could you photo-etch a masked board instead? is the 1.6 watt laser enough?

how can make dimension track exact

Have You measured the run-out (wobbling) of a bit in Your snapmaker? From what I can see on the video the 0,2mm bit gave the copper separation width about twice the width of the track which You measured at about 0,3mm. Far too wide for one pass I think. Was it done in more passes, or is it due to the an excessive run-out?

@GarageFactorySD

2 жыл бұрын

Oh this was done in one pass, but the sometimes the routing would cross another track that is close so it would double etch in those regions

@nonamepersonanonymous5246

2 жыл бұрын

@@GarageFactorySD Thanks.

@m.l.5284

Жыл бұрын

I had same problem, milling PCBs with Snapmaker 2.0. It's caused by minor height differences. I solved it by post-processing all gcode files through a python script, that does the z-compensation, based on a height-map. It gives much better results, but takes much time for measuring the height-maps.

I use an old ender 3, a cheap Chinese v bit and a £16 tacklife lipo powered rotary tool... crisp edges nothing rough, tracks down to 6mil. I have video and pics if you would like to see, I think your rpm is too low, I usually mill with a v-bit at 15,000-20,000 rpm.

@GarageFactorySD

3 жыл бұрын

oh ok, thanks! I will try out a higher rpm

just wish that caliper were in metric :(

@struki84

3 жыл бұрын

Lol, just wanted to comment the same thing.