Punching holes through thick parts

[bpgeygolpher]

Centering the screw drill can be a challenge, I use a metal circle template placed on the paper at the hole location. That keeps the drill from wandering.

[outersketcher]

I have a lot of holes in the kolywopter. I use hand drills for the tiny holes. And a Martha Stewart screw punch I found at a craft store. (cost me $6.00 at the time) I also grabbed a set of automotive hole punches for the larger holes. The automotive hole punches work okay. But they are designed for steel and so dont have as clean an edge as I'd like. I think it would be BEST to get a hole punch set designed for leather. Like this one.


Also, I found the best practice is to punch out the holes in each card-stock layer BEFORE assembling them into a thicker part.

And yes. a good smearing of crazy glue does wonders to stiffening up a part that requires a large hole in its center.

[kriszmesz71]

Hi, the question is if the thickness of 4 mm emerges as a layered one or a "one piece". If you glue it in, say 4 layers I would cut each layer separately through. This results in the nicest cut. But, in the same time, this tiny place is probably hidden behind the wheels so it is not really observable. Or your master (artist or modelling) knife probably has a longish wedge shape blade and so it does not cut the rims so much. 4x 10 openings is not a quantity.

[John Wagenseil]

If you have a drill press, brad point drills used for making clean edged holes in wood, will drill a neat hole in paper, if paper is backed up with piece of scrap wood.