# Math... need... Help! **URL:** \ **Category:** NYSpeed Off Topic\ **Created:** [October 21, 2009, 5:27pm UTC](https://forums.speedlife.net/t/math-need-help/75190 "2009-10-21T17:27:13Z")\ **Posts on this page:** 8\ **Page:** 2
**Author:** ![travisn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/travisn/32/5046_2.png) [@travisn](https://forums.speedlife.net/u/travisn)\ **Post date:** [October 23, 2009, 11:46am UTC](https://forums.speedlife.net/t/math-need-help/75190/21 "2009-10-23T11:46:14Z")
isnt it 7.481 gallons in one cubic foot at 1 ATM? doesnt pressure change that ratio? ---
**Author:** ![Hass](https://avatars.discourse-cdn.com/v4/letter/h/51bf81/32.png) [@Hass](https://forums.speedlife.net/u/Hass)\ **Post date:** [October 23, 2009, 6:19pm UTC](https://forums.speedlife.net/t/math-need-help/75190/22 "2009-10-23T18:19:46Z")
> [@Southtowns27](#): > > I didn’t see anyone catch it, but: > THERE ARE 7.481 GALLONS IN ONE CUBIC FOOT > Not, 7 cu/ft in a gallon. That should help you out Sooo, my original math is correct? I’m really fucking confused now. lol. > [@travisn](#): > > isnt it 7.481 gallons in one cubic foot at 1 ATM? > > doesnt pressure change that ratio? Ugh. Basically, I’m looking for 2-3 minutes of run time. More would always be nice. But I would prefer that, without the compressor running. Considering, 220V @ 22 amps single phase… Roughly 5k watts. I have 11k watts total, which would generally be entirely used by gouging… So an extra 5k watts of juice… has no where to come from 😛 Think I’m going to do some gambling… > **[Harbor Freight Tools – Quality Tools at Discount Prices Since 1977](https://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=90836)** > > Harbor Freight buys their top quality tools from the same factories that supply our competitors. We cut out the middleman and pass the savings to you! Think I’m going to get it… I’d prefer to get the IR or equiv, but they’re all are $2.1k Sooo save myself 700 bucks… and… who knows… :X ---
**Author:** ![travisn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/travisn/32/5046_2.png) [@travisn](https://forums.speedlife.net/u/travisn)\ **Post date:** [October 24, 2009, 10:40am UTC](https://forums.speedlife.net/t/math-need-help/75190/23 "2009-10-24T10:40:22Z")
if you have room/$$$ buy a broken compressor and have the working compressor fill up the broken one, twice the air for a lot less money. ---
**Author:** ![LowlyOilBurner](https://avatars.discourse-cdn.com/v4/letter/l/a6a055/32.png) [@LowlyOilBurner](https://forums.speedlife.net/u/LowlyOilBurner)\ **Post date:** [October 24, 2009, 5:18pm UTC](https://forums.speedlife.net/t/math-need-help/75190/24 "2009-10-24T17:18:48Z")
Air carbon arc gouging fucking sucks and is gay. Buy a plasma, and get the gouging tips/nozzles, enjoy life. Seriously, I sold welding supplies for a while, and i use to have to blow the dust off the boxes of shitbag “Arcair” carbons whenever someone wanted a box. I think I sold like two boxes of 3/16 carbons to some clown at Hohl industrial, and I gave them to him for half off too. Most people are using plasma arc gouging to fix their “fuck up’s”. ---
**Author:** ![Hass](https://avatars.discourse-cdn.com/v4/letter/h/51bf81/32.png) [@Hass](https://forums.speedlife.net/u/Hass)\ **Post date:** [October 24, 2009, 5:48pm UTC](https://forums.speedlife.net/t/math-need-help/75190/25 "2009-10-24T17:48:07Z")
> [@LowlyOilBurner](#): > > Most people are using **air** arc gouging to fix their “fuck up’s”. Ta-da. ^^ removing weld is pretty fail with plasma. Plus Plasmas require a compressor anyway. Not as much requirements, about half as much… But still require one. So not like it would be going to waste. ---
**Author:** ![LowlyOilBurner](https://avatars.discourse-cdn.com/v4/letter/l/a6a055/32.png) [@LowlyOilBurner](https://forums.speedlife.net/u/LowlyOilBurner)\ **Post date:** [October 24, 2009, 7:32pm UTC](https://forums.speedlife.net/t/math-need-help/75190/26 "2009-10-24T19:32:24Z")
I’ve seen plasma used for removing weld deposits with great success. I’ve seen demos of it from reps from thermal dynamics and esab. It works. ---
**Author:** ![Hass](https://avatars.discourse-cdn.com/v4/letter/h/51bf81/32.png) [@Hass](https://forums.speedlife.net/u/Hass)\ **Post date:** [October 24, 2009, 8:30pm UTC](https://forums.speedlife.net/t/math-need-help/75190/27 "2009-10-24T20:30:26Z")
Really? anytime I’ve ever tried it I’ve fucked the metal up pretty good. Youtube time i’d say. ---
**Author:** ![LowlyOilBurner](https://avatars.discourse-cdn.com/v4/letter/l/a6a055/32.png) [@LowlyOilBurner](https://forums.speedlife.net/u/LowlyOilBurner)\ **Post date:** [October 25, 2009, 6:45am UTC](https://forums.speedlife.net/t/math-need-help/75190/28 "2009-10-25T06:45:31Z")
Yep. It’s all in the tips and nozzles, works like gang busters. [Previous page](https://forums.speedlife.net/t/math-need-help/75190.md?page=1)