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Power supply for wheelchair motor?

I recently dumpster dove for a couple of 24 volt 400-600 (estimated) Watt, 3000rpm motors with controller off a Ranger...
10 comments posted 20yrs
posted by mlcorson
10 comments posted 20yrs posted by mlcorson

My Crooke's Radiometer Revisited

For those who put up with my blathering about what might be screwing up my 10+ year old radiometer a few weeks ago, her...
3 comments posted 20yrs
posted by jwisnia
3 comments posted 20yrs posted by jwisnia

A novel gasoline substitute

Kinda scary and interesting at the same time. http://www.motherearthnews.com/library/1980_March_April/I_Run_My_Car_on_Ac...
13 comments posted 20yrs
posted by azotic
13 comments posted 20yrs posted by azotic

Quorn tooling grinder questions

I'm looking for advice on my latest acquisition. It's clearly capable of more than I know how to do, but I'd like to kn...
14 comments posted 20yrs
posted by DaveHinz
14 comments posted 20yrs posted by DaveHinz

massive yet tiny engine

I first read about this in nasa tech briefs last month. Has anybody seen this thing first hand? http://www.gear6.net/200...
9 comments posted 20yrs
posted by gromit68
9 comments posted 20yrs posted by gromit68

puzzlenuts redux

After successfully removing two puzzlenuts with the shop-made key, the key failed on the third one. Sheared the rods ri...
7 comments posted 20yrs
posted by dforeman
7 comments posted 20yrs posted by dforeman

Dyna Mechtronics Forum

Just a reminder, I have setup a forum for Dyna Mechtronics users at www.professorwiz.com. Look on the left hand side an...
0 comments posted 20yrs
posted by russw
0 comments posted 20yrs posted by russw

10EE turret lathe

I own a couple Monarch 10EEs and have watched Ebay 10EEs for years... http://tinyurl.com/m9ek9 I've never seen a turret...
6 comments posted 20yrs
posted by karltownsend.NOT
6 comments posted 20yrs posted by karltownsend.NOT

Machine tools for sale in Maine

The ad sez: Machine Shop Liquidation Bridgeport J head with dro, power feed BP Series 2 several lathes (longer than 6')...
0 comments posted 20yrs
posted by sos
0 comments posted 20yrs posted by sos

Rockwell-Delta 10 inch lathe spindle taper?

I have a 10 Rockwell-Delta 10" metal lathe in my garage. It has a non-standard taper (I think) in the spindle. Not mors...
5 comments posted 20yrs
posted by t.o.jones
5 comments posted 20yrs posted by t.o.jones

Connelly book for $50

http://www.abebooks.com/servlet/ListingDetails?bi=717153175&cm_la=want
0 comments posted 20yrs
posted by kinch
0 comments posted 20yrs posted by kinch

Feed Screw Nuts - Tightening

My horizontal mill has a bronze nut for the table feed screw that is, in cross-section, shaped like a pillow block. Lik...
0 comments posted 20yrs
posted by jmartin957
0 comments posted 20yrs posted by jmartin957

NMR: Mayonaise

NMR = Not Metal Related... Most people don't know that back in 1912 Hellmann's mayonnaise was manufactured in England....
8 comments posted 20yrs
posted by bob
8 comments posted 20yrs posted by bob