Allied Recording 6n style lathe feedscrew/6n feedscrew dimensions

[mratx]

Does anyone know if the Allied Recording 6n copy lathes can use Presto 6n feedscrews? I have one which needs a feedscrew. It looks very, very similar to a 6n, but I don't have a Presto that I can use to compare. If no-one knows, does someone have the dimensions of a 6n feedscrew I can use to try to compare (length, thickness, diameter of gears on both ends? Thanks.

Mark

[markrob]

Hi,

This may help. Many years ago, I made a feedscrew for my now long gone 6N. These are the measurements I took to make mine. Not that if your feed screw has any gears attached, it is not 6N compatible.

Presto Lead Screw.pdf

[piaptk]

Do you have photos of your feedscrew? I've had a few Allied Turntables but never an overhead. The PResto 6N feedscrews (which I sell) didn't have a gear on either end.

[piaptk]

I would love to see the whole Allied 6N copy... to see what the differences are between them and a 6N

[mratx]

I don't have a feedscrew, but someone got me some pictures and measurements, some pics attached. After looking at Mike's site, it's a 6d style feedscrew not 6n, clearly I know nothing about Prestos! Feedscrew is 9 15/16 long total including the gear, and the gear is 2.125 inches in diameter. Feedscrew diamer is .625, matching Mark's diagram.

[mratx]

Here are some pictures of the overhead. The head is not original, someone else took the head and feedscrew for a homebrew lathe. Original cutter head was an audax.

[Fela Borbone]

In my Allied, the feedscrew is fixed with gear (and ratchet) on it, like Rek o Kuts, but not Prestos.

[displacedsnail]

Oh yeah, that's a Presto 6D (DSP?) overhead. Got one of those at home, I like it a lot. Not as stable as the 6N, but a good, solid overhead carriage.

[piaptk]

I wonder if Allied made overheads or just turntables. I found a 6N overhead with an Allied turntable and a Van Epps overhead with an allied turntable. And if I remember right, I think Tragwag said he had a 6N at one point with an allied turntable. I ended up rehoming both of them underneath different Van Epps overheads. One is in San Diego and one is in Buenos Aires now.