Spudblaster blaster gave me the C:B ratio and a few types but I did like 90% of it by myself, it has a 6 foot barrel and 16" chamber with over/under config. 80mm CPU fan on 18 volts, double spark gaps with metered mapp gas.
Metered Mapp gas Potato gun
Well, this is my 3rd potato gun, im only 13 by the way
Spudblaster blaster gave me the C:B ratio and a few types but I did like 90% of it by myself, it has a 6 foot barrel and 16" chamber with over/under config. 80mm CPU fan on 18 volts, double spark gaps with metered mapp gas.
Spudblaster blaster gave me the C:B ratio and a few types but I did like 90% of it by myself, it has a 6 foot barrel and 16" chamber with over/under config. 80mm CPU fan on 18 volts, double spark gaps with metered mapp gas.
what do you use for an ignition source? im not familiar with abs, but maybe thats just painted........many of those parts are not pressure rated
in the upcoming presidential election, there will be several candidates who will be running, one of whom is Hillary Clinton. Now WAIT A SECOND!!! I though there was some sort of rule that prevented someone from serving more than two terms in office. Vote Against Hillary: Presidential Elections 08
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PVC Arsenal 17
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^ ^ It's a combustion, no big deal.
You did a good job by the way. Not bad at all.
Is that ABS, because I've never seen yellow primer for PVC before...
You did a good job by the way. Not bad at all.
Is that ABS, because I've never seen yellow primer for PVC before...
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SpudBlaster15
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Last edited by SpudBlaster15 on Wed Jul 14, 2021 12:36 pm, edited 1 time in total.
Thanks, and yes its ABS/PVC Arsenal 17 wrote:^ ^ It's a combustion, no big deal.
You did a good job by the way. Not bad at all.
Is that ABS, because I've never seen yellow primer for PVC before...
and beebs i use a eletric grill ignitor, switching to the red button piezo elecrtic device soon though.
Thanks for the comments.
i know that it is a combustion, thats why asked what he used for ignition duh! and i like to only use pressure rated pvc parts with my guns, just for safteys sake, even when it is only a combustion, very nice job
in the upcoming presidential election, there will be several candidates who will be running, one of whom is Hillary Clinton. Now WAIT A SECOND!!! I though there was some sort of rule that prevented someone from serving more than two terms in office. Vote Against Hillary: Presidential Elections 08
The ABS im using is sch 40, but thanks for the commentbeebs111 wrote:i know that it is a combustion, thats why asked what he used for ignition duh! and i like to only use pressure rated pvc parts with my guns, just for safteys sake, even when it is only a combustion, very nice job
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PVC Arsenal 17
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Yes, but your parts are DWV (drain waste vent) and are unrated. Sch 40 is only a measure of wall thickness I believe. You can tell if a pipe or fitting is pressure rated if it is marked with NSF-pw.
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SpudBlaster15
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Last edited by SpudBlaster15 on Wed Jul 14, 2021 12:36 pm, edited 1 time in total.
I can name many advantages with ABS over PVC, and I think that the SCH means the psi, 40 SCH is 200 psi and 80 SCH is 400 psiPVC Arsenal 17 wrote:Yes, but your parts are DWV (drain waste vent) and are unrated. Sch 40 is only a measure of wall thickness I believe. You can tell if a pipe or fitting is pressure rated if it is marked with NSF-pw.
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mark.f
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Nice gun! Good to see another fan of MAPP gas as well.
BTW, do you have the same problem I got with MAPP gas? After firing, the cleanout cap locks up so tight you gotta get a jar opener to get it off? This happens to me every time I fire.
BTW, do you have the same problem I got with MAPP gas? After firing, the cleanout cap locks up so tight you gotta get a jar opener to get it off? This happens to me every time I fire.
SCH means the thickness... but a bigger SCH will have a higher psi rating... but it depends on the pipe...
Nice gun!!... i like mapp
Guys can we leave the abs vs pvc thing alone... he didnt post his gun here to listen 2 evreyone fight over it agian
Nice gun!!... i like mapp
Guys can we leave the abs vs pvc thing alone... he didnt post his gun here to listen 2 evreyone fight over it agian
To clear things up the 'sch' [schedule] only indicates the wall thickness, it in no regards defines the strength of such. More likely then not you have sch 40 cellular core ABS, which does not carry a pressure rating, and more so it is not intended for pressure. Although it is commonly accepted for use in launchers. Many people, including myself can safely say that they've put 1G rounds threw such guns without failure.
One first has to determine with whatever material it may [PVC, ABS] be if it in fact solid core, cellular core, or some other variant.
"I can name many advantages with ABS over PVC, and I think that the SCH means the psi, 40 SCH is 200 psi and 80 SCH is 400 psi" ~fom
It should be understood by other users that those numbers are 100% wacked. First the first stipulation of this all is you must first determine which material such is, and its cross section [cell core, solid]. Even from there the diameter of the pipe effects the pressure rating. So you cant emit pressure ratings without first regarding changes in diameter of it differences in cross section terms.
"Guys can we leave the abs vs pvc thing alone... he didnt post his gun here to listen 2 evreyone fight over it agian" ~Scope
First I wouldn't consider any such discussions 'fights', rather a convincing of the bull headed. Such discussions take place so that users involved in the conversation, and other forum drifters don't pick up false info because someone is spewing incorrect facts out of there ass. The discussions are simply not at yours, or the posters will to avoid as it is done for safety of forum members. Remember this forum doesn't revolve around you
Anyway to the gun itself, nothing overly complicated, while nice. Possibly could have been a bit more careful what appears to be yellow ABS glue? You also may have wanted to mount the batteries and such inside enclosure of some sort, as well decided on one type of metal for the metering system. You used all 3 hardware available metals brass, black, and galvanized. Also to turn the gauge in ~1/2 turn as currently the pressure gauge is pointing in the opposite direction of the user. Understand I'm being overly critical for your sake, as this launcher appears to be very fun. Simplest tend to be the 'funnest'.
One first has to determine with whatever material it may [PVC, ABS] be if it in fact solid core, cellular core, or some other variant.
"I can name many advantages with ABS over PVC, and I think that the SCH means the psi, 40 SCH is 200 psi and 80 SCH is 400 psi" ~fom
It should be understood by other users that those numbers are 100% wacked. First the first stipulation of this all is you must first determine which material such is, and its cross section [cell core, solid]. Even from there the diameter of the pipe effects the pressure rating. So you cant emit pressure ratings without first regarding changes in diameter of it differences in cross section terms.
"Guys can we leave the abs vs pvc thing alone... he didnt post his gun here to listen 2 evreyone fight over it agian" ~Scope
First I wouldn't consider any such discussions 'fights', rather a convincing of the bull headed. Such discussions take place so that users involved in the conversation, and other forum drifters don't pick up false info because someone is spewing incorrect facts out of there ass. The discussions are simply not at yours, or the posters will to avoid as it is done for safety of forum members. Remember this forum doesn't revolve around you
Anyway to the gun itself, nothing overly complicated, while nice. Possibly could have been a bit more careful what appears to be yellow ABS glue? You also may have wanted to mount the batteries and such inside enclosure of some sort, as well decided on one type of metal for the metering system. You used all 3 hardware available metals brass, black, and galvanized. Also to turn the gauge in ~1/2 turn as currently the pressure gauge is pointing in the opposite direction of the user. Understand I'm being overly critical for your sake, as this launcher appears to be very fun. Simplest tend to be the 'funnest'.
I hear ya Pimp... I just feel bad for people who post cannons only to have a the thread get pulled away from there cannons...