On Tuesday, April 05, 2011 11:45:11 AM Roland Jollivet did opine: > I looked at similar some months back. > > > http://precisionmicro.com/6/processes/photo-etching-|-photo-chemical-etc > hing-|-chemical-milling-|-metal-etching > > These guys wanted �1000 to get started. Still not sure how many discs I > would get for that. > > And an american crowd; > http://www.spgveco.com/precision+metal/products/precision+metal+parts > > quoted; > 10 $66.65/ea > 100 $6.65/ea > 500 $4.65/ea > 1000 $2.80/ea > > > And a time tooling charge of $665.00 > > So, all in all, unless you're pretty serious about it, it'll cost a bit. > > But I'd be curious to see what pricing you get. I tried hard to source > 'stock' discs, but they would have none of it. > > Regards > Roland > Are y'all forgetting there is a bit of (I think python) code on the wiki that will carve what should be quite serviceable encoder disks? I downloaded it 2-3 years ago, and modified it to make a disk that fit between the bearing locknuts on my 7x12, but blew up my stock of opto stuff I was going to use, mainly because the things don't have pin numbers for squat on them and the led's didn't like the reverse bias, crowbarring the 5 volt wall wart I was going to power them with.
Someday when I find my round tuit, I'll get back to that project. I will of course be in the market for an interface to that spindle motors speed/direction controller by then. At the time I made it, IIRC it took my little mill about an hour to carve/drill it, in a small sheet of about 20 ga. alu. > http://precisionmicro.com/6/processes/photo-etching-|-photo-chemical-etc > hing-|-chemical-milling-|-metal-etching > > On 5 April 2011 13:27, andy pugh <[email protected]> wrote: > > I just found this website: > > > > http://www.photofab.co.uk/index.php/products/optical-encoder-discs-and > > -actuators/ > > > > I don't know what the pricing would be like, but that could be a > > perfect way to add a spindle encoder, if combined with > > > > http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getP > > roduct&R=1711830 or > > > > http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getP > > roduct&R=0196987 (I also found a tiny surface-mount one a while ago, > > but can't see it now) > > > > -- > > atp > > "Torque wrenches are for the obedience of fools and the guidance of > > wise men" > > > > > > ---------------------------------------------------------------------- > > -------- Xperia(TM) PLAY > > It's a major breakthrough. An authentic gaming > > smartphone on the nation's most reliable network. > > And it wants your games. > > http://p.sf.net/sfu/verizon-sfdev > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------ > ------ Xperia(TM) PLAY > It's a major breakthrough. An authentic gaming > smartphone on the nation's most reliable network. > And it wants your games. > http://p.sf.net/sfu/verizon-sfdev > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) <http://tinyurl.com/ddg5bz> <http://www.cantrip.org/gatto.html> You can't cheat the phone company. ------------------------------------------------------------------------------ Xperia(TM) PLAY It's a major breakthrough. An authentic gaming smartphone on the nation's most reliable network. And it wants your games. http://p.sf.net/sfu/verizon-sfdev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
