Valve indexing caps for car tyres, v.3

prusaprinters

<h5><i>Updated version, to v3:&nbsp;</i></h5><ul><li><i>added caps thread, which is the same as automotive tyre valv: .305-32 TPI (dia 7,747 x 0,7938 mm pitch).</i></li><li><i>better sealing against the valve body.</i></li></ul><p>Now is time again to change wheel with summer to winter tyres.</p><p>&nbsp;I had a set of Tyre Valve Caps for wheel placement, prior to wheel/tyre change (winter - summer) but signs were printed and not enough visible. The original does fit loose on tyre's valves and came off very easy.<br>I have googled around to see if there is something better. I did not find anything good enough and I decided to design my own caps, which are much better visible (the symbols have a texture and are 3D printed in two different colours). The colour change is generated in the gcode. I suggest to print all of them together with brim. Together, to skip 8 times change filament colour instead of two times.&nbsp;</p><p>No need for support material. If you can't perform colour change, you can paint arrow and its square with nail lacquer.</p><p>The caps are now with appropriate thread (Schrader valve size). The caps do fit nicely on the tyre's valve and do not come loose. It is easy to screw and unscrew them. Now we have sealing between the cap and the valve body. The sealing is tested and does not allow water to come in. I am sure you won't be disappointed.&nbsp;</p>