hand guillotine

[johnakay]

what is the cause .when I cut a plate say 3mm it leaves a sharp lip or edge.
do the blades needs to be closer.

 

[Paul.]

It probably needs a blade regrind , and / or setting up, the blade gap will vary depending on the material, but a rule of thumb is to set the blade gap to 10% of the material thickness, so for 3mm it would be about 0.3mm, but if the shear edges are worn it will never cut properly whatever the gap.

 

[Normsthename]

Hi John (again!)
Even on a professional guillotine you will get a burr that needs removing.
How big a 'lip' are we talking about?

Andy

 

[johnakay]

about 1/16th" to 1/8th".
it only does it on the heavy stuff like 3mm to 5mm.
thin material its ok !
its been over 8 years since I last work in a fab shop so I forget what is what.
my last job all I did was to weld no fab or any sort.

 

[runnach]

I go along with Paul, one other thought, do you have a material thickness selector, normally a lever at one side of machine, perhaps this function does not function correctly?

Oops, just noticed it is a hand guillotine, ignore the latter part of my reply..........sorry