Homebrew PCBs

Stefan

I haven't made up my mind yet on using the slides, but for the sole
purpose of DRILLING they are  - and that's something I'm VERY sure
about - definately up to the task. Well, it could end up so cheap that
I may try it out just for the fun of it! I mean the steppers and a
controller are definately useable for more than one machine and I have
a relatively small / simple machine in mind so I don't think I would
loose a lot in the negative case.

The bearing / tube aproach is surely the right one if there are higher
forces (milling).

Anyways, whatever I will end up doing I surely will post a link. I
also enjoy this ongoing discussion here of course.

Markus

>@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
>
>
>
>
>
>
>
>
>Be sure to visit the group home and check for new Bookmarks and files:
>http://groups.yahoo.com/group/Homebrew_PCBs
>
>To unsubscribe from this group, send an email to:
>Homebrew_PCBs-unsubscribe@yahoogroups.com
>
> 
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ 
>