Gallery, Projects and General > Gallery
Harold Hall's precision grinding table
xo18thfa:
He's the thread from "wheeltapper" on his table
http://madmodder.net/index.php?topic=2656.0
Hey Wong: I would just go with Mr Hall's design for the table thickness. I don't recall it now, but the 1/4" (6mm) I used is plenty good.
Bob
wongster:
Thank you, Bob,
I just read wheeltapper's. Nice...
The 3D model was done with the table at 6mm, per the plan in the book. The description of making the tap holes sounds difficult to me. I'll give it a shot. 2 projects to finish at the moment for someone. This will be the 3rd "must do" for myself.
The big countersunk holes are my concern. Tried on aluminium and steel. Chatter like no tomorrow.
Regards,
Wong
wheeltapper:
Hi these are what I use for countersinking.
they leave a lovely finish.
they came from Machine Mart but I don't suppose you have any of them.
Roy
wongster:
I have 2 Dormer's. The only 2 I can find that can fit with into one of the ER16 collets. One 82 degree and the other 90.
Is there a trick to using countersink?
Just did this a few weeks back.
This is the column bed of the Sherline mill. After upgrading the major components to achieve bigger work envelope, the leftovers are sufficient to be reassembled with some small purchases to make a manual mill. Still waiting for the gibs to be sent to me. The process was uploaded to my blog: http://wongstersproduction.blogspot.com/2011/05/manual-mill-assemblying-from-leftovers.html
Regards,
Wong
Bogstandard:
Slow speed and very fine feed is the recipe that I use.
I find that most countersink tools will chatter if run too fast. They usually have very little clearance on them, so the metal swarf hasn't time to get away before the next cutting face is upon it.
Bogs
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version