Castor wheels for the mill

Discussion on all milling machines vertical & horizontal, including but not limited to Bridgeports, Hardinge, South Bend, Clausing, Van Norman, including imports.

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liveaboard
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Re: Castor wheels for the mill

Post by liveaboard » Tue Jun 21, 2022 8:21 am

Thanks, Harold;
This project has escaped the realm of practicality a while ago.
I think there are more than 100 parts!

But once started, there's nothing to do but keep going until the job gets done.

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liveaboard
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Re: Castor wheels for the mill

Post by liveaboard » Wed Jul 13, 2022 11:26 pm

I assembled the hydraulic pump;
Mixed results.
The o rings work ok against pressure, but are quite ineffective against vacuum.
So even though the hydraulic reservoir is above the pump, when drawing oil in through the check valve and convoluted bores, air gets pulled in.
Still, it lifted the 1.3 ton mill right up onto the wheels after a while.

I need to get a real hydraulic seal for the pump. It's not expensive but $10 minimum purchase + $8 postage is irritating.

And that size of seal can't be squished into an open groove, and the smallest od is just 2mm smaller than the rod I made the cylinder from...
So after boring, there's not enough material to add a retaining ring.
Ah well, it's all for fun, right?
pump block 1.jpg
pump block half made.jpg
adaptor plate oil gally drilling.jpg
pump adaptor oring grooves.jpg
pump adaptor plate ready.jpg
hydraulic pump mounted.jpg

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Bill Shields
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Re: Castor wheels for the mill

Post by Bill Shields » Thu Jul 14, 2022 5:54 am

Sometimes it is the journey not the end result...or is it the result and not the journey?

Eithery way, we all have gained a lot from your stick-to-it-ivness and creativity.
Too many things going on to bother listing them.

Harold_V
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Re: Castor wheels for the mill

Post by Harold_V » Thu Jul 14, 2022 3:24 pm

If nothing else, "failed" projects are quite valuable in teaching one the lessons that avoid future failures. I had one such experience many years ago when I built a charging system that would fit in the bilge of our 24' Cruisers Gran Bateau. It came equipped with a small electrically powered refrigerator so battery life was quite limited. The first iteration of the charging system was a resounding failure but provided the needed information that allowed for a successful second build, which included converting an 8 horse Kohler engine to being water cooled. The charging system, which included two deep cycle batteries, independent of the primary battery, worked exceedingly well and was still performing to expectations when the boat was sold years later.

Your project has been interesting!

H
Wise people talk because they have something to say. Fools talk because they have to say something.

Glenn Brooks
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Re: Castor wheels for the mill

Post by Glenn Brooks » Fri Jul 15, 2022 3:40 pm

Live aboard,
Just saw your last page, where you’ve got everything built and in place! Nice work! I recently visited a retired machinist with a two man shop that served a now closed lumber mill near by. He made a good living sliding 20’ long shafts needing repair from the old mill through the hole in his shop wall.
Moderator - Grand Scale Forum

Motive power : 1902 A.S.Campbell 4-4-0 American - 12 5/8" gauge, 1955 Ottaway 4-4-0 American 12" gauge

Ahaha, Retirement: the good life - drifting endlessly on a Sea of projects....

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