05-09-2012, 09:28 AM
(05-09-2012, 07:45 AM)DaveH Wrote: Dave,
Very nice, and very nicely made
Just wondering if you could explain the technique you use to put the radius on that flat bar
DaveH
Hi Dave,
That is an old trick I picked up some where.
You just hold it with your hand or if it's small like a model engine conrod with a pair of vise grips. I always have my fingers either side for a quick release if something goes wrong, so don't grab the part with your fingers wrapped around because if something goes wrong your fingers will be jambed between the part and the vise.
I usually chop off the corners with the band saw at 45 deg to make it quicker, and then just feed a little at the time. Never climb mill doing this, or it will walk on it's own and can do damage to either you or the cutter, and make sure you have a firm grip. If you don't think you can hold it use a tool or a jig attached to it.
Taking little bites there is not much force, so just take it steady and you will be fine.
Try it one day with a longer bit of scrap flat bar just to see. All you need is a pin or bolt clamped in the vise near the end of the jaw and a matching drilled hole in centered in the flat bar.
Dave