How to make precise, repeatable cuts in ABS plastic sheet

cuttingplastic

I need to make a few fairly repeatable and accurate cuts out of a 12" x 12" x 1/8" piece of ABS plastic.

I've tried sawing, scoring with exacto knife followed by breaking off, and of course sanding. The issue with these methods is 1) it's time consuming, but more importantly 2) the pieces aren't 'similar enough', they don't repeat within, say 1/8" (more or less may be sanded, oftentimes not exactly straight, etc).

So one idea I had was to use something like this:

https://www.amazon.ca/X-ACTO-Commercial-12-Inch-Guillotine-26612/dp/B002JGMIA8/

I.e. one of those paper cutter tools. I don't mind if it takes a bit of elbow grease to get the cuts going, my main concern is that I'll get a long, straight-as-possible edge that I can repeat as consistently as possible about a dozen times.

Before I invest in something like this, what do you think, is this a good idea? Is there anything else you'd recommend for my problem? Thanks!

Best Answer

I think the best solution for this job would be to use a table saw. These are obviously not cheap, but you could probably find one that is not too expensive, especially if you have an 1/8" tolerance on your pieces. A used one can also be had reasonably, or you can rent or borrow one.