Homebrew PCBs

mycroft2152 wrote:

> Hi Alan,
> 
> How about a couple of extra pictures? Would help in building mine.
> 
> 1. the mounting of the screw end opposite to the motor with bearings
> 
> 2. Close up of the nuts on the screw shaft.
> 
> Thanks,
> 
> Myc
> 


   Hang on a day or two and I'll write up exactly how to build one. 
Nut/follower for X is crude but worked well enough that I never brought it out 
and made a more robust one.  Wasn't intending to put much in the way of 
machining loads on it so I never did the extra design time.  The basic rails are 
heavy duty, with a little more work in the drive system it could run a router. 
Can do it now you just have to go slow.

   Was kind of keeping it to myself since the bang for the buck and design was 
high, thought about making them.  I haven't seen anything on the net that made 
nearly as much sense for mainly drilling, most sub $100 for mechanics systems 
are wood or don't just bolt together etc.  I could probably build 10 in one day 
without breaking too much of a sweat.  Of course soon as I sold the first one 
the basic design would be out there anyway, but most can't do it all and I was 
going to sell it with my driver card etc.  That's why I have 2000 MOSFETs and 
hmm 300 motors or so on hand.  Heck even now I should put my 
rotation/translation code into the PIC side to hide it and start selling.  Seems 
relatively few people have a decent enough grasp on even basic trig to do things 
like that, at least judging by the CNC programs I see out there.  I consider 
most cheap programs that I've seen severely lacking in one respect or another, 
especially that one.  The one time effort to work out the trig to correct for 
everything is very small vs everyone having to align everything themselves..  My 
program has been a minimal effort so far yet still is at least not lacking for 
working the way it should lol.  Heck I need it up and running again, I may even 
work on it some tonight.

Alan