I have an old paper trimmer. The style that they call guillotine with the big knife not the rotary blade kind.
I bought it cheap at a yard sale. It never cut truly square. The scale at one end that you hold the paper against is set in a slot in the deck so that cannot be moved. The steel bar that the blade cuts along to provide a scissor action is held down with wood screws. It seems that this bar was set off square when this thing was made. You couldn't easily reposition this bar because the existing hole always guided the screws into the same position.
So I took the bar off and using my trusty framing square and some good old JB weld moved that bar so that it was square to the back stop.
The blade sounds as if it is cutting, that is the blade rubs against the bar, but the paper doesn't get cut. It mostly just bends down. It seems as if there is a gap that is too big.
Anybody got a link that describes any adjusting that can be done? I could just toss the thing, but I hate to give up on this piece of junk and want to fix it for the satisfaction.
Don't tell me to buy a new one. I can figure that out myself.
Charlie