Search found 5 matches

by kosme
Tue Aug 28, 2012 8:43 pm
Forum: PCB Fabrication
Topic: PCB depth sensing software for Grbl
Replies: 10
Views: 5671

Re: PCB depth sensing software for Grbl

Thanks for the sugestion Cvoinesu, I will give it a try. Indeed the detector functions like you described. The analog 0 pin of the microcontroller is pulled up by the internal pull-up resistors and detects when the tool touches the copper cladding that is connected to GND. I implemented a "debounce ...
by kosme
Tue Aug 28, 2012 7:37 pm
Forum: PCB Fabrication
Topic: PCB depth sensing software for Grbl
Replies: 10
Views: 5671

Re: PCB depth sensing software for Grbl

Edward, indeed this could be used for leveling the head after tool change, but right now I have to solve something that just appeared. The software and the firmware mod work fine together BUT the motors generate lots of electrical noise and that messes the sensing. Have to figure out how to filter t...
by kosme
Mon Aug 27, 2012 4:50 pm
Forum: PCB Fabrication
Topic: PCB depth sensing software for Grbl
Replies: 10
Views: 5671

Re: PCB depth sensing software for Grbl

I don't really see being on batch 3 as such a big deal. Lots of stuff are getting improved and developed by people from previous batches that will make the life easier for people on future batches.

Kosme
by kosme
Sun Aug 26, 2012 5:05 pm
Forum: PCB Fabrication
Topic: PCB depth sensing software for Grbl
Replies: 10
Views: 5671

PCB depth sensing software for Grbl

I am currently developing a fork of Grbl and its correspondig software for the PC that will allow to sense the surface of the clad board for uneveness and adjust the gcode acording to it. It is currently in alpha version but I hope to release a first version next week.

Kosme
by kosme
Thu Aug 09, 2012 6:47 pm
Forum: PCB Fabrication
Topic: Anybody actually milling pcbs with shapeoko?
Replies: 13
Views: 4697

Re: Anybody actually milling pcbs with shapeoko?

How are you making the copper clad perpendicular to the cutting bit?