7 opto transmitter boards - On order!



www.greatlakesmodular.com/products/tpcb/tpcb.html

Hi RGP,

Thank you to everyone who has bought a board (or two!), I have _sold
out_ of the first run. Not to worry, I have another run on order and
should be ready by early next week.

At this time, no changes have been made. I wasn't able to make a
large enough run to do soldermask just yet, hopefully if this makes it
to a third run, I'll be able to add it.

Some have mentioned putting larger holes in for grommets. Well
there's two problems with doing so. First, the 0.152 sized hole is
typically the largest sized hole that can be done on proto boards
without getting into custom drill sizes which usually carry extra
charges. Also, it's easier to make the hole larger (with a drill) than
to make it smaller. I would rather leave it up to the end user to
decide.
Also, if someone can measure the hole size on boards with grommets,
I will add the information to the manual so that anyone that wants to
will know exactly what sized drill bit to use.

Thanks!

Tony

.



Relevant Pages

  • Re: whats the best way to do this?
    ... we will drill on a big manual. ... It will then go to the cnc lathe for od work using ... concentric after the hole by chucking on the i.d. ... Anyone have some suggestions for plugs with centers that "dlevy" ...
    (alt.machines.cnc)
  • Re: Stainless Steel Project Help(part 2)
    ... They can be driven out as long as the hole goes all the way ... final diameter and cut them to length. ... have to investigate further what I'll need to drill that 1/8" diameter ... hole through rod and sleeve. ...
    (rec.crafts.metalworking)
  • Re: Antique fountain: Drilling holes in brittle materials
    ... Using a brass tube is a good way if the hole is large enough for what ... chuck that end in to the drill chuck or an adapter I made that will ... Best for drilling brittle materials is a spade drill. ...
    (rec.ponds)
  • Re: Reply: Drilling a heap of 25mm / 1" holes in sheet metal
    ... I don't know that a 3/8" impact wrench would operate the punch very well though. ... Then you assemble the punch thru the hole, then you need to crank it down fully to punch the 1" diameter and shear the slug free of the box. ... There will still be a sharp edge where the male die/punch part passes thru the metal, and although the punches don't usually cause much distortion, the hole edge might be flat, so a step drill might not work as well for deburring the hole. ... If your drill press would stall while attempting to use a step drill, rotabroach or hole saw up to 1", then you're probably faced with using a bolt-type punch. ...
    (rec.crafts.metalworking)
  • Re: Putting a hole in a frame rail.
    ... I've used the "two people with a pipe and chain" method. ... Run the pipe through the 'D' handle on a 1/2" 200rpm drill. ... I center punched, drilled a little hole, enlarged it to a 3/8 hole, then used a "bridge reamer" to make it a 5/8" hole. ...
    (rec.crafts.metalworking)