As soon as I find a good burst disc, mix of 20 is coming
Hybrids ROCKs
My Hybrid!
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wyz2285
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One short question: my tazer gives a 3cm spark at normal pressure, how high I can go?
As soon as I find a good burst disc, mix of 20 is coming
Hybrids ROCKs
As soon as I find a good burst disc, mix of 20 is coming
Hybrids ROCKs
CpTn_lAw wrote:"yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? "
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jackssmirkingrevenge
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30x should be within your grasp assuming you have a tiny enough spark gap 
Also, good to see you illustrate the syringe fuelling on your video.
Also, good to see you illustrate the syringe fuelling on your video.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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wyz2285
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oops, forgot to mention, my ignition plug is 1mm.
Yap syringe fueling is the most reliable and simple way to do it, yet accurate
Yap syringe fueling is the most reliable and simple way to do it, yet accurate
CpTn_lAw wrote:
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wyz2285
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You too Petitlu !
CpTn_lAw wrote:
Might be worth looking into some of pressure ratings before going too high in the mixes.
There are larger volumes at play here and/or less material than most of the high mix hybrids that have been done so far.
And it's probably a good exercise anyway.
Haha, and for the higher mixes, might be worth clamping down the canon in some way
Nice work.
There are larger volumes at play here and/or less material than most of the high mix hybrids that have been done so far.
And it's probably a good exercise anyway.
Haha, and for the higher mixes, might be worth clamping down the canon in some way
Nice work.
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Gun Freak
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OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
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jackssmirkingrevenge
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Seconded, maybe on a wheeled tableal-xg wrote:Haha, and for the higher mixes, might be worth clamping down the canon in some way
hectmarr wrote:You have to make many weapons, because this field is long and short life
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wyz2285
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Did more tests today, but had a lot of problems with burst disc
[youtube][/youtube]
I was hoping to go 10x, but nothing holds that pressure. Also, 1mm spark at 10bar can´t be heard, so I ´m not sure if the spark is working, but it should.
Ended up using 7x, the first try was a success, but when I attached the barrel, the burst disc didn´t break
I was using aluminium foil, the first few layers broke, the rest were almost.
[youtube][/youtube]
I was hoping to go 10x, but nothing holds that pressure. Also, 1mm spark at 10bar can´t be heard, so I ´m not sure if the spark is working, but it should.
Ended up using 7x, the first try was a success, but when I attached the barrel, the burst disc didn´t break
I was using aluminium foil, the first few layers broke, the rest were almost.CpTn_lAw wrote:
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wyz2285
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You mean soda cans? lateral or the base?
CpTn_lAw wrote:
As to appropriate burst disk material, wyz: aluminum foil will work just fine. The number of layers required can be assumed to scale linearly with the desired rupture pressure. I don't see what you're using as a holder for the burst disk. If it's a 1/2" union, rupture pressure should be 10-20psi / layer for standard thickness aluminum foil. Try a 32 layer disk for 10X, for starters.
The required spark gap length scales approximately inversely with the chamber pressure (for low pressure, at least). If your rig could tolerate a 10mm gap at atmospheric pressure with no arcing across in places it wasn't supposed to, there shouldn't be any problem with a 1mm gap at 10X. I never had the luxury of such long gap. When I used HV ignition (which wasn't all that often in my later hybrids due to issues with high voltage and long wires laying on the ground), the gap was usually less than 0.3mm for a 10X mix (with a capacitor discharge driven ignition coil providing the HV pulse).
The required spark gap length scales approximately inversely with the chamber pressure (for low pressure, at least). If your rig could tolerate a 10mm gap at atmospheric pressure with no arcing across in places it wasn't supposed to, there shouldn't be any problem with a 1mm gap at 10X. I never had the luxury of such long gap. When I used HV ignition (which wasn't all that often in my later hybrids due to issues with high voltage and long wires laying on the ground), the gap was usually less than 0.3mm for a 10X mix (with a capacitor discharge driven ignition coil providing the HV pulse).
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