Pro Acryl Monument Hobbies Primer and Medium Rack

Monument Hobbies Pro Acryl Primers and Mediums 120ml Bottle Rack

This model is a simple “rack” used to keep the 120mL bottles of Primer or Medium from Pro Acryl organized and upright. I expect that a lot of 120mL bottles from various sources also fit fine in these slots- for reference, the one's I tested are ~41mm in diameter.

I've tested the fitment with all of the 120ml sized bottles I have from Monument Hobbies including:

- Primer - Newsh Medium - 1-step Special Sauce Medium - Glaze and Wash Medium This rack was designed around a 2x4 Gridfinity standard unit plate size, which fits 5 bottles cleanly as shown. For those who don't want to utilize gridfinity, a NOGRID smooth bottom variant is also included in the profile.

This model is part of my collection of 3D printed mini painting stuff, Paintfinity.

For all of my models in this collection, P1S and A1MINI sized prebuilt profiles are provided. No supports are used on anything in the collection, and it's been optimized for a 0.4mm nozzle with tuned wall thicknesses throughout.

I use 2 walls, 0.2mm height, 10% grid infill print settings for my included plate profiles.

Paint-fini-what?

Batch painting workflow with mini painting handles Paintfinity is my solo run passion project with the goal of making miniature painting more accessible, efficient, and ergonomic. I try to design models that work together to solve as many common pain points as possible. I've commission painted full time for the last 10 years, with an emphasis on large projects and armies. I've learned that there are a lot of small things that add up to a much smoother experience with these type of projects. These small optimizations can trickle down to benefit everything else you paint too!

Gridfinity is optional:

I built my models around the standard 42mm Gridfinity unit with pockets for 6x2mm magnets. I made smooth-bottom NOGRID variants too! Gridfinity is an open source system originally created by Zach Freedman, make sure to check out Zach's other work!

As of September 2026, Paintfinity currently has:

62 Unique Models and 50 Variants for a total of 111 individual modeled objects!

The whole paintfinity project is free to download and ready to print right now!

Check out the MakerWorld Collection for Paintfinity here: https://makerworld.com/en/collections/17272977-paintfinity

or visit my website:   https://paintfinity.chieflivegaming.com/

Want a model for your bench that you can't find? Leave me a comment with suggestions or requests. I'm still pretty new to 3D modeling and I love hearing your feedback, good or bad!