A small box to keep the most common ND filters in. 2, 4, 8 and 16. Printed in PLA, the model is a 0 clearance  fit, that's what hold the lid on. No supports need, recommend a low infill like 5% for gyro-grid.

TBS ND FILTER v2

A 6 mm version of the as the original Märklin pillars also had.

Märkline_Bridge_pillar_6mm.3mf

The original Bridge pillars from Märklin that you can get today are usually heavy distorted and the dimensions don't hold true.
So i got a hold of a few that still held their shape and took measurements of them.

The three models are 60 mm, 30mm and 12 mm.

They are designed to be printed on a SLA printer. I have not tried to print them using a FDM printer. But if you do, please share your results.

Edit: Depending on what resin you use the model might shrink a bit. Since the tolerance are quite tight would recommend scaling them up perhaps 0.5%, probably not more. But all of that depends on the resin you use. I used Elegoo Water Washable-Ceramic Grey.

Märkline_Bridge_pillar_60mm.3mf

Märkline_Bridge_pillar_12mm.3mf

Märkline_Bridge_pillar_30mm.3mf

It's simple stand for two liquid soaps or lotions with a Voronoi twist.
The internal diameter is 73 mm, so it should fit most soap liquid dispensers, but do check the diameter of yours first.

It was created with Fusion360 and Meshmixer.

I printed this on the Elegoo Saturn with Elegoos´s Water washable  ceramic grey.  Bottom exposure 30 sec, other layers 3 sec.

Voronoi Liquid soap holder

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