Favorite terminal blocks?
- Thread starter GrouchoDuke
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How about for airfstarts, where the motor tends to cook everything? What block do you like there?
Just like the TermBlocks on your EBAY - cover them with some duct tape.
Protects against corrosion, burned wires, shorts....
Simple, cheap and effective.
Just like the TermBlocks on your EBAY - cover them with some duct tape.
Protects against corrosion, burned wires, shorts....
Simple, cheap and effective.
Viperfixr
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My favorite terminal blocks are the av-bays that don't need them, wiring the e-match directly to the altimeter, draped into a plastic Doghouse rocketry ejection charge canister. Nothing like a direct connection for peace of mind when the continuity beeps out. Very easy to do with smaller (4" and under?) builds. You can easily plug the hole in the av-bay lid with play-doh or hot glue.
Not my original idea, just copied those ahead of me who knew better, like Tom Binford or CJ.
Not my original idea, just copied those ahead of me who knew better, like Tom Binford or CJ.
For those that say you don't use terminal blocks, are you soldering the e-match to the altimeter each time??? Or are you using a terminal block on the altimeter?
I can almost see soldering a length of wire to the altimeter, then using twist & tape, but that is still a failure point. Eventually one would have to solder a new wire to the board.
Just seems to me that repeated soldering on the circuit board would lead to failure of the board....
I can almost see soldering a length of wire to the altimeter, then using twist & tape, but that is still a failure point. Eventually one would have to solder a new wire to the board.
Just seems to me that repeated soldering on the circuit board would lead to failure of the board....
cbrarick
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I mount a couple of #6 screws thru the ebay. I put ring terminals on the battery and altimeter sides. The battery one is on the bottom, then a nut and then the altimeter and a wing nut. When I want to charge, the altimeter goes off and charging wires with similar ring terminals, do the deed without a load and then put the altimeters back on when I'm getting ready to fly. Keeps you extra safe while wiring ematches because there's no physical connection to power.
FMarvinS
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In leu of a terminal block, I use the block connectors offered by Adept Rocketry. The leads are connected to the altimeter and the 2 block connectors (1 from each altimeter) pass through a single hole drilled in the bulkhead. Like others, a weld nut is used to cover this hole and provide strain relief. The ematches easily attach to the block connectors,external to the bulkhead, and then a layer of masking tape covers the connections and prevents erosion. This works very well and simplifies the opening of the av-bay without the need to disconnect and reconnect ring terminals or the potential loosening of nuts that may in turn result in a BP charge not firing. I havent done it yet, but this approach should work well for air starts also.
Fred, L2
KG4YGP
member of ICBM, S.C.
FMarvinS
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Correction: Tommy at Adept rocketry refers to these connectors as box connectors (not block). For further info see: https://www.adeptrocketry.com/CAB2cart.htm
Fred
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