On Tue, 18 Sep 2007 01:01:40 -0700, jkn wrote:

On Sep 18, 7:18 am, Cicero wrote:

[...]

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Most hydraulic 'bottle' jacks for cars have a screw section at the top
for fine adjustment. You might be able to adapt one of these but it
might be better to use the hydraulic action instead of a screw. You can
see the general idea he

http://www.machinemart.co.uk/shop/se...r/press/page/1

and he

http://images.google.co.uk/images?hl...press&btnG=Sea...

Cic.

I had wondered about using a bottle jack, but was concerned about the
return of the table, and a few other things. FWIW I've just come across a
design for a press based on one on t'web:

http://www.mossworks.com/docs/BottleJackPress.pdf

Looks quite suitable for my purposes, thanks...

J^n

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That one looks quite good, although the return springs (bungee cords)
might not give a smooth return with the possibility of the top plate
tilting and jamming. Nonetheless, it's a clever and simple way of doing
the job - possibly a bit dangerous as those cords will need to be under
considerable tension to retract the column of a bottle jack.

Cic.

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