Nose retract brace for Freewing Mig-29 by mshagg

Last crawled date: 3 years, 5 months ago

This is an upper and lower brace to better secure the front retract and its housing on the Freewing Mig 29.
Bill of materials:
Top plate (from this thing
Retract plate (from this thing)
4-40 allthread (12in should be sufficient)
4-40 locknuts (x8)
The parts should be printed at relatively high infill for maximum strength.
Basic installation instructions (you'll figure it out!):
Remove middle battery tray with 4 screws. Those screws are no longer needed.
Remove second piece of plywood from battery area, which is secured to the retract housing with two screws. It's glued to the foam so might need some gentle prying.
Press 4 locknuts into the provisions made in the retract plate
Test fit and measure the length of 4-40 allthread you need, cut 4 identical sections. Make them a little longer than you think you need.
you will likely need to enlarge the holes in the retract mount. Then just press the rod through the foam unil it pops out the top. Make sure it goes in straight!

Thread rod into the locknuts which are pressed into the retract plate
Place retract plate onto retract and insert the assembly.
Trim threaded rod as needed - remember you will have a battery sitting on top of this, so make sure nothing protudes above the top plate!
Remove battery strap from original tray and fit it to the top plate.
Place top tray into position, making sure the threaded rods align with the holes in the plate. Replace two screws from the original lower plywood tray
Secure locknuts into position on the threaded rod, and tighten the top plate down evenly.
Grind down any excess threaded rod protuding from the upper locknuts - it's ok to have excess on the lower locknuts, so long as they dont interfere with the steering tiller.