AV BAY ON LOC T-LOC

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hball55

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I am fiddling around with the altimeter mount on my LOC T-LOC and it looks like the mount is designed to be permanently epoxied inbetween the fins.

Has anybody an alternative to this setup?

I am considering cutting two holes in the mounting board and a hole in the fin tang of each fin, then using a long zip tie running through each hole, to hold the mounting board in place. Since the mounting board does rest against the fin on either side and on the motor tube (there’s two curved pieces epoxied onto the back of the altimeter mounting board for this purpose), I am thinking a zip tie just might do the job.

My reason for wanting to have a removable mount, is that If I ever removed the altimeter to use in another rocket, it would create problems if I were to try remounting the altimeter in the rocket ( if epoxied in place, the mounting nuts on the back would be inaccessible).
 

jd2cylman

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How about T nuts in the back side of the board, so if you want to remove the Alt, it just unscrews?
 

hball55

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How about T nuts in the back side of the board, so if you want to remove the Alt, it just unscrews?
I’m slow sometimes, of course the altimeter is secured to the board using the t-nuts. The board itself has to be permanently secured between the fins. There is a hatch through the body tube to access everything once the rocket is assembled and that hatch isn’t large enough to remove the board, but IS large enough to remove the altimeter, or change out the battery. Doh!

Thanks Adrian, a simple and elegant solution that I failed to see. I’ve always been hesitant to place an altimeter between the fins because I am too clumsy to cut and fabricate a hatch through the body tube. LOC has done that for me with the T-LOC.
 
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jd2cylman

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And if you get the wrong (right?) T nuts that are thicker than the plywood, they’d act as standoffs also… I’d guess 1/8” taller would be sufficient.
 

hball55

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And if you get the wrong (right?) T nuts that are thicker than the plywood, they’d act as standoffs also… I’d guess 1/8” taller would be sufficient.
Yes, great advice! I ordered small blind nuts (4-40) and also 4-40 nylon machine screws and nuts. I figured a couple of nylon nuts on the backside of the altimeter would act as both standoffs and insulators between the metal blind nut and the altimeter.
 
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