Mini Paint Tumbler

(6/05/2025) Notice: After helpful feedback from fellow users, it appears that this might not be very effective at mixing paints. It is more effective if you spin it counter clockwise, then clockwise, then counter clockwise again, in order to agitate the paint, although this might take a very long time. It still partly works though, as some users have said. I will keep this page up in case people want to swap out parts.

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This is the Mini Paint Tumbler! 

 

It can mix small paints, including but not limited to Humbrol acrylic, Humbrol enamel, Citadel, AK, Vallejo, Tamiya, and pebeo acrylic (101 x 33 mm max). Three risers are included to move the axis of rotation towards the centre of the paint containers, so the paint can properly mix. Works well with acrylics but enamels need a final stir. Gear ratio is 1:2.25.

 

If you have any questions about the model/assembly please let me know. 

 

Update 1 (09/03/2025): Changed design of handle grip to increase strength.

Update 2 (14/03/2025): Added citadel riser.

Update 3 (11/04/2025): Increased infill & number of walls (+ gyroid) to increase shaft strength.

Update 4 (15/04/2025): Created one riser to fit AK, Vallejo, and Humbrol acrylic.

Update 5 (18/04/2025): (1) Handle fits onto shaft more tightly. Now much more responsive.

                                          (2) Created one riser to fit citadel and Tamiya acrylic.

                                          (3) Made inside lip on top plate larger to fit Tamiya acrylic.

                                          (4) Added debossed numbers on risers.

                                          (5) The risers can now stack together and sit in the model to reduce storage space.

 

Quick Assembly Video

Assembly Instructions

	1. Start with the wall indicated as number 2, with the number at the top.
	2. Face the spacers on the wall towards the right.    Choose the large gear with the spacer, and face the spacer towards the wall.   Insert shaft 1 through the gear, and leave 18 mm on the left side (as shown).
	3. Choose the small gear with the spacer, and face the spacer towards the wall.   Insert shaft 2 through the gear and leave 26.5 mm from the spacer to the end of the shaft (as shown).
	4. Insert the second large gear on shaft 2.
	5. Insert shaft 3 on the last small gear and leave 20 mm (as shown).
	6. Put wall 1 over the shafts on the left-hand side, with the wall spacers facing inwards.   Put wall 3 over the shafts on the right-hand side, with the wall spacers facing inwards.
	7.
	8. Insert handle grip onto handle base.    Insert handle assembly onto shaft 1.   Twist the handle grip and it should freely rotate.
	9.
	10. Screw the two nuts onto the threads, with the side that printed on the build plate facing downwards.   Nuts will gradually loosen up.

	11. Add the paint holder onto shaft 3.
	12.
	13. Use the correct risers for the associated paint.
	14. Done!

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