CAD CAM EDM DRO - Yahoo Group Archive

RE: [CAD_CAM_EDM_DRO] milling circuit boards

Posted by Paul Kelly
on 2006-10-05 19:20:25 UTC
I milled a couple of boards, it just isn't as good or quick as the process I
use now.
The Kinsten pre sensitised board is cheap, I print my image onto
transparency using my inkjet printer
expose in a $5 rig, dev and etch. A single board takes about 10-15min,
including setup time. If I'm doing a batch I turn on the bubble etcher and
it's much faster.
Then there's the resolution, I use a few PQFP (0.5mm pin spacing) chips.
You're just never gonna do that with a home built router.
PK



_____

From: CAD_CAM_EDM_DRO@yahoogroups.com
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Dennis Schmitz
Sent: Friday, 6 October 2006 9:38 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] milling circuit boards



Sorry, this isn't an answer, but another question. I think I've read
posts from 2 or 3 people milling circuit boards, or trying to. What's
the cost breakdown? Is it really and truly cheaper to make these
boards after you factor in your time and amortize your equipment?

You can get some pretty good prototype quantity boards from internet
outfits like PCB123 now for very cheap, and if you're running
production, there are plenty of board shops out there all undercutting
each other. Check out the back section of any of the EE mags for a
long list of them.

Even 10 years ago "breadboard" meant giving a hand-drawn circuit to a
tech to solder together with perfboard. Today it means doing a quickie
in Eagle and sending it out to an overnight proto house. It's cheaper
than paying the tech.

So where's the upside? Why bother building a machine for it? (serious
question, not sniping)

This is probably off topic, so feel free to email me directly.

TIP: you always pay for one panel, so lay-up several different ones in
the gerbers. If you have space, there are a bunch of free patterns for
proto-boards available to fill it in.

On 10/5/06, wdavis364 <wdavis@gcecisp. <mailto:wdavis%40gcecisp.com> com>
wrote:
> Shopping around for a router, Some router have 1/4 collets and some
> have 1/4 collets and 1/8 collets. Not knowing much about this, what
> size collet will I would most likely to be using in milling circuit
> boards. Will 1/4 collets handle the very small size drill bits(1/32)?
> Thanks for any advice on this.
> bill
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Discussion Thread

wdavis364 2006-10-05 17:28:00 UTC milling circuit boards Dennis Schmitz 2006-10-05 18:42:40 UTC Re: [CAD_CAM_EDM_DRO] milling circuit boards turbulatordude 2006-10-05 19:10:02 UTC Re: milling circuit boards Paul Kelly 2006-10-05 19:20:25 UTC RE: [CAD_CAM_EDM_DRO] milling circuit boards R Rogers 2006-10-05 19:39:18 UTC Re: [CAD_CAM_EDM_DRO] milling circuit boards BRIAN FOLEY 2006-10-05 19:40:29 UTC Re: [CAD_CAM_EDM_DRO] milling circuit boards Bill Davis 2006-10-05 20:45:16 UTC Re: [CAD_CAM_EDM_DRO] Re: milling circuit boards paultitchener 2006-10-05 22:02:58 UTC Re: milling circuit boards turbulatordude 2006-10-06 07:06:21 UTC Re: milling circuit boards R Rogers 2006-10-06 07:28:25 UTC Re: [CAD_CAM_EDM_DRO] Re: milling circuit boards KM6VV 2006-10-06 07:53:27 UTC RE: [CAD_CAM_EDM_DRO] milling circuit boards Tony Jeffree 2006-10-06 07:57:25 UTC Re: [CAD_CAM_EDM_DRO] Re: milling circuit boards KM6VV 2006-10-06 08:07:57 UTC RE: [CAD_CAM_EDM_DRO] milling circuit boards Jack Coats 2006-10-06 08:09:42 UTC Re: [CAD_CAM_EDM_DRO] milling circuit boards Bill Davis 2006-10-06 08:10:40 UTC Re: [CAD_CAM_EDM_DRO] milling circuit boards Jack Coats 2006-10-06 08:16:50 UTC Re: [CAD_CAM_EDM_DRO] Re: milling circuit boards Tony Jeffree 2006-10-06 08:18:23 UTC RE: [CAD_CAM_EDM_DRO] milling circuit boards KM6VV 2006-10-06 08:33:16 UTC RE: [CAD_CAM_EDM_DRO] milling circuit boards Dennis Schmitz 2006-10-06 08:35:32 UTC Re: [CAD_CAM_EDM_DRO] milling circuit boards KM6VV 2006-10-06 08:41:46 UTC RE: [CAD_CAM_EDM_DRO] Re: milling circuit boards Tony Jeffree 2006-10-06 08:56:57 UTC RE: [CAD_CAM_EDM_DRO] milling circuit boards turbulatordude 2006-10-06 09:22:24 UTC Re: milling circuit boards Jack Coats 2006-10-06 09:30:54 UTC Re: [CAD_CAM_EDM_DRO] milling circuit boards caudlet 2006-10-06 09:42:26 UTC Re: milling circuit boards Richard 2006-10-06 09:49:46 UTC Re: milling circuit boards caudlet 2006-10-06 10:02:28 UTC Re: milling circuit boards [source for collets and bits] paultitchener 2006-10-06 10:17:35 UTC Re: milling circuit boards [source for collets and bits] Andrew Werby 2006-10-06 11:35:11 UTC Re: milling circuit boards Bill Davis 2006-10-06 11:49:59 UTC Re: [CAD_CAM_EDM_DRO] Re: milling circuit boards [source for collets and bits] Jack Coats 2006-10-06 13:06:43 UTC Re: [CAD_CAM_EDM_DRO] Re: milling circuit boards [source for collets and bits] KM6VV 2006-10-06 14:39:38 UTC RE: [CAD_CAM_EDM_DRO] milling circuit boards Mark Vaughan 2006-10-07 05:58:22 UTC RE: [CAD_CAM_EDM_DRO] milling circuit boards William Perun Sr 2006-10-07 08:25:57 UTC Re: milling circuit boards deepcavity 2006-10-07 18:41:47 UTC Re: [CAD_CAM_EDM_DRO] Re: milling circuit boards deepcavity 2006-10-07 19:17:39 UTC Re: [CAD_CAM_EDM_DRO] milling circuit boards Bill Davis 2006-10-07 20:46:34 UTC Re: [CAD_CAM_EDM_DRO] milling circuit boards optics22000 2006-10-08 12:39:04 UTC KDN high speed spindle, was Re: milling circuit boards Steve Blackmore 2006-10-08 18:06:52 UTC Re: [CAD_CAM_EDM_DRO] KDN high speed spindle, was Re: milling circuit boards Chris Horne 2006-10-09 11:29:29 UTC KDN high speed spindle, was Re: milling circuit boards