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Old 10-25-2013, 07:41 PM
packetfire packetfire is offline
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Join Date: Oct 2013
Location: Northeastern USA
Posts: 1
Default Novice with a Uni-Punch and a Habor Freight 6-ton press

I am not a metal worker, but I have a need to punch some aluminum ranging from 1/16th to 3/8ths with a small shape-punch, total punch circumference less than 1 inch. I will be punching hundreds, perhaps thousands of holes.

So, I have ordered a used Uni-Punch AJ 1 1/2-inch rig, and some off-the-shelf tooling is being provided by a vendor who knows Uni-Punches well.

This leaves something to apply some pressure. I did the usual math, and 6 tons is likely overkill, and the Harbor Freight 6-ton press was on sale for $69.00.

A few things that would be nice would include:

a) Some way to rig a pulley, foot pedal and spring return for the bottle-jack handle that applies the pressure.

b) Maybe another foot-pedal to operate the release valve on the bottle jack?

c) Some way to assemble the press so that it remains "square", for example, has any one assembled the thing, squared it up, and then drilled holes for cotter pins to keep the various joints from slipping out of "square"?

d) Or should the Harbor Freight press be returned as "useless", and something else be purchased in its place?

Can anyone point me in the right direction?
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habor freight press, unipunch

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