Make sure the slip roll gears are lubed and in adjustment (Biggest
problem) and either use an appropriate dummy piece in thebrake or put
a suitable radius on the brake punch (it's SHARP)
They are a lot nicer if you replace all the cheesy adjustment screws
with proper knobs, levers etc. Also check for wear at the adjustments
where the screws weren't cut off square.
Mine was second-hand and nothing had worn or broken, but the previous
owner hadn't been able to cut [plastic sheet?] with it. I had to
fiddle with it a lot to get it to cut 1/16" aluminum the full width
without the upper blade twisting back part way through the cut. It
works a lot better with 0.050 aluminum, likewise with steel less than
the suggested maximum. After a few heavy cuts the shear needs
The only good way I found to bend accurately was to redo the back gage
with threaded rod and nuts and measure carefully on each end from the
gage to the point of the upper die. The clamping tee screws that came
on it broke off with finger pressure.
I ran a company model shop once that had a well-made 'Triok' 3-in-1
combo machine, but it wasn't really much easier to use than the
Chinese one. The shop also had a Pexto shear and finger brake, which
I'd love to own but don't have the space. I tried making things on the
separates and the combo and found that there wasn't much difference in
what they could do although the combo was slower and more awkward.
The table will bend or break in the middle if you try to exceed the
shear limit. BTDT. It's $34 from HF parts. The unit is top heavy. Bolt
it down securely, or consider what a couple hunderd pounds will feel
like on the tops of your feet. The roll and brake work well.
Pics of my Stand for mine here:
Oops, never put them in the dropbox...
Dweller in the cellar
There used to be a nice web site showing how to strengthen the machine, but I
have lost the url. It involved bolting a strongback on the back side of the
blade in place of the stiffening strap. It was about a 1/2" x 3" bar that went
from end to end and prevented the blade from flexing. The owner was able to
shear fairly heavy stainless steel after the modification.
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