Search found 1002 matches

by dly31
Mon Apr 11, 2016 9:22 pm
Forum: General Discussion
Topic: 3 phase convertor failure
Replies: 70
Views: 7835

Re: 3 phase convertor failure

It seems to me that for the motor to brake rather than accelerate when power is applied, some coils have to be connected in reverse to the others. It is not just a matter of connecting the coils in the proper configuration, you have to connect the proper ends of the coils. This should be the case if...
by dly31
Mon Apr 11, 2016 9:07 pm
Forum: General Discussion
Topic: OT metric threads
Replies: 16
Views: 2802

Re: OT metric threads

You could just as well make a pencil mark on the ways before disengaging the half nuts. Your re-positioning only has to be accurate enough to hit the right thread on the leadscrew (+/- 0.125" on an 8 TPI screw).
by dly31
Wed Feb 17, 2016 9:54 pm
Forum: The Junk Drawer
Topic: Need tp locate small Pentagon female bits or sockets
Replies: 14
Views: 4011

Re: Need tp locate small Pentagon female bits or sockets

I suggested that because I have heated worn out Phillips screwdrivers and hammered them into new screw slots and it restored the tip shape pretty well.
by dly31
Wed Feb 17, 2016 9:27 pm
Forum: Lathes
Topic: Don't know how to thread on this lathe
Replies: 61
Views: 11290

Re: Don't know how to thread on this lathe

I am happy that you found the way to change the leadscrew drive on the right side. I thought for a long time that there had to be something in that area that was missing. I believe all that remains is to get the gears (and the metric shaft) on the left side correct. I think I had that figured out at...
by dly31
Tue Feb 16, 2016 10:46 pm
Forum: Lathes
Topic: Don't know how to thread on this lathe
Replies: 61
Views: 11290

Re: Don't know how to thread on this lathe

After watching the video again, I have a new idea. I believe the lower shaft cap on the right side has a piece behind it which will connect the upper shaft to that unknown function gear. It may be a rotating part of the cap or it may be a separate part. If it is a separate part, remove it and instal...
by dly31
Tue Feb 16, 2016 9:53 pm
Forum: Lathes
Topic: Don't know how to thread on this lathe
Replies: 61
Views: 11290

Re: Don't know how to thread on this lathe

Your movies have helped my understanding somewhat. Keep in mind that the drive to the leadscrew has to go through the stack of different size gears (which I call the cone gears). The missing piece of the puzzle for metric threading definitely includes the gear on the right side which is connected to...
by dly31
Tue Dec 08, 2015 8:58 pm
Forum: The Junk Drawer
Topic: Q: What chemical bonds rubber to metal the strongest?
Replies: 18
Views: 4669

Re: Q: What chemical bonds rubber to metal the strongest?

"Super Glue" will bond some types of rubber to metal. Which type, meth or cyan ? It has been quite a while but I seem to remember that the original cyan glues were used in making O-rings from neoprene stock and there was some discussion that using rubber as a flexible interface between glued metal ...
by dly31
Mon Nov 30, 2015 9:25 pm
Forum: General Discussion
Topic: Creative version of a 3 phase switch?
Replies: 28
Views: 2683

Re: Creative version of a 3 phase switch?

A two pole switch on a three phase motor is unsafe and not permitted by any codes I know of but it works perfectly well.
by dly31
Sun Nov 29, 2015 9:39 pm
Forum: The Junk Drawer
Topic: Why People Prefer Imperial to Metric
Replies: 80
Views: 12727

Re: Why People Prefer Imperial to Metric

When my boys and I first got dune buggy and Rabbit VW's we found that we could manage most fasteners with imperial tools except for the 10MM ones. Metric tools were not common here but we bought a 10MM socket and combination wrench. Later, we found a set of combination wrenches at K-Mart and bought ...
by dly31
Sat Oct 31, 2015 8:13 pm
Forum: Milling Machines
Topic: Removing bridgeport pulley nut
Replies: 20
Views: 3976

Re: Removing bridgeport pulley nut

If you need something stronger, an old socket is good for making that kind of tool. You can also braze or weld pins to the outside of a pipe or socket.
by dly31
Sat Oct 31, 2015 8:08 pm
Forum: The Junk Drawer
Topic: Q: What chemical bonds rubber to metal the strongest?
Replies: 18
Views: 4669

Re: Q: What chemical bonds rubber to metal the strongest?

"Super Glue" will bond some types of rubber to metal.
by dly31
Sat Oct 31, 2015 8:03 pm
Forum: The Junk Drawer
Topic: Need tp locate small Pentagon female bits or sockets
Replies: 14
Views: 4011

Re: Need tp locate small Pentagon female bits or sockets

It might be feasible to make a copy of the screw and use it to hot forge a fitting socket.