Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
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Well I was going to use my LPKF 91S to do the drilling and routing and then toner transfer followed by toner tranfer foil like PulsarFx used to use. If there are issues with the holes after that then there is always the Sharpie. In general this process would be for low res boards anyway. Other boards I'll just send to China.
Sam
On Sun, Jan 14, 2024, 11:05 AM Reginald Beardsley via <pulaskite= [email protected]> wrote: Sam,
I have solved my problem for a total cost including table of $50. I'm not about to make my own PCBs. This is for drilling enclosures.
Pick a reference point and zero the DRO at that point. Then use the DRO to locate all the other holes. A wiggler is the cheapest location method, but electronic XYZ setters are common and easy to DIY.
Toner transfer is limited in size by the distortion. I'd suggest you measure the transfer *very* carefully over the longest hole to hole distance and adjust appropriately to minimize the error for all the holes lest you have pads next to the holes between the traces.
Have Fun!
Reg
On Saturday, January 13, 2024 at 11:57:52 PM CST, Sam Reaves < sam.reaves@...> wrote:
Reg,
One option would be to use the CNC to drill all of the holes and then lightly sand the PCB for the toner transfer process. I'm going to try that as the drilling process is the most intensive process for DIY PCB's.
I looked around for the cross hair and found that (It's really expensive) but you have to take it out for each measurement so for PCB work that would be a PITA.?
I found a laser one on Amazon. I wonder if the focus would be sharp enough to drill PCB's. I think I would leave the toner on if using toner transfer?so that the laser does not reflect. Cheap enough though. I may get one and try it out.
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Sam Reaves