⏣ General Metalworking

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made a battery adapter today.

I have a couple of older Bosch tools - a drill and a reciprocating saw. These run on 18V NiCd or Nimh battery packs. My...
13 comments posted 6yrs
posted by rangerssuck
13 comments posted 6yrs posted by rangerssuck

design descisions for internal tube expander

I'm thinking of making a tool to be slid up inside a bicycle frame down tube that would expand and push out dents from...
8 comments posted 6yrs
posted by me
8 comments posted 6yrs posted by me

springs and bolts in acid - hydrogen

Saw this post and thought - why not ask the experienced pragmatic folk? > >Sadly these calipers emerged from an overnig...
3 comments posted 6yrs
posted by null
3 comments posted 6yrs posted by null

Caliper spring broken (2025 Update)

I've been cleaning up a lot of older steel tools using citric acid, which does a nice job. Sadly these calipers emerged...
4 comments posted 6yrs
posted by no.spam
4 comments posted 6yrs posted by no.spam

NRA knives made in China

China doesn’t have a NRA it’s embarrassing
3 comments posted 6yrs
posted by 0f8503901d844703eea1acecb7a4938a_2655
3 comments posted 6yrs posted by 0f8503901d844703eea1acecb7a4938a_2655

NRA knives made in China

China doesn?t have a NRA it?s embarrassing
4 comments posted 6yrs
posted by Teresa
4 comments posted 6yrs posted by Teresa

How to run a lathe in 1914

This show how little manual lathe operation has changed in a century: http://vintagemachinery.org/pubs/1617/3789.pdf
0 comments posted 6yrs
posted by muratlanne
0 comments posted 6yrs posted by muratlanne

Labor Savin' update

Well , I got the winch mounted on the top beam of the jib crane , and added a 2 3/4" pulley for the cable above the bea...
28 comments posted 6yrs
posted by Snag_one
28 comments posted 6yrs posted by Snag_one

Clamping drill chuck?

You know, like the chuck on a metal lathe but smaller. A simple attachment for a cordless drill so that it can hold lar...
1 comments posted 6yrs
posted by always.look
1 comments posted 6yrs posted by always.look

Labor savin' devices

Time marches on ... and with it my desire to work any harder than I absolutely have to . There is wood involved in this...
62 comments posted 6yrs
posted by Snag_one
62 comments posted 6yrs posted by Snag_one

need cap for residential A/C service valve

I topped off the R-22 in my ancient home A/C yesterday, and when putting it all back together, I dropped the cap for th...
5 comments posted 6yrs
posted by elson
5 comments posted 6yrs posted by elson

Uses of fatigue and creep?

Hi folks, I'm working on a book and am taking a close look at the mechanisms which damage and destroy machines: wear, c...
6 comments posted 6yrs
posted by christopher.tidy
6 comments posted 6yrs posted by christopher.tidy

Submerged softwood?

Hi folks, I know this isn't quite metalwork, but is it a shop-related question and nothing to do with politics, so here...
30 comments posted 6yrs
posted by christopher.tidy
30 comments posted 6yrs posted by christopher.tidy