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Recommend a good compass cutter?

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  • Member since
    June, 2016
Recommend a good compass cutter?
Posted by Murphy's Law on Thursday, March 16, 2017 7:40 AM

I'm looking for a good quality compass cutter for making masks and I'm really having a hard time finding anything. I found some made by Olfa but the smallest I have found they go down to is .394". I need one that goes smaller than that. I know I could make a blade to fit to a drawing compass but I'm really looking for one designed with the cutter made on it. 

  • Member since
    November, 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Thursday, March 16, 2017 10:00 AM

I think, to get circles that small, a punch set or hand punch might work much better.  Yeah, they will be more expensive, but a cutting compass will have a hard time at that kind of size.

For example, if I needed to draw a circle that small, I'd use a circle template rather than a regular compass.

 

Don Stauffer in Minnesota

  • Member since
    December, 2013
  • From: Orlando Florida
Posted by route62 on Wednesday, June 07, 2017 4:08 PM

I agree with Don, at that size a punch is needed.  I have a circle compass cutter and the smallest I can do it about 1/4 inch in diameter and even then that is tough to do.  A punch is the way to go.  They can be pricey, I have two sets of circle punches and they ran about $50 each but I get a ton of use out of them.  I use them on almost every build.  They are great for filling ejection pin marks, making small cockpit detail and for small masking needs just to name a few.

  • Member since
    November, 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Thursday, June 08, 2017 9:09 AM

Another thing I am going to try is to buy a swivel knife, and see how small a circle I can trace out using a circle template.

Don Stauffer in Minnesota

  • Member since
    December, 2002
Posted by 7474 on Saturday, June 10, 2017 9:06 PM
I used a compass (for drawing circles) and replaced the pencil bit with an xacto blade used for stencil cutting, they make small circles and the trick is to use light passes until it's all the way through instead of one heavy pass. I might try to design and machine an adaptor.
  • Member since
    September, 2012
Posted by GMorrison on Monday, June 12, 2017 11:32 AM

It can be done if you go slowly with an xacto.

Either from a drawn circle, and I have an aluminum drafting triangle that has a number of small holes in it.

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