===== Inner Frame =====

Author: Friedrich Beckmann

The following image shows the inner frame with beams, without PVC tubes, pixracerplate and gpsplate.

{{::sw-frame-with-beams.jpg?600|SearchWing inner frame with beams - without tubes}}

The inner frame is 3D printed. 

=== Design Data and Print ===

The design data is in the [[https://cad.onshape.com/documents/e5108aca5bca4e26e924a834/w/bc42e714fb23ef5766a15987/e/924c6b9a139d222bce38e508|Onshape Searchwing-Frame Document]]. The frame is composed of

  * Sidewall-left
  * Sidewall-right
  * Innerwall
  * pixracerplate
  * gpsplate

The 3D Print for the walls is done with Ultimaker 3 with "Normal" default print settings plus 2mm wall width. The plates are printed with "Normal" Settings with the Ultimaker 2+. Both use default PLA material. After the print:

  * Remove the support brim by hand
  * Remove the remaining support brim parts from the walls by filing. The innerwall has to fit into the sidewalls.
  * The sidewalls have a 10mm hole and a 4mm hole for the fuselage spar beams. After print the beams do not fit.
  * Drill a 10mm and a 4mm hole with the stand drill machine to make the fit. DO NOT USE A HAND DRILL!
  * Check that the fuselage beams can be inserted in the sidewall holes.

{{::sw-frame-drill.jpg?600|SearchWing inner frame 4mm hole drill}}