RE: [CAD_CAM_EDM_DRO] Don't give up!!!

Amen, and you can now get a very workable CNC conversion of a small machine,
for about $225.00 not including the machine. I have the plans for Dave
Rigotti's HobbyCNC machine and have seen one in action that someone in the
CAMS club built, pretty impressive for a plywood machine, and the quality of
the work he produces with it is outstanding. Below is my take on just how
low cost you can go for a basic beginner CNC conversion:

Estimated Cost of a Basic CNC Conversion

Supplier Part Number Price
Xylotex Driver Board
www.xylotex.com Xylotex XS-3525/8S-3 $85.00

24 Volt 10 Amp transformer
www.mpja.com MPJA 7846 TR $17.99

Bridge Rectifier
www.mpja.com MPJA 5248BR $2.70

15000uf 100 V Electrolytic Cap
www.mouser.com Mouser 539-CGS100V15000 $29.66

3ea 100 oz/in Stepper Motors e-bay $25.00
Misc. wire, switches, connectors Radio Shack $40.00

Electronic Parts: $200.35

TurboCNC software www.dakeng.com DAK Eng. $20.00

Total: $220.35


Please note that this does not include shipping, motor mounts, motor
couplers or a box to put the driver / power supply in. Depending on the
current levels you are using you may also need a fan for the driver box. I
did not include the cost of a surplus PC since this can vary greatly. This
also does not take into account what a person may already have in their
parts collection.

John Guenther
'Ye Olde Pen Maker'
Sterling, Virginia

> -----Original Message-----
> From: Tim Goldstein [mailto:timg@...]
> Sent: Friday, January 31, 2003 10:46 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: RE: [CAD_CAM_EDM_DRO] Don't give up!!!
>
>
> Ballendo,
>
> Thanks for the post. This is a subject I keep harping on. Yes CNC is an
> expensive hobby, but we (the royal collective we) often tech it to death
> and make it far more difficult and expensive than it has to be. I think
> it is very important to step back and look at the desired outcome. If
> the goal is to make a machine that can cut balsa and hold a tolerance of
> say .020" than there are some very low cost approaches to getting the
> job done. As you mention there are low cost designs that do work and you
> can cut balsa just fine with a small high speed bit. Not everything
> needs to be designed to hold micron accuracy.
>
> Tim
> [Denver, CO]
> Sherline products at Deep Discount
> Mach1 & DeskCNC with credit card ordering
> www.KTMarketing.com/Sherline
>
> > -----Original Message-----
> > Hello,
> >
> > Depends on what you're looking to do. And what you're WILLING to do
> > to get there...
> >
> > So maybe you can't get a laser CNC setup for 300 bucks? You CAN get a
> > balsa CAPABLE setup for 300 bucks (Dave rigotti, and John Kleinbauer
> > come to mind, as well as Luberth, and others).
> >
> > So build one of these. Maybe you can sell some model balsa "kits" to
> > others to finance the 500 more bucks you'll need to put a laser on
> > Johns "Scrappy", or pipe dream, or daves Hobby CNC... Yeah, if you're
> > willing to look, and learn, these prices ARE do-able. been there.
> > Done that.
> >
> > It's pretty easy to get caught up in the "professional" side of
> > looking at cnc, and forget that the hobby side doesn't HAVE to
> > cost "thousands"...
> >
> > Good luck,
> >
> > Ballendo
> >
> > P.S. Did anyone contact mr. linear to find out where he got his diode?
> >
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com,
> wanliker@..., timg@...
> Moderator: pentam@... indigo_red@... [Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to
> reach it if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this
> to be a sister site to the CCED group, as many of the same
> members are there, for OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY
> POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO
> EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>