this is a combustion cannon using propane but boosted up to a higher pressure before ignition using compressed air
cheers wayne

thanks for your comments guys,yep after welding and before polishing i'll anneal the cannon using just acetylene to give a black soot all over and then add the oxygen and heat all over gently until the sooty deposits disappear,now at T0,then heat treat to T4 followed by T6 the following day to ...

cannon will end up being fully welded and mirror polished for looks and strength,we've been engineering with this type of material for over 40 years between us and have always over engineered projects,so once it's built there is no downtime fixing and bodging things,i've seen the damage this type of ...

yep 6063 T-6 aluminium,thought about a traditional spark plug from a vehicle but wouldn't that mean having a coil to produce a high tension spark then a motor to drive a magneto of some description,maybe someone could put me in touch with a supplier of stun guns over there(i presume this is an ...

hi radiation,yep were machining all parts ourselves,using T6 aluminium as we believe that it has a far higher pressure rating than P.V.C (330 psi)were still at the design stage at the mo so any input would be spot on,were going along the lines of twin 4" combustion chambers 12" long with a single 2 ...

hi all, noobies here,a few colleagues and i are in the middle of designing an aluminium spud launcher,the question we pose is How to attatch the BBQ igniter electrodes the the ali chamber without stray arc to the body,all sensible help fully appreciated
regards the SPUD-U-LIKE boys