Search found 1618 matches
I lived in New York City back in the 50's. There was a chemical supply house called Winns on west 23rd St. I used to go there and buy Sulphuric acid in one pound containers and carry it home on the subway. They sold every chemical that was available with no questions asked. I don't think it's allowe...
“NO CAR RUNS, NO AIRCRAFT FLIES AND NO HIP REPLACEMENT IS FITTED BY A DOCTOR WITHOUT PRECISION TOOLS HAVING PREVIOUSLY BEEN IN USE.” As precision machinist’s, we’re the people that make things. Things that make a difference in everyone’s quality of life. And who is is it that makes the tools that he...
I have been using Dykem blue and find it doesn't cover evenly and when dry, doesn't allow for a clean scribe. The blue seems to be thick in one place and too thin in others. The can is about 3 years old and I haven't shaken the can. I'm thinking it may be too thick, in which case, I will try adding ...
Great idea, but how about removing a broken 2-56 tap from steel or aluminum? Will the alum solution work on aluminum? Obviously it won't work on steel, but what will? Will the carbide drill work on removing from steel/aluminum without distorting the hole?
take the OD of the thread and subtract 1 pitch for the tap drill diameter 1/4-40 tap drill = .25 - 1/40 7/32 is close enough since I don't have a 1/40th of an inch drill worked for me for 50+ years Thanks Bill; What a great tip. At 84, I'm still finding new (old ideas). I checked it out with a few ...
- Sat Oct 06, 2018 8:39 am
- Forum: Riding Scale Railroading
- Topic: Electric motors
- Replies: 4
- Views: 610
Recently, I have been turned on to brushless/coreless motors. I hear they have high torque at low rpm's They run at very high speeds, like 10,000rpm, so a good reduction gear set is needed. I didn't know that these are the same motors used on drones, computer disc drives, printers and RC cars and pl...
- Fri Oct 05, 2018 8:32 pm
- Forum: General Discussion
- Topic: oilless compressors
- Replies: 16
- Views: 968