Reinforced Wall Mount for 1up Bike Racks

I designed this wall mount to get my 1up USA Equip'D rack off the garage floor and store it securely. It's a simple, wall-mounted hitch receiver that uses the rack's own 2" bar and anti-wobble tightening ball to hold it in place. The entire model is designed to be a straightforward print that requires no supports. 

I wanted to make sure this was sturdy, so I focused on a few design aspects:

• Reinforced Mounting Holes: To ensure a solid connection to the wall. There is a 1" diameter area around the top and bottom mounting holes with 100% infill.
• Thickened Receiver Box: The main 2" receiver area is built up to handle the load of the rack over time. The top and bottom surfaces which carry the primary load have been increased to a 50% infill.
• Reinforced Ball Ramp: The surface where the anti-wobble ball tightens is also reinforced to handle the clamping pressure without deforming. The corner where this ball contacts the mount has been increased to 100% infill. Note that even so, over time the steel anti-wobble ball will likely create a small indentation in the plastic, so do not over-tighten.
• ½" plate thickness all around with gussets above and below the hitch receiver. This model weighs 

Printing Notes

These are the settings I used for a successful and strong print.

• Material: I strongly recommend using PETG, PLA+, ABS, or ASA for their strength and heat resistance. I used PLA matte, but it can deform over time under constant load, especially in a hot garage. I would recommend PETG.
• Walls/Perimeters: 3 walls are used universally but could be increased to 5 or more if more strength is desired.
• Mounting: Mount this directly into a wall stud using appropriately sized lag screws (I used .25" screws with hard washers). Do not mount it only to drywall with drywall anchors.

Important Disclaimers:

Use this model at your own discretion. The strength and long-term durability of your printed part depend heavily on your specific filament, print settings, and the environment where it is stored. I have not tested throughout the seasons during wide temperature and humidity swings.

This mount was designed to support a centered load. Any loads that place the center of gravity outside of the vertical center of the mount could decrease the longevity of the mount.

I have personally tested this mount with a single 1-bike 1up Equip'D rack (weighing approx. 27 lbs / 12.25 kg). It has not been tested with heavier 2-bike configurations or with add-ons. I would not personally add much more weight to this mount. That being said, my print has held up well at this load so far.

High or variable temperatures and constant loads can weaken materials like PLA, potentially leading to failure. Please inspect your print regularly for any signs of cracking, warping, or stress. For safety, do not place this mount high off the ground, above anything fragile, or near anything that could become damaged if the mount were to fail.

Finally, please be aware that this model uses about .68 kg of filament. It is what allows it to have the strength necessary, but it does consume a lot of filament. 

Enjoy!