Search found 26 matches

by David2011
Sat Apr 27, 2019 4:51 pm
Forum: Gunsmithing
Topic: Hardening a gunbox
Replies: 27
Views: 42772

Re: Hardening a gunbox

A 500 or even an 800 pound safe is very easy to move if it isn't bolted to the floor. All it takes is a pry bar and a bag of golf balls. TIp the safe back, place a few golf balls under it and keep putting golf balls in its path. A five year old could push it. I moved my 800 pound safe this way twice...
by David2011
Sat Apr 27, 2019 2:15 pm
Forum: Gunsmithing
Topic: Best choice of steel for color case hardening?
Replies: 10
Views: 20733

Re: Best choice of steel for color case hardening?

I was a student and later an instructor at a community college gunsmithing course. Some of the students were highly skilled and built some beautiful rifles that had color case hardened receivers. The method they used after prepping the metal was to make blocks to support tangs and other thin parts t...
by David2011
Sat Apr 27, 2019 1:51 pm
Forum: Gunsmithing
Topic: plugging a barrel for bluing ....
Replies: 38
Views: 61414

Re: plugging a barrel for bluing ....

Accelerated rust bluing involves boiling the metal in between applications of the bluing solution as opposed to hanging it in a humudity cabinet they way they did with the original rust bluing process. The only time I've plugged barrels is when Parkerizing and then it was with wooden plugs. (I woul...
by David2011
Sat Apr 27, 2019 1:41 pm
Forum: Lathes
Topic: Soft Start for Lathe?
Replies: 54
Views: 33740

Think I found the problem

Oops! I typed the previous response earlier today and then failed to submit it. Some time later, I worked with the lathe going through everything I could think of before pulling the bearing caps. With the tumbler disengaged there was not much noise coming from the lathe. I cleaned and lubed the gear...
by David2011
Sat Apr 27, 2019 1:22 pm
Forum: Lathes
Topic: Soft Start for Lathe?
Replies: 54
Views: 33740

Re: Soft Start for Lathe?

Russ, You made a light come on for me. I never understood exactly what the term 'gear head" meant. I had confused quick change and gear head just because I didn't know the correct terminology. I have only had a little instruction on lathes and mills; mostly self taught. Yes, it is clear now. That is...
by David2011
Fri Apr 26, 2019 1:46 pm
Forum: Lathes
Topic: Soft Start for Lathe?
Replies: 54
Views: 33740

Re: Soft Start for Lathe?

Generally the lathes I’ve worked on have a fairly free spinning chuck. Some of my old time lathes, with split bearings, sometimes actually stall the motor if I tighten the bearing caps down to much. Puts excessive pressure on the head stock shaft, and it binds up. Even then, I can’t recall a time w...
by David2011
Fri Apr 26, 2019 1:00 pm
Forum: Lathes
Topic: Soft Start for Lathe?
Replies: 54
Views: 33740

Re: Soft Start for Lathe?

I don't suppose you have the wrong start cap? A capacitor sucks a lot of juice when you hit the switch. I know the history of this lathe since it was 4 years old and it's 41 years old now. I'm pretty sure the cap is original. Good because it would be the right size. Bad because it's 41 years old. I...
by David2011
Thu Apr 25, 2019 9:30 pm
Forum: Lathes
Topic: Soft Start for Lathe?
Replies: 54
Views: 33740

Re: Soft Start for Lathe?

On a 4th of July weekend a few years ago, my house A/C quit cooling. A quick analysis showed it was because the outside unit (compressor) was not powered because the breaker popped. Reset the breaker, unit started and cool air returned. But after the unit stopped and tried to restart later, the bre...
by David2011
Thu Apr 25, 2019 9:27 pm
Forum: Lathes
Topic: Soft Start for Lathe?
Replies: 54
Views: 33740

Re: Soft Start for Lathe?

I just checked mine, and with the main drive disengaged (gear head H/N/L in N), grabbing one jaw of an 8" chuck and giving it a firm (not hard) throw, I get more than 1.5 turns without trying hard. But I don't believe your's is a clutch, nor is mine. You can't really compare a direct drive with a c...
by David2011
Thu Apr 25, 2019 4:38 pm
Forum: Lathes
Topic: Soft Start for Lathe?
Replies: 54
Views: 33740

Re: Soft Start for Lathe?

To clarify on the friction of the spindle, when I see the clutched medium lathes turned by hand they look to be nearly friction free. Mine has some drag.
by David2011
Thu Apr 25, 2019 4:35 pm
Forum: Lathes
Topic: Soft Start for Lathe?
Replies: 54
Views: 33740

Re: Soft Start for Lathe?

If its a single phase motor you could be having the start switch sticking once in a while. The start windings draw a good bit of amperage that is NOT included in your motor nameplate ratings. It could also be a start winding beginning to fail. The high inrush and large magnetic fields can jiggle an...
by David2011
Thu Apr 25, 2019 3:40 am
Forum: Lathes
Topic: Soft Start for Lathe?
Replies: 54
Views: 33740

Re: Soft Start for Lathe?

Pete, Glenn, Thank you for excellent responses. They've gotten me thinking. Just came in from the patio binge watching a TV series. I'm currently in SE New Mexico and it's just getting warm enough to sit on the patio in the evenings if the wind is light. Retired so time of day is less important. The...