Author Topic: Its Up And Running  (Read 1745 times)

Offline platypus20

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Its Up And Running
« on: May 30, 2017, 08:24:28 PM »
With a couple of friends (Norm and Trombone Pete), I finally got the new to me Rockwell 21-100 milling machine, into the shop (akin to shoveling 5# of crap into a 3# bag). We had to move 2 welders, 3 tool boxes, a plasma cutter, a bandsaw and numerous buckets of all kinds of stuff (I'm cleaning out my late FIL's shop). After shoehorning the mill into the shop, I got it permanently wired up, trammed the head and the vise. Hopefully it will actually cuts some chips in the morning.

The ER 32 x R8 collet chuck, I got, has a .008" run out, so I made arrangements to have a new on here ASAP (hopefully Friday). I'm also digging out a set of R8 collets, from the stockpile. I'm still not happy with the height of the mill, still working on a base design.The new drawbar seems to work fine.

I have to put a 1/4" keyway in a 1" shaft, it seems like a test for the new mill.
jack

Offline goodfellow

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Re: Its Up And Running
« Reply #1 on: May 31, 2017, 06:35:40 PM »
Congratulations Jack --

Offline jabberwoki

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Re: Its Up And Running
« Reply #2 on: May 31, 2017, 08:18:05 PM »
 needpics
There is a very fine line between a hobby and a mental illness.

Does the need justify the want ? Or does the want suffice?

Offline tool hunter

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Re: Its Up And Running
« Reply #3 on: May 31, 2017, 10:15:29 PM »
It didn't take you long to get that up and running and into the lineup, nice job.

Offline Muddy

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Re: Its Up And Running
« Reply #4 on: June 01, 2017, 09:58:18 PM »
Looking forward to pics and projects Jack!

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Offline platypus20

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Re: Its Up And Running
« Reply #5 on: June 04, 2017, 12:44:04 PM »
Since my last post, I've been busy with the Rockwell milling machine. I changed out a bad bearing in the transmission (Graingers replaced no questions asked), I installed a different drive sheave/pulley, installed 2 new LED lights and raised the mill up 4".


1 - the mill in place
2 - the 4" x 4" x 1/4" box tubing, to raise up the mill
3 - the lights, bracket attached to the "transmission"
4 - bottom of the quill is now 57" off the floor
jack

Offline platypus20

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Re: Its Up And Running
« Reply #6 on: June 04, 2017, 12:53:33 PM »
5 - the new speed chart
6 - the Rockwell, the Franken-Drill and the modified HF 20" drill press (also raised 4") nested together
jack

Offline goodfellow

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Re: Its Up And Running
« Reply #7 on: June 04, 2017, 12:58:48 PM »
Excellent! very good work Jack --

BTW -- That 20'' press from HF was a very good deal at one point in time.
« Last Edit: June 04, 2017, 01:40:45 PM by goodfellow »

Offline platypus20

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Re: Its Up And Running
« Reply #8 on: June 04, 2017, 01:28:39 PM »
The comment, that the lights were new, is a slight lie, I'm in the process of cleaning out the rest of the late FIL's shop and barn (MIL is selling the house after 53 years), I stole the flexible goose-neck lights from the shop, threw about 90% of the light assembly away, the base, switches, wiring and bulb sockets, hit the trash. I made a new mounting bracket, installed all new wiring, sockets and plugs, basically kept the goose-necks and the shades. That and some new super bright LED spot lights, I can now actually see the work area on the mill.
jack

Offline jabberwoki

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Re: Its Up And Running
« Reply #9 on: June 04, 2017, 02:41:02 PM »
Nice I love that old Rockwell stuff.
There is a very fine line between a hobby and a mental illness.

Does the need justify the want ? Or does the want suffice?

Offline slip knot

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Re: Its Up And Running
« Reply #10 on: June 04, 2017, 04:10:06 PM »
the lights are nice. You can always use more light on the work.
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Offline platypus20

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Re: Its Up And Running
« Reply #11 on: June 06, 2017, 02:13:29 PM »
I had to reconsider the 4" box tubing, under the mill, while raising the mill up, it also gave me some leveling issues. After about 1-2 hours of shimming and cursing, I decided to add leveling feet to the mill.

So last night, I installed some leveling feet (from a source I can not remember) under the front cross brace and a some tubing of the same height, under the back, it was a lot better, but because of the floor condition, there was still some shimming needed.

This morning I ventured out to the industrial supplier, and picked up some hardware to manufacture some back leveling feet.

2 - 4-1/2" of 1-1/4" B-7 Hardened all-thread
4 - 1-1/4"-7 2H heavy nuts
4 - 1-1/4"-7 jam nuts
2 - 1-1/8" flat washers
2 - 1-5/8" flat washers
4 - 1"-8 2H heavy nuts
4 - 1"-8 jam nuts


Welded a 1-1/4" 2H heavy nut and a 1-5/8" flat washer on the end the 2 pieces of all-thread. I then after the welding, put the pieces in the lathe and cut the bottoms of the piece, flat. Then assembled them, the welded piece, a jam nut and a flat washer.

Using the Jet toe-jack, lifted the back of the mill, removed the back cross tube, drilled 2, 1-1/4" holes in the bottom of the tube. The using the fabbed piece, put a 1-1/4" 2H nut inside the tube clamping the nut down tight and then welded it in place. After it cooled down, installed both fabbed feet in the box tubing and reinstalled it in the mill.

I went to the front of the mill, raised it up and removed the front cross tube. Removed the acquired leveling feet, with 1"-8 thread, then welded 2 of the 1" 2H heavy nuts inside the tube, making the leveling procedure easier. Reassembled the front leveling feet and the cross tube assembly and reinstalled it under the mill.

Then leveled the mill, side to side and front to back, it is now level, and rock solid, this added an addition 2" to the height of the mill, putting the bottom of the quill at 59" off the floor, but with the ER32 x R8 collet chuck, thats on the UPS truck for delivery, today, with stick out ~2" from the bottom of the quill, bringing it back down to about 56"-57", which I think is just about right.

1 - the hardware
2 - the fabbed piece
3 - in the tube
4 - ready to go under
jack

Offline platypus20

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Re: Its Up And Running
« Reply #12 on: June 06, 2017, 02:23:33 PM »
5 - the back
6 - the front
jack

Offline tool hunter

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Re: Its Up And Running
« Reply #13 on: June 06, 2017, 08:16:27 PM »
Nice job on the leveling feet. You shouldn't have any trouble with those.

Offline platypus20

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Re: Its Up And Running
« Reply #14 on: February 19, 2018, 10:59:33 AM »
It’s been a while, so here is a update.

The Rockwell mill, with its “transmission”, has been a great addition to the shop. I basically permanently mounted a R8 x ER32 collet chuck, in the mill, I find them to be easier to use than the R8 collets.

The “transmission”, has greatly altered the spindle speeds from the original offerings from Rockwell. Going from 6 speeds to 24 speeds, with smaller steps between them, makes it much easier to get to the proper cutting speeds, for the specific cutting tool being used. The surface finishes on the cuts is amazing.

The table and knee are very tight and solid, the new handles, were a great addition.

The aluminum table plate, I made has greatly fascinated the clamping of parts to the table, making set ups much easier. On my list of future jobs, is a similar plate for the Jet mill.

On the down side, it’s become apparent, that I’m spoilt, the lack of table and knee power feeds is a great loss to me. As the Jet JVM 836 and the Infamous Franken-Mill, both have X, Y and Z power feeds, going to mill with out any of them is a severe let down. Now, also on my ever growing list, is adapting power feeds to the Rockwell mill.

The other thing I miss on the Rockwell, is an one shot oiling system. While the X and Y table nut has a remove oiling port, the knee and the table ways have to be oiled separately, oiling the underside of a horizontal surface is not a easy chore. Other people have drilled holes and made oiling ports for these sliding surfaces, that too may end up on the list.

So far the Rockwell mill has been a positive addition to the shop, with a few changes, it could be better. I can see why this size mill, like the Rockwell, Burke Mill-Rite and a few other, are so high sought after, a well built, smaller scale mill similar to a Bridgeport (style), with many of the similar features.
jack

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Re: Its Up And Running
« Reply #14 on: February 19, 2018, 10:59:33 AM »