Reptile S800 Sky Shadow Motor Mount - 12 mm

Summary

This motor mount is designed for the Reptile S800 Sky Shadow wing.  It could also fit other models.  This design is targeted for minimum weight and maximum strength.

Move the motor back 12 mm into cleaner air so it runs quieter.  May accommodate a larger propeller.  The optional mount sold by Banggood is 11 mm tall.

One model has chamfered holes for countersink head bolts that mount to the motor.  The other model has flat holes.

Print Settings

Resolution: 0.2 mm Infill: 30% Filament Brand: Solutech Filament Material: PETG for strength and layer adhesion

In your slicer turn down the minimum extrusion width to 50% if you're using a typical 0.4 mm nozzle.  There is a 0.3 mm gap between perimeters at the post surface that may not be filled in otherwise.  I didn't want to make the posts larger just to eliminate the gap.

Post-Printing

Use 16 mm M3 bolts to secure the mount to the carbon fiber/wood plate sandwich.  Ream the holes with a 3 mm drill bit if necessary.

I epoxied nuts into the wood plate flush with its surface, being careful to keep epoxy off the threads.  Add a little more epoxy around the nuts with a toothpick to make them very secure.  When it's cured, glue or screw on the carbon fiber plate.

You might rough up the nuts and plates with sandpaper before glueing.  Don't breath any nasty carbon dust and wash your hands after sanding.