Search found 17 matches

by rklopp
Thu Aug 08, 2019 9:38 pm
Forum: The Junk Drawer
Topic: Lead-Free Plumbing Solder: is it Greenie Garbage?
Replies: 8
Views: 942

Re: Lead-Free Plumbing Solder: is it Greenie Garbage?

Quit blaming it on the “greenies” and put the blame where it belongs. Lead is nasty stuff, especially for kids. Why purposefully put it out there if you don’t have to? You likely either underheated or overheated you joint. Folks, including me, have soldered whole houses for years using lead-free sol...
by rklopp
Sun Jul 07, 2019 1:34 pm
Forum: General Discussion
Topic: Looking for 4032
Replies: 13
Views: 2367

Re: Looking for 4032

I found 4032 round bar on Amazon, but I don’t see sizes listed, nor “Add to cart,” which makes me think it is not truly available. I could swear I bought some from McMaster years ago, but they don’t seem to list it now.


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by rklopp
Sat Aug 12, 2017 11:08 pm
Forum: Lathes
Topic: calling Colchester CHIPMASTER owners
Replies: 2
Views: 1275

Re: calling Colchester CHIPMASTER owners

I use a mixture of 80% Mobil Velocite #6 and 20% Velocite #10 in the headstock of my Chipmaster. It is acceptable to blend oils to achieve a desired custom viscosity. My Chipmaster manual asks for Shell Tellus 15, with 42 Redwood #1 Viscosity at 140 degF. This viscosity converts to 11.7 centistokes ...
by rklopp
Thu Apr 15, 2010 12:52 pm
Forum: General Discussion
Topic: 575 volt three phase motor
Replies: 3
Views: 1185

Re: 575 volt three phase motor

I just bought a mill originating from Canada that has 575-V spindle, feed, and coolant motors. I have opted to replace the spindle and feed motors with 230-V 3-phase motors and 2 VFDs, and will most likely abandon the coolant motor, since I typically don't use flood coolant anyway. I tried to find t...
by rklopp
Fri Oct 17, 2003 3:02 pm
Forum: General Discussion
Topic: Odd threads
Replies: 7
Views: 1491

Re: Odd threads

Since one of the prime factors of 34 is 17, you can be quite sure you will need a gear with 17 teeth or a multiple thereof somewhere in the train, compounded with another gear. For any other weird thread, look at the prime factors and see if you have a gear with a multiple of that number of teeth.
by rklopp
Fri Oct 17, 2003 12:36 pm
Forum: General Discussion
Topic: Butress threads - help!
Replies: 3
Views: 1091

Re: Butress threads - help!

I just finished cutting three sets of 50-degree buttress threads to match Schaublin W-20 collet threads. They were for arbors for a Swiss Aciera F-2 milling machine. I cut them with the compound slide kicked 44 degrees to the left. That way, I took most of the chip on the thrust flank (which was at ...
by rklopp
Thu May 15, 2003 12:57 pm
Forum: Lathes
Topic: Carbide Tip cut off tools
Replies: 13
Views: 2879

Re: Carbide Tip cut off tools

I bought a blade for self-locking GTR, GTN, and GTL style inserts. I made an Aloris block for it and bought the inserts on eBay. I'm into it about $60 for the blade and $1.50 apiece for the inserts. I'm still on my first insert after at least a couple dozen cutoffs. I find I can go dry and surprisin...
by rklopp
Fri May 09, 2003 1:12 pm
Forum: The Junk Drawer
Topic: Machinery Transportation
Replies: 21
Views: 4465

Re: Machinery Transportation

I used the trucking referral from the machinery dealer when I bought my 1300-lb lathe. It was in Chicago and I'm in the San Francisco Bay area. They recommeded Jedan Logistics out of Minnesota. I paid $540 for tarped delivery on a lowboy flatbed. No damage. I think I did very well.
by rklopp
Fri Apr 18, 2003 3:41 pm
Forum: Lathes
Topic: Question on Lathe Spindles and Chuck Mounting
Replies: 11
Views: 2431

Re: Question on Lathe Spindles and Chuck Mounting

Thatspindle thread sounds like an odball. I once had a Jet 12 x 36 belt drive lathe that had a bastard metric/English spindle something like a 65-mm diameter 8 threads per inch. I made my own plug gage copy and used that to help make chuck backplates and such. It didn't matter much that the OD or pi...
by rklopp
Wed Apr 16, 2003 4:48 pm
Forum: Lathes
Topic: Need Help - Lathe Faceplate - What do I do Now
Replies: 6
Views: 1829

Re: Need Help - Lathe Faceplate - What do I do Now

When turning between centers with a dog, I don't do it the textbook way anymore. I chuck up a piece of steel, turn a 60-degree point, then use that as the center and let the dog tail drive off one of the chuck jaws. You get as good concentricity as you'll ever get, and save time. If you have a "klun...
by rklopp
Wed Apr 09, 2003 5:48 pm
Forum: Welding
Topic: I didn't know that...
Replies: 2
Views: 1177

Re: I didn't know that...

Might be an ultrasonic weld, rather than an electric spot weld. In ultrasonic welding, the sheets are pinched between rough anvils that vibrate sideways ultrasonically. The anvils grip the sheets but the interface slips back and forth, heating the joint and breaking up the oxide film. Then the ultra...
by rklopp
Fri Apr 04, 2003 5:55 pm
Forum: General Discussion
Topic: Teco Westinghouse VFD
Replies: 7
Views: 2175

Re: Teco Westinghouse VFD

The VFD computes a theoretical temperature rise based on current and speed history. The current gives the heat input and the speed (if the fan is on the motor's rotor) gives the heat out. There's a different setting if the fan is independent, like a small boxer fan. EMI from VFDs can be terrible und...