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Mill/drill stand for Warco Major mill

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PekkaNF:
Last night I cut some C-channel (80x45 mm and 65x40 mm). Four 740 mm pieces for legs (because that is the maximum size that fits into my flower pot that is filled with vinegar to remove rust and slag). And four 500/600 pieces for table apron and stretchers.

Flower pots are perfect size, almost 750 mm internal lengt, but still about 10 liter volume. Drawbacks are missing lid (opening means streching new clingafilm) and material should be thicker all over.

Not cruicial on this one, but sometimes it would be really nice how to weld together pipe/plate/channel to to produce strogest joint. I know some priciples, but there is more. Wonder if there is a siple guide to layman?

Pekka

PekkaNF:
Draw bar.

First I was thinkking if differential screw. It needs certain ration and at the taper end is tandard, that leaves tail end to play with. Hole trough the spindle is pretty good for M16x2 thread and was easy to tap. Therefore I made alternative design.

Drilled 8,5 mm hole trough  M16 20 mm long screw.

M8 thread at tail end of draw bar and long nut to fit.

Greased the rotaing parts and used bearing retainer glue to glue M8 long nut into draw bar. Left it upright for glue to harden and prevent it running to wrong places.

Pekka

Pekka

PekkaNF:
I have been bussy lately, but put hour now and then to this.

Decided to  make it minimum size (base size for the drill mill and a little extra to put the mount holes iddle of the C_channels results in outer size of base is 400x600 mm. Height 750 mm.

Welding and paintin was easy. Came out pretty heavy.

Used best part of the day putting the lifting eye on the roof joist. Build it from two 2x4" upright atop of roof joists. Spend some time questimating would that bee good enough. It was. Used M16 8.8 all thread and lifting eye, big washer upper end trough hole on one 2x4" laying flat.

I bought cheap chanin block and I am not sure if the markings are right on the box. Promise is for one metric ton, but maybe for them metric and imperial ton is the same. It was a little sticky with 1/3 of metric ton.

Got it lifted, put in the tray and proceeded to shim (my day off).

Pekka

PekkaNF:
uhuh

Shimming it straight was not easy (nor completely over) :Doh:

I think that not only the floor is skewed but the welded fame has a set and something flexes on 0,1 mm /m scale when bolts are tightened.

The big idea was to nip the frame reasonably straight and true on mill base (it is ribbed cast iron frame with some rigidy) and then shim it level and relaxed on the floor. That did not give consistent results.

Plan "B" now it is reasonably level, but not completely straight. I bolted it down, let it settle and if it has big issues I shim again the base. If it stays on level, I will shim the mill straight betwen mill plinth and table frame.

Next time I'll design adjustment on the floor pads.

After I bolted the frame on the ground i cut the bilical cord - took away the hoisting equipment. Now it has to stand on it's own.

tom osselton:
Looks good but I’d be worried a little the machine base is bigger than the stand and once the table is moved to the end of travel supporting any weight the leverage just might tip it! I see it’s bolted down I’m just saying!

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