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Rocket tool sketcher

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#21 DavidF



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Posted 08 September 2016 - 10:35 PM

NeighborJ, you are reading it right, but it isn't right. The Acme has a 100kg load cell in it. The accuracy at very low weights is not so good. I found this out early on- not a complaint- and just weighed my motors before and after firing after that.


I'll honestly say though, I wasn't looking to have the hottest black powder- necessarily, per unit of weight. My goal was to see what power I could get from the rocket motors, made as we (or I) would usually make them. I customarily press my rockets to 9000psi, which is more than most folks do.  However many scoops it takes, it takes. I don't didn't weigh the motors. I will say, the different propellants weren't so different in texture and density. In the end I achieved my goal satisfactorily enough to call it a job 'done' and move on to other tests.


It's a continuous learning process for me. The Acme is a guide, for sure. These runs were early in my rocket experiments. I would never make my rockets this way for general use. To try to find out the reason(s) for CATO, I am trying to find out the reasons for no CATO. This could take a while ;)


EDIT: here's the most powerful BP motor I've tested so far- NEPT tube (old):



Edited by DavidF, 08 September 2016 - 11:00 PM.

#22 pudidotdk



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Posted 01 November 2016 - 07:31 AM

New link to online Rocket Tool Sketcher:



Downloadable .exe (8 MB):




Sorry for the temporary downtime.

I know this complicates things since the old link is still floating around, but I couldn't justify the cost of maintaining the old website just for the URL.

Besides, you will save 6 button pushes when typing in the new URL (yay).


- Nic

#23 dagabu



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Posted 02 November 2016 - 08:25 PM

AWESOME!  Thanks Nic!

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#24 SKC


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Posted 16 May 2018 - 11:37 AM

Thanks a lot pudidotdk.

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