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Gunpla Catapult Launch Motorization and LED Diorama Parts 3D Printer File Image 1
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Gunpla Catapult Launch Motorization and LED Diorama Parts

and CRAFT 3D avatarand CRAFT 3D

February 13, 2026

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Description

It is a model that electrifies the catapult of robots such as gunpla.

Please refer to the images and videos when assembling (the catapult launch speed has been edited).

This file is provided as a free sample for personal, non-commercial use only.

Feel free to support me at:
https://buymeacoffee.com/andcraft3d

・3D data is modeled on the premise of an FDM 3D printer.
・Parts may be tight or loose due to individual differences during 3D printing.
・For models with lh in the file name of part numbers 1 to 21 in the image image, please 3D print the right part using the mirror function of the slicer.
・Print parts 16, 17, and 18 with clear filament.
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The following parts with names enclosed in a red frame in the image image must be procured separately by each person.
Body
・KOTOBUKIYA "Mechanical Chain Base R(B)" x1
・BANDAI "System Base 001" x1

Base
・12~18mm thick 440x240mm-wood boardx1

Slide unit
・Φ6x3mm-neodymium magnet x8
・Φ8x306mm-pipex2
・M6 nutx1
・Bearing-6x10x3mmx1
・M6x285mm full thread x1
・Φ3 to Φ6mm-joint x1
https://aliexpress.com/item/1005002015620915.html?spm=a2g0o.order_detail.order_detail_item.9.37421691160qWm&gatewayAdapt=glo2jpn
・Geared motor x1
https://ja.aliexpress.com/item/33022320164.html?spm=a2g0o.order_detail.order_detail_item.7.37421691160qWm&gatewayAdapt=glo2jpn

Switch
・Pitch 6.5mm-micro switch x2 (for slide unit)
・Hole diameter 6mm, 13x10mm toggle switch x1 (for geared motor)

LED (For reference, I cut it in half and connected it with a wire)
・1M 10mm wide tape LED x1
(If you can control the color with the remote, it comes with a receiver.)

Power cord etc...
・For reference, I diverted the USB cord of the tape LED.
・For reference, I used 24AWG wiring.

Wiring reference
In my case, I switched forward/reverse rotation with a toggle switch and put a microswitch in the middle.
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The following screws are required to attach each part.
Parts may be tight or loose due to individual differences during 3D printing.

・M2x5-12 hex cap bolts for mounting parts 19, 20, 21, 27.
・M2x12-15 hex cap bolts for attaching part 27 and microswitch.
・All other parts are M3x5 hex cap bolts.
・For wooden boards, use about M3x12 countersunk tapping screws.
・If the screws are loose, try using longer screws.

License:

Creative Commons — Attribution — Noncommercial — Share Alike

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