Crazy setup for a part I had to make

[hornluv]

Hi Everyone. I had a part to make with a compound angle and two angled holes that intersect in the middle on one end. The setup was...interesting. Here's a video explaining the method to my madness:

[Doozer]

Nice.


--Doozer

[Toolguy]

Wow! That's the biggest compliment Doozer's ever given! You hit it out of the park, man!

[old mart]

That won't go down well with people who hate rotary bases for vises.

[eKretz]

That won't go down well with people who hate rotary bases for vises.

What?! Are you kidding? If you're going to use a rotary base, THAT is just the sort to use. Now those baby bolts holding the vise down are another story, but for drilling those small holes we will let it slide just this once...

[Dave C]

Nice work. Did you mill a flat for starting the drill bit? I hate having to angle the turret like that.

[Mcgyver]

Wow! That's the biggest compliment Doozer's ever given! You hit it out of the park, man!

Another mascot theft!! Who took our Doozer? reminds me of when Big G was stolen....you remember Big G?

https://www.youtube.com/watch?v=pK8grjILits&t=1s

interesting set up....why the RT....just happened to be there?

[hornluv]

What?! Are you kidding? If you're going to use a rotary base, THAT is just the sort to use. Now those baby bolts holding the vise down are another story, but for drilling those small holes we will let it slide just this once...

The T-slots on the rotary table are too small for 1/2-13. I guess I could have fit 7/16-14 in there.

[Willy]

Great setup and explanation in the video. I love info like this, setups are the key to most of the work we need to do. Sometimes my head hurts from what needs to be done and how to go about a particular task. I can see that you gave it some thought, thanks for documenting it so well.

[hornluv]

Another mascot theft!! Who took our Doozer? reminds me of when Big G was stolen....you remember Big G?

https://www.youtube.com/watch?v=pK8grjILits&t=1s

interesting set up....why the RT....just happened to bet there?

There are two angled holes that intersect so the rotary table was to index it around. I explain the rationale in the video, which you should definitely watch to the end for the big reveal.

[hornluv]

Great setup and explanation in the video. I love info like this, setups are the key to most of the work we need to do. Sometimes my head hurts from what needs to be done and how to go about a particular task. I can see that you gave it some thought, thanks for documenting it so well.

I strive to have the most educational BS on YouTube!

[Willy]

I strive to have the most educational BS on YouTube!

No kidding!
One of the best setups I've seen in a long time.

[Doozer]

Story time...
I long time ago, I bought a 12" Sheldon shaper
from this guy in NY who was into tractor pulling.
He got it from a high school machine shop.
Great shape except a few bent handles.
Nice, it had the steel base and the Reeves drive
belt for variable speed. Not the oil pump model
but it had the friction clutch to feather the ram.
I think I paid $300 for it at the time.
....Anyhow I had it for may years and never got
to cleaning it up. My buddy Brad took a liking to
it, and he wanted to trade me an Advance rotary
table, with the 16" square X - Y positioning table
built on, on top. This thing was big. It also had
the extended handle, and extra 6 or so inches
so it would clear off the machine table. I thought
it was worth the trade.
It is really handy to have an X - Y positioning table
on TOP of the rotary table. This way you can dial
in the CENTER of the work or the vise. Else, as you
might have come to find.... on a regular rotary table,
you have to tap tap tap the work into center using
an indicator. Nicer to crank a set of handles to dial
in your workpiece. More civilized as it were.
Sears Craftsman sold a Palmgren rotary table with
the X-Y slide on the bottom of the table, under the
rotary axis. Totally useless. If someone can tell me
what was the reason, I am all ears. But rotary tables
in the shop are lots of fun. I have milled O-ring
grooves with them a few times. Poor man's CNC.

---Doozer

[J Tiers]

.........................
Sears Craftsman sold a Palmgren rotary table with
the X-Y slide on the bottom of the table, under the
rotary axis. Totally useless. If someone can tell me
what was the reason, I am all ears. But rotary tables
in the shop are lots of fun. I have milled O-ring
grooves with them a few times. Poor man's CNC.

---Doozer

Maybe like the table on a slotter...... so you can get the rotary part moved around to do what you need.

Of course, the mill table should do that.... But I reckon they were made to use on a drill press anyhow, they are too tall and skinny to do any serious milling with. My FIL has one. Uses it for notching custom cylinders for fast-draw competition pistols.

[Toolguy]

The Palmgren one was an idiotic piece of junk. I haven't liked anything they made, anyway. Putting the rotab on top of the xy component gives you nothing that putting a regular rotab on the mill table will do. With the rotab under the xy table, you can make multiple radii on a part in one setup just by moving the desired centerpoint over the zero on the rotary part of it. You can do multiple angle tangent to radius that way, too.