June 10, 2026

OptiBot - FREE Robot πŸ€– Built for FDM, FDM Color & SLA

Hey everyone! πŸ‘‹

Before anything else - this one really matters to me, and I'd love to hear from you.

OptiBot is a model I make specifically to work across FDM, FDM color (multi-color) and SLA / resin printing, as a clean multi-part assembly. So I have a small favor:

πŸ‘‰ If you print with FDM, drop a comment and let me know:

  • Which 3D printer do you use? (FDM, resin, color/AMS...)

  • What would you improve or change?

  • Which model would you like next?

Your comments shape exactly what I create, and every single one helps. πŸ™

OptiBot - an adorable chibi robot hero inspired by Optimus Prime from Transformers - and he's completely FREE.

He's ready for every print method:

  • 🧩 FDM - clean, easy print

  • 🎨 FDM color - 5 separate parts for multi-color / AMS printing in red, blue and silver, no painting needed

  • πŸ’Ž SLA / resin - crisp, detailed assembly for the finest finish

What you get:

  • πŸ—οΈ Keychain version - 50 mm & 100 mm

  • πŸ–ΌοΈ Display figure - 200 mm (full-color 5-part assembly + solid uncolored version)

  • πŸ“ STL + 3MF files included

πŸ“₯ Download free ( For everyone 😊 ) : SANIX3D.COM πŸ”—

Print him as a keychain, a colorful FDM figure, or a smooth resin build - and show me your prints, I love seeing them! πŸ“Έ

https://www.facebook.com/groups/sanix3d

Let me know in the comments - your printer, your thoughts, your ideas. I read every one. πŸ’™

OptiBot is an original fan-art tribute inspired by Optimus Prime / Transformers. Not affiliated with or endorsed by Hasbro.

Comments (8)

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Ashley and Jake Isenberg Β· June 20, 2026

Plugged it in to see how long it would take to print, the entire keychain that I sized down, an entire day for one in full color, the bigger file was 3 days plus just for one 😬 we try to keep our prints to under 5 hours and we use an H2S an A1, and an A1 mini. We're still messing with the fikes though. Love the designs you do, would love to see more free models, keep up the amazing work!

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SANIX 3D Β· June 20, 2026

Hello, I'm glad you like it! One day is probably due to the large number of color changes in a small area, but your comment helped me understand that and how to design future models so the colors don't need to change so often. Thank you for this important detail!

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Eric McCann Β· June 15, 2026

Very nice, thank you! (as far as printers... P1S, P2S, Snapmaker U1, Reflex RS and Anycubic Photon P1. I'm not picky about resin or filament, often use them both together.)

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SANIX 3D Β· June 15, 2026

Happy printing! I don’t have an FDM printer, but I do have the P1 from Anycubic, and it’s a decent printer! I’ll do my best to create more projects that can be printed with FDM!

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shawn sagenich Β· June 12, 2026

I use the snapmaker u1. The only thing I would add would be another plat where it only has 4 colors.

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SANIX 3D Β· June 13, 2026

Okay, I’ll keep that in mind for the future! But if I understand correctly, is it possible to combine 2 colors into one directly in BambuLab so that you still end up with 4 colors in total, or am I mistaken...?

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Denko Workshop 3000 Β· June 12, 2026

Thank you for the model it looks great!

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SANIX 3D Β· June 12, 2026

I'm glad you like it!!!