Aquaboy Screwcap with opening 96mm

Aquaboy Screwcap with opening 96mm

prusaprinters

Our screw-cap of the Water container (with a submerged pump) broke and needed replacement. I designed this in Fusion 360 and share it here in case anyone needs it as well for their own needs. The Innerdiameter of the cap (excluding the threads) is 96.2mm The inner diameter of the opening is 83.2mm Threads are 3mm proud of the inner cap wall Threads have a 8mm/revolution pitch. I've since creating this found that a commercial replacement costs only 3,50 euro at a nearby campingstore. Nonetheless this was a good first project for me to gain experience in designing usefull objects. Print Settings Printer Brand: Creality Printer: Ender 3 Rafts: No Supports: Yes Resolution: 0.2mm Infill: 30% triangles Notes: line width : 0.4 mm wall line count : 6 (mostly to allow the screwthreads to be printed without needing support) top and bottom layers : 12 (mostly to re-inforce the top lip/edge which will press against the plug) top and bottom pattern : zigzag Supports :Touching buildplate 58degrees (for the gripridges on the edge and the bottom edge curve) Printorientation is as shown in object preview (i.e. with the screwcap top (with the opening) on the buildplate) Post-Printing Very little post processing was needed after removing the supports. Just a few (2-3) touch-ups on the threads where a 5mm strand of filament was not bonded to the print model. How I Designed This This was designed in Fusion 360 using the spring feature to create the threads with the required diameter and pitch, using a square profile. Then the threads were (once incorporated with the actual cap wall) beveled (to allow printing without supports and mimick original design). Took some ideas from this page on screwdesign in Fusion 360 https://forums.autodesk.com/t5/fusion-360-design-validate/bottle-cap-design/td-p/6002993 Category: Replacement Parts

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