Blake Mantel wrote:

Thanks for holding in there!
The mill was finally fixed, and I had some free time too. So the ACRE motor mount pockets are done!
Looks very nice, but I did not bring home the digital camera this weekend from work. ;(

I think yours will be the only one made purely from ball end mills, too darn slow. So any future ones will use flat bottom mills to finish most of the pocket and then a single pass with a ball mill to add in a radius on the periphery. But the small ridges left behind form the ball mill do look quite trick, though.

It is still clamped up, so do you want any other holes/etc. put in? ( Ever make a IGES or DXF file with just the points for the drill holes and nothing else?)

The only features present are the center 1" drill hole and the ten pockets, nothing else.
Blake

That's fine Blake. Jerry Hey is also working on this project. Are you interested
in doing it on a commercial basis?
Paul Lamar

Sure. The hardest one is the first one!!!
I will grab the camera tomorrow and get a picture of it.

But do we have a final answer on the true bolt hole locations (barring CAD errors - other people will not have your drilling jig!!)? Counter bore or not around the center 1" hole. Starter holes and cutout? Just leave it as a rectangle, or contour the plate?

Set of drill holes would not add much time to the part, starter cutout a bit more time, top and bottom rough contours would take longer. The counter bore (if needed) would be the longest single amount of time due to the plate would need to be flipped and reset up.
Blake

The last word from Tracy:
------------------------------------------------------------------------------
There is a 1.501" counterbore .3" deep for the input shaft oil seal on the
engine side of the adapter plate.  That is the only counterbore for the
center hole on current production plates.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com
----------------------------------------------------------------------------

Leave the plate as is for now Blake. I can cut it on the bandsaw.

We still don't have a final answer on the bolt hole locations. Jerry
has my drilling jig and is looking into it.

What is happening there Jerry?

Paul Lamar

 
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