ddewees Posted July 4, 2015 Posted July 4, 2015 Here is a diagram of my latest tooling I'm using for endburners... It allows you to add just about any effect to a simple, slow rising, constant burn endburner. http://i1149.photobucket.com/albums/o588/SaltLakeAreaPyros/MODIFIED%20ENDBURNER_zpsvwxnqonc.png The tooling I'm using is a cut off bp tooling set... so don't throw away those bent spindles you may have. The nozzled whistle motors I have tried so far have worked better than I had expected. Actually too good... I'm trying to get a slower rising motor. Due to the simplicity of an endburner, these are quite easy to make with very little tooling required. You could essentially make them with only the one ram shown in the diagram... just flip it over after the spindle to use as a flat drift (assuming you have the required height in your press). I've got some more to try tonight, which i'm hoping I can get to almost hover... or rise at such a slow rate it appears that way. Fun stuff... 1
Rocketier Posted July 4, 2015 Posted July 4, 2015 (edited) Fun DDW Whistle with nozzle. Never tryed that! It's quite fast. How did you fuse the rocket? Quickmatch or just plain visco? The sound holds something inbetween whistle and IBP. Me like! Edited July 4, 2015 by Rocketier
ddewees Posted July 4, 2015 Author Posted July 4, 2015 (edited) I used one strand from marcs perchlorate quickmatch, stuffed all the way up. Here's a bp one with red AP color comp on the bottom. The nozzle keeps the AP and nitrate from coming into contact with each other. These should look nice at night. It also rose much slower, but not slow enough (yet). [Video] Edited July 4, 2015 by ddewees
Rocketier Posted July 4, 2015 Posted July 4, 2015 (edited) I'am jealous on your test ground dude.Looking good. It would be fun to put dandalion/crackling in the red compo. It leaves a nice trail of popping flowers. Edited July 4, 2015 by Rocketier
ddewees Posted July 5, 2015 Author Posted July 5, 2015 Slowest one I could get... I'll have to try some 60/30/10 screen mix next. Planning on using these on a girandola. [Video] 1
asdercks Posted July 5, 2015 Posted July 5, 2015 Genious! seriously this is a great idea DD, those rockets seem like a fun project, shame I don't have a press yet
ddewees Posted July 5, 2015 Author Posted July 5, 2015 They are indeed fun, and very forgiving. They work great with my slowest propellant and my fastest propellant. Fool proof.
VikingPyrotechnics Posted July 18, 2015 Posted July 18, 2015 That´s pretty cool ! On a Dola ? I want to see this !
pyrokid Posted July 18, 2015 Posted July 18, 2015 ddewees, did you incorporate a small taper on the spindle to facilitate motor removal? I made a small nozzleless coreburner tool with 0 taper, and I had a very difficult time removing the motor. It exploded when I lit it, and my thought is that the fuel grain was somehow disturbed by the spindle removal. It will be interesting to study the effects of the exhaust gasses on the composition below the nozzle. Long delay glitter like win20 might be cool!
ddewees Posted July 18, 2015 Author Posted July 18, 2015 I used a black powder spindle, cut to length. So yes, there is a taper. http://i1149.photobucket.com/albums/o588/SaltLakeAreaPyros/20140317_223218_resized_zps7be1e417.jpg
ddewees Posted July 18, 2015 Author Posted July 18, 2015 This isn't one, but makes the same core shape. http://i1149.photobucket.com/albums/o588/SaltLakeAreaPyros/Mobile%20Uploads/20141105_142739_zpsd33e9fdd.jpg
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