Search found 1938 matches

by Richard_W
Sun Feb 06, 2022 5:40 pm
Forum: General Discussion
Topic: Friction thread
Replies: 12
Views: 6571

Re: Friction thread

I want a tapped hole to have a friction fit with a screw or set screw. For example, if I want an 8-32 set screw to be a friction fit, I use a #30 tap drill in place of the recommended #29. I haven't done this in metal, but just in wood for a saw plate insert in a table saw. I used set screws to lev...
by Richard_W
Sun Feb 06, 2022 12:26 am
Forum: Lathes
Topic: What's the fastest my spindle can go?
Replies: 16
Views: 10455

Re: What's the fastest my spindle can go?

On a Jet 14 X 30 gear head lathe with only 2 spindle bearings. After a while of running at the highest speed of 1,400 RPM the spindle would bind up from the heat and would literally slow down. When that happened, I would open up the back cover and loosen the bearing lock nut a little and I would aga...
by Richard_W
Sun Jan 23, 2022 5:00 pm
Forum: General Discussion
Topic: LED shop lights?
Replies: 51
Views: 25563

Re: LED shop lights?

Thanks, Richard. It's certainly easy to just replace the fluorescent tubes with the type A LED tubes and keep the ballast. A couple of years back I replaced two shop lights with LED fixtures and they are much brighter, so all I need now is to get the top priority home repairs done and I can proceed...
by Richard_W
Sun Jan 23, 2022 12:48 pm
Forum: General Discussion
Topic: LED shop lights?
Replies: 51
Views: 25563

Re: LED shop lights?

I think that as the fluorescent tubes in my shop lights go out I'm going to replace them with LEDs. I'm thinking that the bypass tubes would be easier than pulling down the existing hard-wired fixtures. Budget is an issue — I'd rather keep the cost per fixture to less than $25. So have any of you b...
by Richard_W
Sun Jan 23, 2022 12:40 pm
Forum: General Discussion
Topic: Bench grinder questions
Replies: 10
Views: 4200

Re: Bench grinder questions

I like the JET bench grinder, because they have cast iron guards and tool rests. I started with a 10 inch, but later went to the smaller 8" grinder.


Richard W.
by Richard_W
Fri Dec 24, 2021 1:57 pm
Forum: General Discussion
Topic: Love Joy coupling
Replies: 29
Views: 9283

Re: Love Joy coupling

I am a bit curious about the set up. It would seem to me that you may be running the alternator in the reverse direction designed by the manufacturer? I don't know if the direction makes a difference or not? Or if it affects the alternator air cooling?

Richard W.
by Richard_W
Thu Dec 09, 2021 9:23 pm
Forum: General Discussion
Topic: Need a part
Replies: 7
Views: 2820

Re: Need a part

Usually the old one has a part number stamped in it. So you just order the new one with the same part number.


Richard W.
by Richard_W
Mon Dec 06, 2021 11:58 pm
Forum: General Discussion
Topic: Grub screws
Replies: 19
Views: 6706

Re: Grub screws

armscor 1 wrote: Sun Dec 05, 2021 5:00 pm Commonly referred to as a Dutch Key.
I am from Dutch heritage but have no idea how the name came about.
For the last 50 years I have only heard it called a dutch key. Sometimes it the way they do it on new equipment.

Richard W.
by Richard_W
Sat Dec 04, 2021 7:46 pm
Forum: Lathes
Topic: Manual Lathe is Dead
Replies: 18
Views: 9767

Re: Manual Lathe is Dead

I didn't like the video, but then I have been in the trade over 50 years. I still work in the trade and where I work we have both CNC and manual lathes and mills. In the last 4 years we have bought 3 new manual mills (Bridgeport type with 50 taper spindles) and 1 new 21" lathe. Also we have bou...
by Richard_W
Thu Nov 25, 2021 1:45 pm
Forum: General Discussion
Topic: Boring a Bearing Race
Replies: 30
Views: 14010

Re: Boring a Bearing Race

I regularly cut hardened drill bushings. I have been have good luck with a cermet cnmg432 and smaller bushings ccmt3252. Speed of around 150 SFM and a .001 to .0015. Run dry. Ceramic works well if there are no interrupted cuts. The idea as explained to me is the cutting pressure anneals the material...
by Richard_W
Fri Oct 22, 2021 6:27 pm
Forum: General Discussion
Topic: Boring a bearing journal vrs reaming
Replies: 26
Views: 7934

Re: Boring a bearing journal vrs reaming

Thanks for the detailed replies Rich and Pete! Always appreciated. I looked into getting a solid carbide boring bar 12mm dia x 4.5" and the cost blew me away at $400! A bit steep for what it is..... I have been buying solid carbide boring bars from mmtoolscarbide on Ebay. I have used them quit...
by Richard_W
Fri Oct 22, 2021 5:44 pm
Forum: Lathes
Topic: Collet Chuck
Replies: 13
Views: 8915

Re: Collet Chuck

The collet chuck we got in the shipyard was 5C and made in Germany. It worked pretty much like the one you have. The handle was straight up and the bolt went down and attached to the bed much like a steady rest. Only a lower plate and upper plate. You would have a nut on the top plate and one undern...