Thingiverse

Accessible Abacus

by ML_Makerspace

4 Downloads

6 Likes

0 Makes

A single piece 3d printed version of a Cranmer abacus. This abacus can be fitted with pipe cleaners as the rods and 8 mm inexpensive wooden beads with an outer diameter of 8.0 mm and inner diameter of 2.4 mm.

The print takes 4.5 hours at .24 layer height, 30% infill, and 75 mm/sec print speed. There are no supports or bed adhesion necessary.

Thank you to Kanay for inspiring the original tiny abacus I created for Mountain Lakes Math Day.

Thank you Monique Coleman for explaining the practical needs of a student's abacus. I look forward to you and your student's feedback. Please share design and print feedback!

Version #2 Highlights
1 - Abacus counters are now rounded cubes (instead of semi-spheres)
2 - There is an abacus backing, allowing you to paste on contrasting color paper or felt backgrounds.
3 - A one piece 3d print! Pipe cleaners act as rods, which is inexpensive, color customizable, and provides a way to naturally keep counter beads in place
4 - Wooden c

Source

Thingiverse

What you need to print this: Beginner Medium confidence

Why?

print-in-place design · no supports

Support-free Print-in-place

Supports 0/3

Assembly 0/3

Settings 1/3

Bed size 0/3

Post-process 0/3

Printer

FDM / FFF

File format

STL

Material

PLA, Wood PLA

Est. print time

4.5 h

Software

Cura, PrusaSlicer, or similar

Frequently Asked Questions

Does Accessible Abacus need supports when printing?

Nope — Accessible Abacus is print-in-place, so it comes off the bed ready to use. No supports, no assembly.

How long does it take to print Accessible Abacus ?

According to the design notes, Accessible Abacus takes approximately 4.5 hours to print at standard settings (0.2 mm layer height, 15% infill). Actual print time varies based on your printer speed, layer height, and infill density.

What file format is Accessible Abacus available in?

Accessible Abacus is available in STL format. These files can be opened and sliced using free software such as Cura, PrusaSlicer, Bambu Studio, or OrcaSlicer for FDM printing, or ChiTuBox and Lychee Slicer for resin printing. The download is provided through Thingiverse.

Is Accessible Abacus free to download?

Yes, Accessible Abacus is available as a free download through Thingiverse. Always check the license on the original platform to understand commercial use, remixing, and attribution requirements.

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Accessible Abacus

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