Search found 257 matches

by choprboy
Sat Mar 28, 2020 8:38 pm
Forum: Milling Machines
Topic: Uneven cut
Replies: 8
Views: 371

Re: Uneven cut

Are you climb milling or conventional milling? Also, are you maintaining a constant traverse speed or stopping/starting? Looks like climb milling with a stop/start and a bit of backlash in the X.
by choprboy
Tue Feb 25, 2020 3:08 pm
Forum: Buy, Sell, Trade, Wanted, Free!
Topic: Wanted - threaded steel balls, 5/8-11
Replies: 9
Views: 1182

Re: Wanted - threaded steel balls, 5/8-11

You might try a local wrought iron fencing/railing company. I know IMS has solid steel balls in their fencing selection that you could drill/tap to thread on.
by choprboy
Sun Feb 16, 2020 1:57 am
Forum: General Discussion
Topic: Diacro Model 24 (24" x 16ga steel) finger brake - making fingers
Replies: 2
Views: 863

Re: Diacro Model 24 (24" x 16ga steel) finger brake - making fingers

My HF grade 52"x16ga finger brake appears to just uses 3/4" thick (as I recall) fingers that appear to be a plain cold rolled steel (probably 1018 or similar). The fingers are not hardened.
by choprboy
Sun Feb 16, 2020 12:39 am
Forum: General Discussion
Topic: Parting tool used by Stefan Gottswinter
Replies: 15
Views: 2119

Re: Parting tool used by Stefan Gottswinter

It's similar to a Tool-Flo grooving/parting insert and Walter makes a Cut MX system, a triangular/quadangular insert that fits in an indexing slot toolholder. I wasn't familar with what Stefan's specific system was, I figured it was some small specialty German producer, but searching around a bit I ...
by choprboy
Sun Feb 02, 2020 6:20 pm
Forum: General Discussion
Topic: Center Drill Tip Broken Off In Hole
Replies: 34
Views: 3904

Re: Center Drill Tip Broken Off In Hole

Another thing you can try (if the hole still needs to be enlarged) is to use a small cutter-cutting endmill (or a stubby stout drill with pretty flat face) and drill 3 holes around the perimeter of the broken off carbide tip. Then you can usually use a small punch or screwdriver blade to loosen the ...
by choprboy
Fri Jan 24, 2020 12:39 pm
Forum: General Discussion
Topic: Removing End Of Broken Pipe From Pressure Pot Manifold
Replies: 28
Views: 2698

Re: Removing End Of Broken Pipe From Pressure Pot Manifold

I agree with warm, I would try first without heating. Also, you can try drilling out the core with slightly larger than the pipe bore sized drills to thin out the thread profile. This will release compression in the stuck piece and make it easier to remove. If you really want to heat and don't want ...
by choprboy
Thu Nov 28, 2019 5:29 pm
Forum: Buy, Sell, Trade, Wanted, Free!
Topic: FS: Assorted micrometers
Replies: 2
Views: 1253

Re: FS: Assorted micrometers

2) Starrett #231 0-1" .0001" micrometer - SOLD
by choprboy
Wed Nov 27, 2019 3:08 pm
Forum: Buy, Sell, Trade, Wanted, Free!
Topic: FS: Assorted micrometers
Replies: 2
Views: 1253

Re: FS: Assorted micrometers

6) Mitutoyo 2-3" .0001" micrometer - SOLD
by choprboy
Sat Nov 23, 2019 10:47 pm
Forum: Buy, Sell, Trade, Wanted, Free!
Topic: FS: 8" D1-6 3-jaw chuck
Replies: 0
Views: 1664

FS: 8" D1-6 3-jaw chuck

I bought this to use for a welding chuck, but it was always far too nice for that and I never got around to building the positioner. Too much stuff and need to clean out the shop... Poland made model PUUm-S8D6ZD - 8" 3-jaw chuck with a D1-6 6-pin camlock mount. Reversible/replaceable jaws, about 2-1...
by choprboy
Sat Nov 23, 2019 10:34 pm
Forum: Buy, Sell, Trade, Wanted, Free!
Topic: FS: Assorted micrometers
Replies: 2
Views: 1253

FS: Assorted micrometers

Too much stuff and trying to clean up the shop... 1) Starrett #230 0-1" ,001" micrometer - $25 Ratcheting thumb screw, a bit dirty but works fine. 2) Starrett #231 0-1" .0001" micrometer - $25 ****SOLD**** Ratcheting thumb screw, a bit dirty but works fine 3) Starrett #436 2-3" .001" micrometer - $3...
by choprboy
Fri Nov 22, 2019 1:19 pm
Forum: Lathes
Topic: 5C collet chuck
Replies: 10
Views: 2379

Re: 5C collet chuck

I think you want to search for a "plain back 5c chuck". A bunch of different manufacturers make the; Bison, TMX, etc., also the cheaper China versions. There is also a cheap round cylinder 5c chuck (I have one) that can be held in a standard 3/4 jaw chuck. Examples: https://www.kbctools.com/itemdeta...
by choprboy
Sun Nov 10, 2019 6:35 pm
Forum: General Discussion
Topic: Smearing On Cutter Block After Using Evapo-Rust
Replies: 13
Views: 2846

Re: Smearing On Cutter Block After Using Evapo-Rust

Rust removers generally convert "rust", Fe2O3, into other softer/dissolvable (usually black) iron oxides, iron sulfate, and iron phosphates. Those may leave a staining on the surface, but should hopefully should come off with more clean rust remover, a light acid (though that may cause an immediate ...