Thread: Machinsts chest value

Originally Posted by Stustoys

Hi Bruce,
A very nice collection you have there.
Whats the square thing with curved sides in the top right near the Vee block clamp.

Stuart

Its a cylinder square.
I saw one like it & decided to make it Its basically to cut down weight.
Its made from a piece of SD51 case hardening steel.
The concave curved cut outs were machined on a Mao Mill from memory.
The whole piece then heat treated, concave ground using a surface grinding wheel of the correct diameter, a bit of an overkill.
The outside dia precision ground parallel & the ends ground at the same time using side of wheel dressed accordingly, to ensure accuracy.
Finally some small grooves were ground on the ends to reduce the surface area when in use on a surface plate.
The whole thing was a bit extreme, compared to the other 2 cylindrical squares you may notice in the tool chest, made in the traditional way.
Thanks for your interest.
I read about your stuff all the time
regards
Bruce
ps Please remember all of this was made about 52 yrs ago, so its a bit of a test on the old brain to recall.

Originally Posted by Stustoys

I wonder if it might be worth keeping the mic even if you only use it as a slip gauge? I doubt you'll get much for it(though I've been wrong before).

Stuart

i only want to sell it as i have 3 identical to it.

Hi Bruce,
Thats a great idea, Might steal that if I ever get around to making a good one.

Thanks

Hi Welder,

lol I guess 3 is more than enough for most people


Stuart

Great score Andre
Your getting well set up now.

Dave

Thanks every one i am worried that i am getting in the habit of buying tools as i now have a sine bar i want a set of gauge blocks and more micrometers.Then I a need a surface plate all expensive stuff that takes ages to save up earning $10 an hour.

$10 an hr whats that 1st yr pay

You scored well with the tool chest a lovely kit wishes he who has no room left

Well not everything as you've found has to be brand new just looked after as is in that chest.

It's not quite finished but here is my school woodwork project

Looks great, can I put in an order?

Dave