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  • mechanical

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  • math

  • onshape

  • calculator

  • Curta

Curta Calculator Type I scaled at 3:1
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Released 2025-05-10
Details
Files(29)
Makes & Comments (0)

Summary

Curta-Type-I-3x

3x scale Curta Type I for FDM 3D printing

Please see the BOM for information about how to print the parts, what non-printed parts to gather, and suggestions on how to source them.

The build manual should provide a rough idea how to assemble the calculator.
The assembly video should also help.

For additional questions and help, please join us on Discord

Contributions

The calculator itself was originally designed by Curt Herzstark and produced by Contina AG Mauren.
mcmaven's Curta Calculator Mods heavily inspired my changes to the carry levers. I highly recommend checking out his other changes too.

Originality of the Model

The author declares that this work is their personally shared model

Original creator:
mwu
Reprint source:https://www.thingiverse.com/thing:1943171

This model is licensed under the following terms:

Credit must be given to the creator

Models(29)

  • tens_slide_bearing_x15.stl

    7.31 KB

    2025-03-18

  • carriage_body_pin_x2.stl

    56.33 KB

    2025-03-18

  • crank_handle_pin.stl

    1.56 MB

    2025-03-18

  • clearing_stop_pin_sleeve.stl

    84.46 KB

    2025-03-18

  • tens_slider_for_turns_counter_x5.stl

    125.67 KB

    2025-03-18

  • selector_knob_x8.stl

    186.02 KB

    2025-03-18

  • tens_slider_for_results_x10.stl

    123.52 KB

    2025-03-18

  • crank_handle.stl

    915.32 KB

    2025-03-18

  • main_axle_and_step_drum_top.stl

    1.79 MB

    2025-03-18

  • 10221.stl

    235.34 KB

    2025-03-18

  • carriage_body.stl

    1.58 MB

    2025-03-18

  • 10230_-_410008_x15.stl

    216.29 KB

    2025-03-18

  • selector_shaft_top_x8.stl

    141.39 KB

    2025-03-18

  • 10219_-_410002.stl

    336.02 KB

    2025-03-18

  • digit_selector_screw_x8.stl

    605.45 KB

    2025-03-18

  • upper_outer_sleeve.svg

    7.50 KB

    2025-03-18

  • crank_collar.stl

    3.62 MB

    2025-03-18

  • Input_Digits-new.svg

    39.63 KB

    2025-03-18

  • upper_housing_numbers.svg

    23.66 KB

    2025-03-18

  • carry_lever_spring_tool.step

    40.92 KB

    2025-03-18

  • results_dial.svg

    52.88 KB

    2025-03-18

  • lower_housing.svg

    18.45 KB

    2025-03-18

  • carry_lever_spring_tool.stl

    108.38 KB

    2025-03-18

  • 10220_-_410003_x15.stl

    355.06 KB

    2025-03-18

  • reversing_lever_arrows.svg

    3.04 KB

    2025-03-18

  • selector_shaft_bottom_x8.stl

    1.33 MB

    2025-03-18

  • carry_lever_spring_tool_new.stl

    651.16 KB

    2025-03-18

  • CarryLeverSpringTool.pdf

    114.97 KB

    2025-03-18

  • Curta_Finishing_guide.pdf

    582.65 KB

    2025-03-18

  • View all(29)

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