the logic of a 3 phase is simple. you more power because of the three coils. using 3 phase, you have each sine wave running at 60 cycles, so you have less gap between the waves. it delivers more torqu

www.mcmastercarr.com put in key stock select key stock scroll down to the steel starting at 1/16 and up. be careful, mcmaster carr has a LOT of stuff, they ship same or next day and you get it pretty

looks like a 9" from 1943 and a 13" from 1941 seems like that bracket went fast. please let us know when you find your new project lathe. Dave

just how close are you? did you loose 5 thou per inch ? or were you off by 30 thou per revolution ?

the lathe shipped to the Naval Research Lab in Washington, DC. It shipped on 8-20-1943. Dave

flashlight shows it to be 142832 looks like it is in the correct decade. Dave

Hi Neighbor, It looks like 142037 if that is correct, it would make it about July, 1943. not the right year. I will take a flashlight and triple check. I did not think it was that close ! Dave Browns

Did the group setting get changed ? I used to get the RSS feed, but for some reason, yahoo says I cannot anymore. As for moderating, anyone who sends spam, just set their account to every post. they q

Hi, anyone have photos of a power hack saw mechanism that lifts the blade on the non-cutting stroke ? seems that youtube is full of people cutting and motors spinning, but nothing that shows the mecha

any idea of the serial numbers ? I have two 9"ers one is an A. the C is older. Dave

did they make a 1 3/8 bore in the headstock ? power cross feed

you can make one without too much trouble. you can get a plastic gear for cheap. I have found more than a few in old printers. just need to get the number of teeth. Dave

I thought the A had a power cross feed and QC gear box. the B had only the QC gears and the C was manual in both respects ?

I use a dial indicator on the cross slide. not the hand dials. if you do use the hand dials, use a long lever to tweak the movement. the amount of force on the short arms can have things move more tha

what is the diamteter of the typical large dials ? 46 mm is about 1.8"

the tools needed are far-far less than what it would take to change the dials to large dials. if you have a hand saw and some metal, you can make the holder. you should have a dial indicator already.

If I may offer an alternate solution, a 2 inch indicator with mounting would offer very high precision. also, setting the units up can make life easier. you can make dials for your lathe. measure the

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This list has been watered down when it started splitting into different model lists. This is now the 9" lathe group and those who mention or have a 10 go elsewhere. That is why you do not see much he

Good solution. May I suggest you use a section of the the lead screw that has virtually no wear ? If the screw has wear in the most used area, and you make nuts there, they could be tight on other pla