Search found 19 matches

by mark_dingbaum
Tue Mar 02, 2004 12:23 pm
Forum: General Discussion
Topic: Phase converter start circuit questions
Replies: 12
Views: 1944

Re: Phase converter start circuit questions

Hi,

Sorry to be so late, but I just got back to the thread...

I used 240 volt coils on mine.

Seems to me if you are only worried about the coil current, you could run it back through the ground...maybe that's a bad idea, haven't thought about it enough.

good luck,
mark
by mark_dingbaum
Fri Jan 16, 2004 12:09 pm
Forum: Welding
Topic: Welding Aluminum, what grade to use?
Replies: 7
Views: 1279

Re: Welding Aluminum, what grade to use?

Hi, Great info... Since I'm trying to reinforce the door at the very bottom, and the forces I'm trying to contain will try to bend the reinforcement against the 5" plane (very hard to do), I doubt strength is all that important. This stiffener will add a lot of strength to the door frame. As built, ...
by mark_dingbaum
Thu Jan 15, 2004 5:27 pm
Forum: Welding
Topic: Welding Aluminum, what grade to use?
Replies: 7
Views: 1279

Re: Welding Aluminum, what grade to use?

Hi Larry, I found a supplier (http://www.shapirosupply.com/) that lists 1/8"x5" or 1/8"x6" in 3003-H14. From some of my internet research, it appears 3003-H14 has good weldability. If the thresholds are 6063 (or some other weldable Au), my plan appears to have merit. I'll check some local suppliers ...
by mark_dingbaum
Wed Jan 14, 2004 4:09 pm
Forum: Welding
Topic: Welding Aluminum, what grade to use?
Replies: 7
Views: 1279

Welding Aluminum, what grade to use?

Hi, I'm rebuilding the front door to my house. The door assembly contains two sidelites and a door, all with separate aluminum thresholds separated by wood. The assembly could use some additional strength, especially at the bottom, so I plan to add a 1/8"x5" aluminum flat across the bottom of the do...
by mark_dingbaum
Wed Dec 17, 2003 11:06 am
Forum: General Discussion
Topic: Drill Press Speeds
Replies: 12
Views: 2392

Re: Drill Press Speeds

Hi, Friends of mine have had good luck with "Clarke" brand drill presses. These are imports sold through TSC (Tractor Supply Company). They are around $160, 16 speeds, MT3 spindle, etc. I don't know the speeds off the top of my head but I'd guess the lowest would be in the 180 rpm range. I'm sure th...
by mark_dingbaum
Wed Apr 23, 2003 12:17 pm
Forum: General Discussion
Topic: joy of fixing things...
Replies: 25
Views: 3951

joy of fixing things...

I fixed a kids scooter last night that had been run over by a car. Bent axle, distorted bushings in one rear wheel. I made up a couple simple plastic bushings from a piece of scrap countertop, straightened the axle, reassembled good as new. Tools used were a hole saw in a hand drill, a SB 9" lathe, ...
by mark_dingbaum
Tue Apr 01, 2003 9:21 am
Forum: General Discussion
Topic: Threads in .060 tubing
Replies: 4
Views: 1514

Re: Threads in .060 tubing

Hi, My hardware store has 'jack nuts' that look like a hollow wall anchor, when you tighten the nut thin strips expand out and seat against the inside wall. If you have an MSC catalog, I think they sell them also and might have a picture. There are also Nutserts that look like a pop rivet but have t...
by mark_dingbaum
Mon Mar 24, 2003 2:26 pm
Forum: Welding
Topic: Dissimilar metals, solder/braze/weld?
Replies: 1
Views: 997

Dissimilar metals, solder/braze/weld?

Hi, Working on a part for a dragster, planning to attach a fitting to a cast iron oil pump cover. The cover has a 0.750 hole in it which will fit a piece of 3/4" chrome-moly (4130?, 0.063 wall?) tubing, and a weldable steel -12 AN fitting will be attached to the tubing. This will feed the suction si...
by mark_dingbaum
Fri Mar 07, 2003 11:42 am
Forum: The Junk Drawer
Topic: AC/DC Volt/Current meter for generator?
Replies: 14
Views: 3884

Re: AC/DC Volt/Current meter for generator?

thanks again! Great ideas. The Red Lion product is very close to what I'd like to buy, but I suspect the prices are somewhat beyond my taste. The little digital panel meter from the MPJA link looks quite promising and the price is right. Using this meter, the DC voltage measurement is 'free', the AC...
by mark_dingbaum
Thu Mar 06, 2003 5:23 pm
Forum: The Junk Drawer
Topic: AC/DC Volt/Current meter for generator?
Replies: 14
Views: 3884

Re: AC/DC Volt/Current meter for generator?

Thanks for the input guys. Seems like a market opportunity for the right person, but the market is maybe a lot more limited than I realize. I appreciate the info, not sure yet if I am ambitious enough to start with a digital multi-meter and make one. I know, or have access to people who know, how to...
by mark_dingbaum
Thu Mar 06, 2003 11:49 am
Forum: The Junk Drawer
Topic: AC/DC Volt/Current meter for generator?
Replies: 14
Views: 3884

AC/DC Volt/Current meter for generator?

Hi, I've got a generator I'm adding an electonic digital (LCD) hourmeter to. Really nice little device from Enco for about $29. I got thinking that it would really be nice to have a voltage and current meter for both the AC (115V/13A) and DC (12V/10A) outputs, maybe two displays (voltage/current) an...
by mark_dingbaum
Tue Feb 25, 2003 4:09 pm
Forum: Lathes
Topic: lathe RPM/SFM display source?
Replies: 8
Views: 2124

lathe RPM/SFM display source?

Hi,

A long while ago, on the old board, someone was advertising a lathe RPM/SFM display/calculator. As I recall, the setup was very resonable in price, something under $100.

Anyone recall the name of the company selling this item?

thanks,
mark