DIY strain gauge with the resistors?If you're OK with fiddling around with Arduino you can get a 100N force-sensitive resistor pad for under $10, along with an Arduino starter kit at around $50-60. Not the most accurate but it works.
So just hold-down clamp of sorts?I dont want data acquisition just a safe and stable test stand.
Is that safe?The absolute cheapest method? Bucket of dirt.
Dampen it so it gets slightly soft, stick the motor in .5", you're done.
Yes that is what i am looking to do.I take it that 'fires properly' is the only data you're looking for? No max thrust, or average, or burn time?
I think the other question that will help people answer sensibly is 'about what thrust'? If it was an 18mm, I'd probably use a ring stand and a clamp. A K1000 calls for something else.
Edit - wait, you said LPR. Never mind.
I've only seen it done to E9s to test if the pack is CATO prone, but I'm fairly certain that any Estes black powder motor would be fine in it. Mud/clay has some surprising stickiness. If an E9 won't go anywhere, I can't imagine a C6 being a problem.Is that safe?
No. If you're not collecting data then you're just looking to burn stuff. Just say no.Is that safe?
Ah, but data has been collected!No. If you're not collecting data then you're just looking to burn stuff. Just say no.
Ok thanks i won't try it.Dirt is denser than snow, has a much higher melting point, packs together tighter, and has higher friction, and won't potentially soak or extinguish the test subject prior to firing.. I know we have a lot of it (snow) right now, but I'd stick with dirt..
He's Canadian, so that would be 1.27 cm.The absolute cheapest method? Bucket of dirt.
Dampen it so it gets slightly soft, stick the motor in .5", you're done.