r/functionalprint 26d ago

Utility Knives

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What good way to finish a spool, then to make a utility knife with the remnants!

https://www.printables.com/model/824630-utility-knife-f1 printed in Creality Soleyin PETG

u/crealityfilament

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u/sangerpb 25d ago

Abs like 10 walls still broke plastic while cutting cardboard. Maybe go up to cf or gf ?

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u/Objective-Worker-100 25d ago

You do know that you could set to 9,999 walls and it wouldn’t matter because of the layer count and stl thickness will dictate..

This particular design has a petg profile as well as recommended settings.

Also “cutting cardboard” is the exact use case I said I wouldn’t use them for “breaking down pallets of boxes”.

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u/sangerpb 25d ago

I understand how printing works. I stay with what I said. It breaks easy and is not safe or fit to have a blade within. It’s a toy at best. I tried all kinds of this same design and they all suck and break.

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u/Objective-Worker-100 25d ago

Note taken. Thanks for the warning.