Paper cutters and circle cutters for cutting plasticard?

[Ovidius Incertus]

Anyone ever tried these for cutting plasticard or shapes out of plasticard?

 

Something like these: 

 

http://www2.fiskars.com/Products/Crafting-and-Sewing/Paper-Trimmers/SureCut-Card-Making-Paper-Trimmer-9

 

Although they're made for paper, I suppose a thin plasticard sheet would do fine in there and, at the very least, you can score it and snap it off.  Handy for cutting strips and very straight lines.

 

And for cutting circular pieces of plasticard, has anyone used a circle cutter such as this:

 

http://www.amazon.com/Fiskars-93807097-Circle-Cutter-Replacement/dp/B0006HUJ0S

 

Just looking for solutions to problems I've had, namely cutting perfectly straight lines in my plasticard (even using a straight edge, it's tough) and cutting circles.

 

Thoughts?

[Gurth]

I own two types of circle cutters. One is this type by Olfa:

 

http://ecx.images-amazon.com/images/I/41oeqaYNJ3L._SX300_.jpg

 

and all I’ve ever managed to cut with it are spirals. The other one is this model:

 

http://www.lionop.com/img/productimages/m/C1500.jpg

 

which seems similar in concept to the circle cutter you link to. That works far better than the simple divider-like Olfa thing, and is more accurate.

[Bung]

Well for circles i use 2 sorts of things.

For the big ones a pair of compasses from the hardware store used to make marks on woods and metal.

 

http://www.rc-machines.com/media/images/org/200082002537_74868.jpg

 

For small ones this things, no clue how they are called in english.

 

https://s3-eu5.ixquick.com/cgi-bin/serveimage?url=http%3A%2F%2Ftse1.mm.bing.net%2Fth%3Fid%3DOIP.Mec12a2cea2dac6af81081ad7cf132ec8o0%26pid%3D15.1%26f%3D1&sp=faeef0ae4aaef7f99d8e7a4d19d9ad5e

 

https://s3-eu5.ixquick.com/cgi-bin/serveimage?url=http%3A%2F%2Ftse2.mm.bing.net%2Fth%3Fid%3DOIP.M6a062889a10e85538a9b85f72030363bo0%26pid%3D15.1%26f%3D1&sp=686caff68087a410787fb1d45915852d

[Subtle Discord]

I second just using a good compass with two points to scribe the desired circle into the plastic sheet. Fiskars products are rather overpriced for what they are, and really intended for paper. (I do love their ring-style razor handle) I don't think they would perform well on plastic. Have a look on Page 25 of my WIP plog and you can see exactly how easy it is to use a $10 compass wit two points to scribe perfect circles. The trick is just scribing a good circle into the plastic on both sides and then just flexing the plastic to break the disk free. Works every time, even on reasonably thick sheet.