44-45 Missile Launcher Motor Spacer 

Fixing the broken part.

Fixing the Motor spacer on a 44 missile launcher.

I bought a 44 Missile launcher.   The main problem was it had a broken spacer that centers the motor.   I couldn't find what to call it and did not find a part readily.  Even on the new model, this part is not listed seperately.  I DO have a 3 D printer.  So away I went.

Here is what the broken part looked like on the motor.

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This is what a good one looks like  It has a notch on the bottom for alignment and an angled riser one on top to keep the rivet head from snagging.

  Using Solid Edge and a few repetitions I came up with a good, functional model.   Top side,  against the frame base. The rivet or screw head must be flush or lower than the top to prevent the rivet or screw from snagging.

The second side, the bottom side against the motor base.  The flat side

Printing it out I ended up with this.  bottom side compared to an original. 

These close up and black shinny PETG makes it look rough, but it is usable and smooth.  See the other pictures below.


 

Installing on the motor with a 2mm/.086" diameter countersink screw.  I didn't have the tools to re-rivet and the screw was overall easier.  Too much pressure with a rivet and the space is ruined.

An original vs. new.
 

It works well, keeps the engine centered and does not let the bolt head catch on the side of the frame.  

Was it worth it?  As a hobby yes.  Time/money, no.  Unless someone wants to buy 500-1000 of them for 50 cents each.  Then I could break even.

These project .stl and step files I created are available on the OGR 3D printing Catalog

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Last Update  Jan 30 2023