Homebrew PCBs

@markus


no need for photo, now i know which type of slide you mean...
i have seen them on a computer table once (but the ones had some play if i 
remember correct..)

we have hornbach here too.....

and it is nice to hear you have made a 4 layer...
my designs are not so complicated,2 layers are enough for me and
throughhle plating i don't want to set up because of the high starting 
costs (chemicals) and not enough need...


i hope you can use the slides..








but anyways i would go for some sort of steel tubes and 3 ball bearings 
(actually 2x3 on the two sides of the main carriage, makes 12 for this and 
12for the second axis... haven't thought about the tool z axis but may need 
12 too....

but the positive thing is this small bearings are very cheap (you can use 
the "roller blades" bearings in blister pack....)


but i still have no idea where to get this shafts..
they must be very accurate, may be pipes or solid shafts...


who did post High Techs PCB's in the photos section?

looks nice, looks like the guy has a lot of wood like i do... would be very 
interested in talking about this machine..... (precision)



i was looking for the PET controlled cnc, it has nice rails, how are the 
bearings made?
i think 3 point too? the rails are supported from the bottom...


regards
stefan