How to Smooth PLA 3D Prints – A Tutorial for Large Cosplay, Armor,…

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Welcome to Part 1 of “However many i feel like making” 3d Printing tutorials!

Across Reddit and Instagram i’m constantly getting asked “How did you sand that?” or “That mustve taken days to sand that smooth!”

Well i’m here to show you, it doesnt! With some confidence and a cheap power tool you can knock down and erase layer lines on PLA prints in a few minutes!

Now clearly this wont work with small detailed items but for large armour prints and big pieces this can take you tons of time on post-work and help you gain a flat smooth surface without layer after layer of primer!

If you have any questions or comments please ask away! I’m an open book of knowledge and i’m learning as i go along too!

I will also be making more PLA and 3d Printing post-work Tutorials so stay tuned!.

Thank you!

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~~My recommended 3D Printers~
Creality Official Website:
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#pla #smooth #3dprinting

Where to Buy Filament

Disclosure: Some of the links below are affiliate links. If you make a purchase, we may earn a commission at no extra cost to you. This helps support this site.

These links go to Amazon with our affiliate tag. If you prefer to support local retailers or buy directly from manufacturers, we encourage that as well!

Frequently Asked Questions

Can you 3D print working threads and screws?

Yes, working threads can be 3D printed with proper settings. Layer height of 0.1mm or finer works best, with slower print speeds improving quality. CAD tools like FreeCAD’s Fasteners workbench help generate accurate thread geometries.

What are the best settings for 3D printing threads?

Use 0.1mm layer height, slow speeds (~10mm/s), and tune thread scaling parameters. Common starting points: screw scaling A0.990/B-0.050, nut scaling A1.030/B0.100. Always test print to calibrate for your printer and filament.

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