ABYMC

Bubba-Jet · Apprentice Joined: 02 Jun 2008 Posts: 9

Recently found a peice of Americana that is just screamin at me to make it work. W.F.& J.Barnes no 13 x 33" Engine Lathe with Compound cross-slide.Anyone else have one thats working ?And Can melt Iron also !
Fellas ..... Interested ?

Bubba-Jet · Apprentice Joined: 02 Jun 2008 Posts: 9

metalmaster1766 · Posted: Wed Oct 08, 2008 4:02 am Post subject:

i dont know about casting iron, i can do it, but i dont want to take on a job doing it until i can perfect doing it myself, besides that my foundry tools are buryed in the back of my shop, months of work to get em out

what is it you need machined? just a left handed nut, or is it the shaft and nut
19/32-6 is a bastard size and a bit small to cut internal threads in, but with some tool making im sure it can be done

i have a very old Leblond lathe, 1890's 20 inch swing by 48 inches between centers, very accurate, i use it all the time

if that thread wasnt so small i would be interested in doing it

Ron

Bubba-Jet · Apprentice Joined: 02 Jun 2008 Posts: 9

Tried ordering a 5/8 X6 Left-Handed Thread nut- Wont fit!
I measured it (the Screw) @19/32 X 6. Single start
My machinist friend measured .588" Height, .170" Thread to thread

As far as the peice of Iron I made a wooden block thats actual size.
So any of you greensanders that do Iron .....Wanna project?

Anon · Posted: Wed Oct 08, 2008 3:56 pm Post subject:

With that comparatively coarse thread in such a small hole, I'd be more tempted to make a custom tap and tap the thread than I would to try internal threading.

If I wasn't at college right now, I'd give it a shot.
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metalmaster1766 · Posted: Thu Oct 09, 2008 10:25 am Post subject:

if you can wait till spring 2009 i would be willing to cast that part for you, just 1 other ?

what is the weight of the finished part? so i can make sure my crucible is large enough, i think i can get by with a 15 pound cast iron melt (not real sure tho)

i would need to make myself a new crucible, which is about a week long process, my 1st one finally broke, and not from use, i knocked it off my workbench a few months ago and it broke into pieces

i think Anon has a good idea for the nut, just make the tap from some type of material that can be heat treated, i believe drill rod would work (at least i hope cause i have a piece that i plan on making a left handed tap out of)

i tried to use an old left handed threaded rod for a tap and it didnt work out

Ron

Anon · Posted: Thu Oct 09, 2008 2:15 pm Post subject:

Case-hardened mild steel might work for a single use, but drill rod would be better. A steel like A-2 would work best, as it will get harder and be less likely to warp, but something like O-1 should also work fine.
_________________
The process of turning stumbling blocks into stepping stones can at times require the use of a large sledgehammer.

Foundry Tutorial
My website

Bubba-Jet · Apprentice Joined: 02 Jun 2008 Posts: 9

The mould for the Cross-Slide will be on its way to Oregon.Tomorrow !
Thanks for the offers Guys.