Angle Plates

**rossbotics** · Sep 11, 2018, 02:46 AM

Made a new set of angle plates yesterday from 1/2" thick 4140 hardened and ground, I already had a set of plates that were 1/4" thick and another set that was 3/4", but sometimes the 1/4" thick plates aren't wide enough for stability and sometimes the 3/4" thick ones are too wide to fit where I want them.

These new plates are the standard 30°-60°-90° and 45°-45°-90° but I made another plate with an angle that sometimes I could use which is 22.5°, so I made a 3rd plate at 22.5°-22.5°-135° which will come in handy once in a while.

I didn't take any photos of the machining and grinding processes just a couple photos of the comparison of the 3 sets of plates.

As always thanks for looking and happy machining

Doug

**LMMasterMariner** · Sep 11, 2018, 07:11 AM

Nice job as always, but I am more impressed with new avatar - mill.

**old_toolmaker** · Sep 11, 2018, 07:38 PM

rossbotics,

Nice work as always. You can never have enough tools!

**rossbotics** · Sep 12, 2018, 12:08 AM

Originally Posted by LMMasterMariner

Nice job as always, but I am more impressed with new avatar - mill.

That is a nice mill isn't it ?
What is the avatar you have, can't quiet figure it out

Doug

**LMMasterMariner** · Sep 12, 2018, 01:21 AM

Originally Posted by rossbotics

That is a nice mill isn't it ?
What is the avatar you have, can't quiet figure it out

Doug

It's rusty ac 14 type anchor. Took picture while vessel was in dry dock.

**rossbotics** · Sep 12, 2018, 07:09 AM

Originally Posted by old_toolmaker

rossbotics,

Nice work as always. You can never have enough tools!

Thanks old_toolmaker
That's for sure

Doug

**old_toolmaker** · Sep 12, 2018, 08:23 AM

rossbotics,

You are welcome!

**PJs** · Sep 12, 2018, 11:16 AM

Beauties Doug. Quite a collection of metrics on your table there, always things to measure. Thanks for posting your new additions!

I don't recall seeing any of your posts about your heat treating systems (quench, treat, temper, etc). Is it a commercial oven or shop built? Would love to see/hear more if you are up to it.

PJ

**rossbotics** · Sep 12, 2018, 10:59 PM

Originally Posted by LMMasterMariner

It's rusty ac 14 type anchor. Took picture while vessel was in dry dock.

Oh I see now, how blind of me, must be getting old

Doug

**rossbotics** · Sep 13, 2018, 05:05 AM

Originally Posted by PJs

Beauties Doug. Quite a collection of metrics on your table there, always things to measure. Thanks for posting your new additions!

I don't recall seeing any of your posts about your heat treating systems (quench, treat, temper, etc). Is it a commercial oven or shop built? Would love to see/hear more if you are up to it.

PJ

Thanks PJs
I do my heat treating using an oxegon and accetylene torch with a 3/4" diameter rose bud tip, it gets the temp up pretty dang fast, I just go by the color of the steel, been doing it that way for many years ol pal, it's something you learn in time and through trial and error.

But I am collecting parts and pieces to build a forge, not to make knives or anything just for heat treating, these large bottles of oxegon and accetylene I have are getting real expensive to refill.

Thanks PJs
Doug