Re: Nice results From Dan's kits

This is how I made my heatsinks out of 1 1/2" aluminum angle stock.

http://www.geocities.com/waynehill_98/Stepboard.JPG

Wayne






--- In CAD_CAM_EDM_DRO@egroups.com, "Donald Brock"
<don.pat.brock@p...> wrote:

> We had some 1.250" x 1/2 " aluminum bar and some 1/8" aluminum

sheet

> aroundthe shop. The heat sink/mounting brackets are actually made
> from 3 separate peices. The bottom plate screws to each heatsink

with

> 3 screws per side. I used 6-32 flat head screws but 5-40's would

have

> probably been the wiser choice. The circuit board is screwed to

each

> heatsink with nylon screws and a nylon spacer underneath the board.

I

> have more detailed pictures and cad drawings for these if any one
> wants them. There is a small 3/16 W X 1.32 Dp clearance cut into

the

> heatsink next to each screw as there is a ground circuit on the

edge

> of the board at each screw. The clearance cut keeps circuit ground
> from coming into contact with chassis ground.
>
> Don
>
>
> --- In CAD_CAM_EDM_DRO@egroups.com, Matt Shaver <mshaver@e...>

wrote:

> > Donald Brock wrote:
> >
> >
> > > I just finished assembling two more of Dan's 5 Amp drives and I
> have
> > > been very impressed with the professional looking results that
> have
> > > been obtained.
> >
> > That's a nice job! Is that aluminum channel, or did you mill

those

> > heatsinks from solid blocks?
> >
> > Matt