RV Trailer Window Crank Steampunk

pinshape

This is a collection of cranks for an RV/Trailer window mechanism featuring a 5/16 or 8mm spline shaft. The variations in design relate to the length of the stem at the back, as some are embedded in windows slightly more than others. Two versions don't require the knob. I printed mine in ABS and then coated with copper and aluminum powder mixed with acetone. I'm sure they will work well whether painted or left plain. The knob requires a 3/32 x 3/8 or 3mm x 10mm bolt. There is a spot for the nut as well, but I discovered that the bolts thread in nicely without one. For optimal results, print at resolutions of .3 mm or under to prevent the splines from becoming fuzzy.