⏣ General Metalworking

Tapping a hole in aluminum?

Lots of questions about tapping this. 2017 aluminum collar/rod 64 mm length (about 1" will be used) 22 mm outer diamete...

13 comments posted 15yrs

posted by jdoe

13 comments posted 15yrs posted by jdoe

A Planar Geometry Problem

Consider two circles, of arbitrary diameter, and a point, all on a plane. I want to inscribe an arc that is tangent to...

16 comments posted 15yrs

posted by tim

16 comments posted 15yrs posted by tim

Tungsten-cobalt alloys extremely carcinogenic?

A little distraction from our "show us Obama Bin Laden's death certificate" battles. I was reading this article. http:/...

25 comments posted 15yrs

posted by ignoramus18758

25 comments posted 15yrs posted by ignoramus18758

Electrical code question

My ex is in the process of buying a house. When I looked at the place I noticed that the Romex cables coming from the m...

13 comments posted 15yrs

posted by rogershoaf

13 comments posted 15yrs posted by rogershoaf

aircraft newsgroup?

A friend has been appointed administrator of his late brother's estate. Among the items in the estate are 2 20' trailer...

9 comments posted 15yrs

posted by engineman1

9 comments posted 15yrs posted by engineman1

Maximat Compact what model do i have

I have an used 1960's ? Maximat Compact No# on tag 6803002 Made in Austria Would like to find out what model it is. Bes...

4 comments posted 15yrs

posted by my1940coupe

4 comments posted 15yrs posted by my1940coupe

FYI: Amazon & Reid Supply

There is a particular little coated ball end mill from Reid Supply that I have grown to like for certain applications....

2 comments posted 15yrs

posted by none

2 comments posted 15yrs posted by none

Anybody here machine 17-4ph HH-1150?

So I'm starting a job machining 174-ph HH-1150. I've found lotsa info on condition H1150 but not much on HH1150. I know...

10 comments posted 15yrs

posted by tesnow

10 comments posted 15yrs posted by tesnow

What are these?

They look to be 1/16" and 3/32". Flattened surface like a sewing machine needle, but other end does not have a hole. Le...

9 comments posted 15yrs

posted by pittmanpirate

9 comments posted 15yrs posted by pittmanpirate

Ping Gunner: High speed spindle

Keep a lookout for a spindle that will do 10krpm. I need to spin a 1/32" x 6" cut-off disk to trim endbrushes. My home-...

7 comments posted 15yrs

posted by w

7 comments posted 15yrs posted by w

Best Epoxy for build-up/repair?

got a worn shaft & its coupling bushing that needs a slight build -up & re-machine. JB weld? or ? There's allot of choi...

5 comments posted 15yrs

posted by milgil

5 comments posted 15yrs posted by milgil

Another R-22 heat pump update

Thanks all for the remote troubleshooting! The cap has leads for the fan, compressor and a common. I can't find my VTVM...

16 comments posted 15yrs

posted by w

16 comments posted 15yrs posted by w

tool/yard sale gloat

I picked up a really neat piece today, a Lufkin METAL folding 48" measurer. I've seen lots of wood, but never a metal o...

12 comments posted 15yrs

posted by pittmanpirate

12 comments posted 15yrs posted by pittmanpirate

R-22 Heat Pump update

I was able to get a cylinder of R-22 and the right manifold and hoses and finally it was good enough weather to check o...

30 comments posted 15yrs

posted by w

30 comments posted 15yrs posted by w

OT:For Sale

I have a brand new N12242408 Weigman enclosure I purchased for a customer, after installing the handle for the disconne...

4 comments posted 15yrs

posted by debco99

4 comments posted 15yrs posted by debco99