Hand wheel to fit 3/8" bolt

thingiverse

I had to secure my patio door in a hurry, so I used a 3/8" bolt into a T nut that was pushed into the patio door and hidden underneath the existing hardware door lock plate (check out the photo). The only issue with my fix was that I needed to leave a wrench by the door in case of an emergency. By 3D printing a knob and pushing the bolt through it, I could easily open and close the door when needed, which isn't often during winter. It's great that the bolt pulls the door against the weatherstripping, making a tight seal. I've been switching to Fusion360, but for this project, I knew exactly what I needed and wanted a quick fix instead of diving into a new learning experience. Plus, I saved time and $4 by not going to Lowes. I'll get back to F360 soon enough. Version 2 has a slightly tapered head with the ribs cut back due to some misalignment of the door that caused the first knob to rub on the frame. This one won't have that problem. Version 2 does have a slight misalignment and will require some sanding to get the bolt to fit properly, so I recommend printing Version 3 instead. Version 3 was rebuilt once it was noticed that Version 2 was slightly off center. This thing was made with Tinkercad. You can edit it online at https://www.tinkercad.com/things/kQtuDzh7Lbh. Check out the video too: https://youtu.be/Pp5Gl8S2THg Print Settings: Printer: DMS DP5 Rafts: No Supports: No Infill: 20% Notes: Infill seems low for a structural part, but with all the curves and walls it's mostly solid where you need it. Sometimes solid isn't stronger.