Chair Arm Mouse Pad Tray

thingiverse

Please give me a like up top if you think this project is useful, and I'd love to read your feedback in the comments if it helps you out or needs improvement. *** *Update 3/6/21 - I have uploaded a left handed offset as requested. I was looking for a mouse pad tray that could mount to the arm of my office chair at home. The best one for me was [thing 4574922](https://www.thingiverse.com/thing:4574922) from [lymanit](https://www.thingiverse.com/lymanit/designs). It was almost perfect, but for two problems specific to me. First, my Anycubic Kossel Linear Plus does not have enough build plate to print his tray. The corners were sticking out. So I cut the bracket mating section out and made a 220mm round version that printed nicely on my delta. - After printing it I decided to design an offset version as well. It moves the mouse pad to the right, out of the way of the chair seat a bit. I have not tested this one, but the mounting geometry is exactly the same. ~~Mirror it in your slicer for a left handed offset.~~ I made one! Second, I felt that the bracket needed more support on my particular office chair. So I extended it to add three more strap holes, while still fitting on the delta's build plate. It's just under 206mm long. - After assembling this one, I doubled the width of the strap holes in the model. It should be easier to get your Velcro or lacing through. My pictures show the smaller holes, before this change. It works well. I'm using it now, with a mousepad I had in my backpack, to write this summary. This was a tight fit. I didn't have to sand or cut, but it was tight. I took off .25mm from each side before uploading the model, so hopefully you won't have that problem. I do have a couple of modifications in mind for the "maybe some day" file. It would be nice to make it tool-less and either quickly detachable, or foldable/collapsible. I can already see myself mindlessly smashing it against my desk in the near future. ~~Also, an offset version of the round tray would be ideal.~~ I made one!