Gridfinity vertical holder for J-B Weld 2-part epoxy syringes - also includes a slot for the stir stick
Based on Zack Freedman's Gridfinity parametric baseplate / bin model: https://myhub.autodesk360.com/ue2b114c8/g/shares/SH35dfcQT936092f0e439591db365903a026 - used under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike (CC BY-NC-SA) 4.0 International license, and released under the same terms.
The author remixed this model.