Improved Tumbler Lid With gasket, Easy Open
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Added grooved edges and an easy-opening crank in the middle. Also added a gasket out of TPU or PEBA
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Added grooved edges and an easy-opening crank in the middle. Also added a gasket out of TPU or PEBA.
I also sealed the drum and the inside of the lid (the area inside of the gasket) with epoxy. Hopefully it doesn't leak.
EDIT:
v2 is now available. The first version of the gasket was not enough to prevent leakage. I increased the gasket size and expanded it to go under the threads, increasing the contact area with the rim of the tumbler. I also put a small groove/lip to better retain the gasket. I further thickened the gasket to sit .75mm above the floor of the lid. I think the v1 did not go high enough to make contact with the rim.
For the lid and crank, I increased the size of the cogs for better grip and smoothed the edges so they don't hurt. I can now get excellent grip and torque to open and close the lid. I increased the size of the teeth on the crank and lid interface so it doesn't slip out anymore. I can insert the crank into the interface with the lid, and it holds in place without any glue. Overall, I'd say the cogs are right where I want them. They also clear the wheels just fine on the tumbler base.
I still have to test for leakage with the new gasket. That will likely happen tomorrow as I have to re-epoxy the floor of the new lid. I will update once that is complete.
STEP files included.