Suggestions on my Shop Press design

[Jlowe]

Been a long time in the making but finally making some progress on my shop press.

Went with version two drawing for the most part, so far I have the basics of the feet made, I have the uprights drilled and most of the plates welded on, head piece is done.

Haven't done anything bout the jack as yet, been have come up with some ideas for hands free operation.




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[Iron-Iceberg]

Very nice welds.

 

[Jlowe]

Thanks, not quite as nice as id like as I'm asking a bit much of my old mig.


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[2mJps]

One caution about the winch to raise and lower the table - we have a 50 ton at school and often I find the students haven't lowered the winch enough to take the tension off the cables, so when they start pressing all the force is on the cables instead of the pins.

You could put a spring on each side so there would be some give. I would never own a press without a winch its makes things so much easyer even on a small press. My press table is to heavy for 2 guys so it has to have one but i used a small press that was made of angle Iron the size of bed railing i had to unload the table to move it very unhandy.

 

[Jlowe]

Finally got the press upright on its wheels, stands at 2040mm tall.
Fair way to go yet but start buy making a base to join the uprights together to form a base for somewhere to sit tooling, but mainly to lock the legs together.
Once that's done I can join the two sides of the bed together and add gussets, winch for the bed/table, mount the jack and make it hands free operation.
I feel I'm only half way there


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[sz0k30]

"Stands at 2040 mm tall" REALLY?

 

[longlivepunk]

That's 80.3" if anyone was wondering. [emoji14]

The press is looking great, Jlowe!!

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[86turbodsl]

Good looking press. Ask yourself if you really need 50T. The one time i used a 50T press, pushing bearings out on wheel hubs, i had to clean my shorts after it popped. I've read somewhere that 50T presses can push axle tubes out of Dana60 center sections WITHOUT drilling the rosette welds. WOW.

 

[Kevin54]

Very nice job on the press.

 

[Jlowe]

Thanks guys, yes stands that tall[emoji6]

And I'm just running a 32t air/hydraulic jack that I hope to convert to foot control



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[Richard D]

It would be weird working on a job in another country, using metric. "Hey Fred, cut about 500mm off that 50x101" Just sounds funny to me!

 

[longlivepunk]

We have centimeters, decameters (no one uses those ones) and meters too. We're ca-raaaaaazy! [emoji14]

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[Jlowe]

Small update, got the bed sitting in place roughly, still a lot of work to do on the bed yet but it's at least looking like a press. I've got a small boat winch to be able to raise and lower the bed as it will be way to heavy to do manually.

Lower frame is in place to, couple more pieces of steel to go in it yet then it will then have something like cypress pine for a base.

Once the bed is finished I'll make start on modifying the jack and get it mounted. Still thinking about having it on a sliding mount.

Jlowe


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[king nero]

For the table, instead of placing the gussets like this : ^ put them the other way, like a downward facing arrow. Steel works better in tension than in compression.
I'd just put one vertical one in the middle, to help spread the load into the whole channel instead of in the upper flange.

 

[Jlowe]

Thanks for the input, I guess I drew it that way thinking it would push the load out towards the pins not giving any thought to tension and compression of the gussets.

Cheers


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[Jlowe]

https://vimeo.com/169344859https://vimeo.com/169344896

Made some progress, I have the winch and pulley system all sorted out, not finished as yet.
But the bigger part of the progress is I've modified the jack for inverted use, drilled and tapped for a gauge.

I'll be now remote mounting the manual pump and I'm sacrificing a 8ton jack so so that I have a small and large manual pump. Hopefully I've got the hydraulics sorted, I'll have to make a mounting block to accept both pumps and haven't decided if I'll bother with a three way valve or not. I figure the worst it will do is push the other pump up, no big deal.

I also spun up the jack base as it had quite a large hump in it, least now it will sit flat on the moving mount I made for it


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