Medigun cosplay prop

thingiverse

This was meant as an entry in to a 3d printing cosplay design contest, but I missed the deadline for a bit. I still wanted to submit the files so everybody can use them and hopefully have their own medigun prop too. I learned a lot through doing this, and I tried my hardest to minimize support material. Print Settings Printer Brand: Prusa Printer: Prusa Steel Supports: Yes Resolution: .2mm to .3mm Infill: 15% Rectilinear with 3 perimeters Notes: Print the following amount of each part with these layer heights as a general guideline: 1x Rear Fitting Pt1 (.2mm) 1x Rear Fitting Pt2 (.2mm) 1x Rear Fitting Pt3 (.2mm) 1x Main body (.25mm) 1x Main body pt2 (.25mm with a brim or raft to prevent warping) 2x Main body buildout (.1mm) 4x Main body detail (.1mm with a brim or raft) 2x Large handle hinge (.2mm) 1x Large handle (.2mm) 1x Hand grip (.2mm) 1x Medigun tube Pt1 (.2mm) 1x Medigun tube Pt2 (.2mm orient so the flat side is facing up and enable supports) 1x Medigun tube Pt3 (.25mm) 1x Medigun tube Pt4 (.25 orient so the step up is facing the bed, enable supports) 1x Medigun tube Pt5 (.25 orient so the large opening is facing the bed, enable supports) 1x Medigun tube face plate (.1mm or .05mm if the machine is well tuned.) 4x Nuts (.2mm brim enabled) 2x washers (.1mm nylon or PETG works great if you have it.) Post-Printing There will be a visual assembly guide soon, but for now there's a set of written instructions. To build and assemble this prop, you will need the following hardware. 2x 1/4'' wood or meal rod cut to 1'' 2x 1/2" bolt, 2 1/2'' long 2x 1/2'' nut 1x 3/8'' rod cut to 23 3/8'' long 2x 3/8'' nut 4x 5/16'' threaded rod cut to 3/4'' long 4x 1/4'' neodymium magnets To assemble things, it's easier to imagine everything as three main components, we'll call them the main body, the rear fitting and the medigun tube. Rear fitting: 1) Cut the 3/8 threaded rod down to size, this will be a handy alignment and clamping tool for the rest of the assembly. It should easily slide through all the pieces. 2) Taking rear fitting pt1 and pt2, put a bit of glue on the largest flat sides, then clamp using the threaded rod and nuts until dry. 3) Take the rear fitting pt3 and place a bit of glue around it's circumference, then use the rod to clamp and align. Main body 1) Glue the main body and main body pt2 together. 2) Glue on the hand grip in to main body pt2, there's alignment pins to help 3) Push in the 1/2'' nuts in to the main body, there's no need to glue them. 4) Glue on the main body build out, you can use the 1/2 bolts to help align parts. 5)Assemble the whole large handle by gluing a round 1/4 by 1'' piece in to the handle hinge, then glue that to the large handle. A quick setting epoxy works great here. 6) Glue on the Medigun tube pt1 on to the main body Pt2 and use the threaded rod and nuts to clamp and align. 7) Place on the main body details slowly and with care. The distance from corner to corner on the pieces should be about 3/4 of an inch (.780 if you have calipers) 8)Attach the large handle on to the main body assembly by placing the washers between the two then threading in the 1/2'' hex bolts. Everything should move freely and easily, if not, apply some paste wax to the bolts. 8) Glue in the cut pieces of 5/16'' threaded rod in to the holes on the main body pt2, then glue on the 3d printed nuts. Be sure to deburr the threaded rods with a file or belt sander. medigun tube 1) Glue Medigun Pt2 and Pt3 together, you can use the threaded rod and nuts to position the parts nicely. 2) Glue Medigun Pt4 to Pt3, it should snap together and be a snug fit. If it wont go together, don't force it; sand the joint and then try again. 3) Glue on Medigun Pt5 to the whole Medigun tube assembly and use the threaded rod to clamp it while every thing is drying. 4) Add magnets to the corresponding holes on Medigun Pt5 and the Medigun tube faceplate, make sure their polarities are correct! Final assembly: If you've printed the parts in the correct colours, you're ready to assemble. If you haven't, use 120 grit sand paper and work your way up to 320 or 400 until you have a surface quality you're happy with. Then prime with a filler autobody paint and then the colours of your choice. It's easier to sand and paint while pieces are separate rather than all together. 1) Gather the three pieces and then place glue on where they join. Insert the threaded rod through them all and gently clamp by tightening the nuts. Clean up any joints if needed, and then then add some weathering! How I Designed This I used Fusion 360 to design this and made it to scale and accurate by using an attached canvas on one plane and then tracing along it. I'm a little new to it, so I used only sketches to make this, leaving things a bit messy. Learning to use components should be on everybody's list of things to use! If you have any requests, please PM me and I'll