layer get the captive nuts in pronto - it’s easier when the plastic is hot, and you’ll get better layer adhesion when you continue printing.
The PCB mount that I had first printed in PLA, didn’t survive some abuse I was throwing at it, specifically when I lifted up the top clamp with the entire spindle assembling in by holding onto the PCB. It’s still holding together, but barely.
So, I’m reprinting in PETG.
And if you’ve already printed yours in PLA? Don’t worry about, just don’t do what I did.
@TimS,
Thanks, this is on my to-do list.
That said, even with the stock fan and minimal clearance (about 5mm) between the PCB and spindle, the spindle barely feels warm after 3+ hours of continuous operation at max RPM.
@bar,
The spindle itself is very quiet - much quieter than my shop vac, most of the noise comes from cutting and vibrations resonating in the plywood. I haven’t run Maslow with my Makita router, so a direct comparison wouldn’t be fair. However, comparing the Makita’s noise (cutting 6.5mm in a single pass by hand) to the spindle (cutting 2mm per pass), the difference is significant.