On Tuesday 24 July 2018 22:25:51 Przemek Klosowski wrote: > I always wondered if a small LCD projector would be enough to expose a > typical photosensitive PCB--they can be had for not much more than > $100, and are surprisingly bright at small distance (of course they > aren't worth much for what they are solf for, displaying onto large > walls:) If that worked, it would be easy and fast (no scanning, just > project your gerbers) > I don't see why not, IF you could find one with a truely rectilinear lens. Most of those that I have seen have had as much as 5% pincushion, and that along the edge of a board where you intended to fit say a 50 pin interface connector, could easily be a whole pin spacing out of whack and you'd never get a connector to seat in holes that far off the grid pattern. Locate it on the grid might work as the smaller parts in the middle probably wouldn't care that much if the footprint was shrunk that 5%. And a long connector would flex enough to still mate with its opposite gender. Bigger 80 pin square tsop stuff would care though. Good rectilinear Lenses like that are easily way more than the whole projectors $ though. > On Tue, Jul 24, 2018 at 10:07 PM John Dammeyer > <[email protected]> > > wrote: > > I like the idea of using a small laser for exposing the PCB. I > > already have > > a CNC router with roller skate bearings (it doesn't yet use the > > linear bearings and rails I bought to upgrade it). Might be nicer > > than milling the > > PCB although still need to drill holes too. > > > > John > > > > > -----Original Message----- > > > From: Dan Bloomquist [mailto:[email protected]] > > > Sent: July-24-18 6:53 PM > > > To: Enhanced Machine Controller (EMC) > > > Subject: [Emc-users] Fwd: Re: CAD for LinuxCNC > > > > > > John Dammeyer wrote: > > > >> I've been using Fusion 360 for a few years now. The license is > > > >> $300/year. They have a post processor for linuxcnc so the CAM > > > >> directly generates g-code that I can take out to the machine. > > > >> As an example, I had to cut a couple of these from 303: > > > >> <http://lakeweb.net/CNC/images/200-024.png> > > > > > > > > Hi Dan, > > > > Sweet. Are you running a MAC or PC with windows for Fusion? > > > > John > > > > > > Hi John, > > > Thanks. This is my wife's and my business. > > > <https://reserveanalyst.com/> > > > > > > My desk machine, where Fusion lives, is windows 7. Linux is on my > > > mill and I have a couple of beaglebone blacks. > > > > > > But I have to use windows as it is my day job. As far as Apple > > > goes, I was all about it back in the Apple I and II days. But they > > > prioritized when they went to Mac, so I lost interest in Apple. > > > Now that there is Linux, who needs apple :) > > > > > > Best, Dan. > > > > > > P.S. I like this: > > > <https://github.com/hzeller/ldgraphy> > > > I would build the machine differently. But great thing is, you can > > > use the same machine to do a photo sensitive solder mask as a next > > > step! > > > > -------------------------------------------------------------------- > >-------- -- > > > > > Check out the vibrant tech community on one of the world's most > > > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > > > _______________________________________________ > > > Emc-users mailing list > > > [email protected] > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > -------------------------------------------------------------------- > >---------- Check out the vibrant tech community on one of the world's > > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > ---------------------------------------------------------------------- >-------- Check out the vibrant tech community on one of the world's > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users
-- Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
