Zombrex vaccine Auto-Injector (actually working)
Description
Credits for the label go to aonomus. I Just rearranged the contents to fit the 89x42mm labels which I use (Software: Dymo LabelWriter to open the .label file). # Attention: This is a "working" auto-injector. This is NOT A TOY! I am not responsible for ANY injuries caused by building and operating this design! ## Update 2019-11-03 * added openSCAD V2 sources * added cardboard packaging design (print in 600dpi, use this file: https://thingiverse-production-new.s3.amazonaws.com/assets/e2/ce/d6/81/43/Zombrex_Packaging_V2.png) * refined some parts (see V2 files) * "Needle Guide" isnt required any more, instead you can use "Needle Bumper" - my centrifuge tube broke after 8-10 uses since the syringe needle plastic got rammed into the front hole. The bumper fixes that issue while simultaneously acting as the needle guide * added little demonstration video: https://youtu.be/K09eIKxpLcM NOTE: Zombrex needs to be injected to the body instead the bottle to work properly! ## Update 2018-11-26 added photo or the "real-world" assembly ## BOM: 1x 3ml syringe (concentric needle) 1x polystyrol centrifuge tube 100 x 16mm ("Böttger Zentrifugenröhrchen") 1x needle of your choice, i prefer 1mm needles 1x steel spring OD 11mm, length 60mm, compressed length max 20mm ## Preparations: Cut the syringe housing at the 2.5 ml mark - syringe housing should now be 45mm in length (from the tip to the cut). Cut the syringe plunger to 40mm length. ## Assembly: First assemble the syringe with the needle guide. Then load the spring between the syringe base and endcap - plug in the safety cap to not fire the thing by accident ;) Then plug the syringe shaft into the spring assembly. Now load 1ml fluid to the syringe and finally plug the whole assembly into the tube. - > DONE and ready to "unload" into something.... ## After Assembly: Cut the needle to your preferred length (should definitive be inside the tube on loaded spring). Assembly is designed to hold 1ml of fluid in syringe.
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