* Machine shop: Alan was trying out a new toy he got, a drill bit sharpener. He was making good progress.
I saw it during the work weekend, as a person who has dulled a drill and had to hand sharpen it to finish some job or other, I can see the usefulness of it. Post a picture and explain the range of sizes it can sharpen to a factory edge for the others members. A great item to have in any shop.
M. Nix
Hi Mike,
The machine is a Sellers 6G drill grinder, and can sharpen drill bits from 5/16" to 3" in diameter, but there are other sharpeners which are better suited to drill bits below 3/8". I don't have an exact date on when it was built, but I believe it to be pre 1950's It is essentially an overhead line-shaft machine which was "redesigned" by Sellers when individual motors started to power machinery. The "redesign" consisted of bolting a 1.25" plate to the bottom of the already heavy machine, and plunking a motor with a flat-belt pulley on the new base. In converting it to run on single-phase power, I moved it to v-belt drive. I purchased it from a tool collector in western Mass. and brought it home with my "rig". At this point, the machine is essentially on-loan to the museum.
It should be noted that this is not a tool which is available for general use by shop volunteers. Due to the finesse required to sharpen a bit without ruining the bit or the grinding wheel, it should only be used by volunteers who I have trained. I hope to very soon have a small cadre of shop volunteers trained on it to be able to help keep our stock of drill bits in good shape!
I actually don't have any recent pictures of the machine, and I haven't asked Stewart if I can borrow his pictures from Facebook- so here's a similar 6-G. There are some differences in guarding and the electrical controls, but the important parts are the same. It's a really neat machine.
And so that I can continue to show off just how much my little Focus can do, this was at the NH state line, parking with the other "rigs"
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