Mini-Old School Cool - 38mm MD Rocket with ACME Fin Can

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Alexander
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Re: Mini-Old School Cool - 38mm MD Rocket with ACME Fin Can

Postby Alexander » Tue Dec 08, 2015 8:53 pm

Looks awesome Dan
Alexander Solis

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patelldp
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Re: Mini-Old School Cool - 38mm MD Rocket with ACME Fin Can

Postby patelldp » Wed Feb 24, 2016 1:28 pm

Sticking with the Old School theme, I plan to use old school electronics for this rocket. Recovery will be handled by an AltAcc-2A accelerometer. The main will be deployed at apogee for most flights, but a cable cutter will be used for higher altitude flights.

image.jpeg


More to come! I need to cut a bulkhead for the coupler, drill some holes, and add some epoxy...
Dan Patell
TRA 10904 L3

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patelldp
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Re: Mini-Old School Cool - 38mm MD Rocket with ACME Fin Can

Postby patelldp » Wed Feb 24, 2016 9:28 pm

Had a few minutes tonight to drill some holes to fit the AltAcc-2A to the bay. This altimeter is unique in that it mounts directly to the tube and has an integral power switch and battery mount. A 9V sits on the back and the whole arrangement fits like a glove in a 38mm tube. This is great for this application, but makes locating the unit within the body tube of larger rockets challenging. It also reports its continuity via an LED unless you are lucky enough to have the expansion piezo...which I do not.

Here's the altimeter mounted in the tube. An "old-school" trick is to connect the screw access hole and the LED hole by removing the material in between the two. This allows you better viewing of the LED.

image.jpeg


As you can see, the altimeter is a smooth fit in a 38mm tube.

image.jpeg


I cut the shock cord mount extension off the base of the cone so it wouldn't hit the altimeter...

image.jpeg


All together now!

image.jpeg


All all together now!

image.jpeg


Oink oink...this is without motor, 9V, recovery, or the payload bulkhead...

image.jpeg
Dan Patell
TRA 10904 L3

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patelldp
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Re: Mini-Old School Cool - 38mm MD Rocket with ACME Fin Can

Postby patelldp » Wed Feb 24, 2016 9:31 pm

(Hint...if using an iPhone you need to take the picture in landscape mode...the issue is the camera, not the forum...sigh...)
Dan Patell
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DBMcCann
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Re: Mini-Old School Cool - 38mm MD Rocket with ACME Fin Can

Postby DBMcCann » Thu Feb 25, 2016 12:01 am

If you click on them, the blowup's load properly...

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patelldp
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Re: Mini-Old School Cool - 38mm MD Rocket with ACME Fin Can

Postby patelldp » Thu Feb 25, 2016 6:40 am

DBMcCann wrote:If you click on them, the blowup's load properly...


They also look fine while browsing on my phone...odd. I've researched the issue quite a bit and the issue is that all phones store a portrait-orientation photo as a landscape file. There's no good way to fix it outside of the phone...
Dan Patell
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DBMcCann
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Re: Mini-Old School Cool - 38mm MD Rocket with ACME Fin Can

Postby DBMcCann » Thu Feb 25, 2016 10:42 pm

weird. It's a pain in the ass, but I wonder if there's a way to strip that formatting out in something like preview.

The quick solution is to shoot everything landscape, but thats irritating.


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