Couple pyro pics

[Sparx88]

First time trying out grass seed for burst. Got a real good deal on it, free. Look ok? Done in a star roller with fresh milled meal no binder.

 

 

And here's some "mini visco spollette time fuse doohicky's". I use now for these 2" shells. Works perfect, dipped in flash slurry. 1.185" fuse length gives me 4 seconds to flash slurry ignition. The fuse is sealed off with a small peice of shrink tubing (shrunk with the heat from a hot glue gun tip) inside the paper tube at the top flush. with 1/8" of fuse protrudin and glued around the rim with tight bond to prevent any sparks from reaching the flash slurry prematurely keeping the fire at the center of the shell. The tubes are out of manilla paper soaked in a 50/50 mix of wheat flour and dextrin paste wrapped around a 3/16 drill bit. I don't use a wood dowelI because I know it will stick and not come off. An aluminum rod or brass even is in the plans once I get back to lowes. I 'll make a video soon on how I make them and in action. Gotta love this hobby, so many ways to do something different.

Edited March 6, 2014 by Sparx88

[Wiley]

Sparx88, those are some neat little tubes!. But if you're already heat shrinking tubing around the fuse, why not just use that to create your delay and save a little bit of work?

[BrainDamage]

looks good and you can't beat free

[Sparx88]

The fuse will burn through the shrink tubing by itself. The shrink tubing is more of a gasket seal (as well as fixation) between that and the inside of the paper tube. You want it to be snug. I use 2 peices, apply the first peice and shrink, then shrink the second peice over it leaving 1/8" fuse exposed. Put a bead of glue around making sure there is glue covering good. Glue them inside and out of the shell for maximum seal and strength ofcourse. You'll see that in the pics below. I pretty sure you guys will make sense of the pics, they are in order steps 1-8.

 

Edited March 6, 2014 by Sparx88

[Wiley]

It's a cool idea, and if you're getting precise timing with it, more power to ya. But for what it's worth, I just wrap up a thick layer of masking tape or aluminum tape around my visco to create a delay.

[dave321]

what glue are you using ?

 

pva or polyurethane or urea/ formaldehyde

[Sparx88]

what glue are you using ?

 

pva or polyurethane or urea/ formaldehyde

Tight Bond -original- wood glue, I get it at Lowes or home depot. It works great for all things paper which is what like 90% pyro lol. Diluted Tight Bond 3 I use as well where I need more elasticity like in hand rolled cake tubes. A 150 degree oven for a couple hours and the tubes are rock hard but stretch and split when over powered instead of bursting into a bunch of peices. usually It was fun testing anyway, at a distance. I hope I'm not boring you with useless info, but yah, anyway, thats the glue used in the pics.

 

It's a cool idea, and if you're getting precise timing with it, more power to ya. But for what it's worth, I just wrap up a thick layer of masking tape or aluminum tape around my visco to create a delay.

I know. Theres a few ways to do it, I just like fabricating stuff and making it work. I can't help it, it's in my blood to find a way to personalize everything. I think this way looks as good as it works. Call it pride I suppose lol

[MWJ]

Great info Sparx88, you not boring anyone. I use tight bond III to make custom cabinets, works great!

[ollie1016]

It's a cool idea, and if you're getting precise timing with it, more power to ya. But for what it's worth, I just wrap up a thick layer of masking tape or aluminum tape around my visco to create a delay.

I agree too ^^^^