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FrankenBlaster

Discussion in 'The Hokey Ass Message Board' started by 53choptop, Jun 6, 2008.

  1. 53choptop
    Joined:
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    Austin, Texas

    53choptop Member

    I had been wanting a sandblaster for a while, (I need it to cut my windshield), but nothing really impressed me, the high dollar units were just that, high dollar, so I thought why not make one.

    After extensive research I found and bought plans off the internet, PABlaster.com. I call it "Frankenblaster", made it from an old 80 gal water heater (had to cut it about 10 inches shorter, too big) , a concoction of fittings, a dolly and other various parts.

    Tried it out with regular masonry sand just to get the pressures right, man this thing is great. Looks ugly, but works like a charm, can't wait to start buying other types of abrasive media. I attached samples of what I did with it.

    BTW, the tank only holds about 7 to 10 PSI, so before I get bombarded with any structural, strength or water heater dangers, the tank hold very little pressure.

    Attached Files:

  2. turboroadster
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    Cut and Shoot, Texas

    turboroadster Member

    how do you cut a windsheild with a blaster? dizzamn, here i go with the search button agin' .
  3. Roothawg
    Joined:
    Mar 14, 2001
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    Slackerville, OK

    Roothawg Member

    Does it work? My blaster averages about 90PSI.

    7-10 seems a little weak.
  4. Richard D
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    Texas City, Texas Between Houston & Galveston

    Richard D Member

    There is a special mask that looks like the foam tape; I guess the sand bounces off. I used to cut patterns for the sandblasted wood signs when I was in the sign biz, but never actually blasted the signs. I guess it would work on glass as well.
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  5. FeO2
    Joined:
    Dec 23, 2002
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    Location:
    Mt.Airy Maryland

    FeO2 Member

    Mine is made with a propane tank.. works great!
  6. 53choptop
    Joined:
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    53choptop Member

    Some specifics, yes it does run 7-10 psi in the tank, but at the gun you can run anywhere from 60 to 90 PSI, the trim in the pic was blasted using 60 psi, and the bumper was blasted at 90 psi using masonry sand

    It uses both the siphon feed and pressure pot systems at the same time, so imagine, the tank, running at 7 psi forces the sand out and feeds it to the gun running at pressure of 60-90 PSI depending on what you are blasting and with what media you are using.

    You can make em out of anything from propane tanks to fire extinguishers to get this plastic buckets (with a lid)!!. Almost sounds like "running engine on water" but it does work. :D
  7. wvenfield
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    wvenfield Member

    Wow, cool, thanks. This beats the hell out of "what's your favorite color" posts. I marked the noted link as I need to build one of these also.

    THANKS
  8. 53choptop
    Joined:
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    Austin, Texas

    53choptop Member

    I know, sometimes good posts will end up in oblivion before the first day..... I'll rename the thread to "rat rod sandblaster" to keep it up-top; come to think of it the tank looks really ratty!

    So what is your favorite color wvenfield?
  9. ntxcustoms
    Joined:
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    dfw

    ntxcustoms Member

    So the 7-10psi pushes the grit to the gun which is then converting it to a siphon type? What cfm does it need?

    Not to be a dick, but please leave the sand alone...I know its cheap. Black beauty is $11.50 per 100lbs, green diamond is $10.00 per 100lbs...were you just using it for a quick test? Don't want to come off as a punk...
  10. Cshabang
    Joined:
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    Connecticut

    Cshabang Member

    Not to be a dick, but please leave the sand alone...I know its cheap. Black beauty is $11.50 per 100lbs, green diamond is $10.00 per 100lbs...were you just using it for a quick test? Don't want to come off as a punk...[/QUOTE]




    "Tried it out with regular masonry sand just to get the pressures right"
  11. 53choptop
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    53choptop Member

    i hear ya, i was using the sand cause i personally didn't think this thing was going to work, you see when you bought the plans, there really isn't any one right way to do it, you use materials you have "laying around". So since FrankenBlaster was built straying away from what the pictures pictures looked like, i needed to make sure i didn't buy the good stuff waste it, and realize it wasn't going to work. So "Tried it out with regular masonry sand just to get the pressures right" and make sure it works. I am actually looking forward to using black beauty and anything esle out there except sand.
  12. Mr48chev
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    Mr48chev
    ALLIANCE MEMBER

    Looks good, thanks for the link.
  13. Matt Franklin
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    Matt Franklin
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    Cool! How many CFM does it need?
  14. 53choptop
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    53choptop Member

    Hhmm, well the gun needs 9 cfm at 90 psi, the gun is a 13 dollar siphon feed gun from homedepot but its not being used striclty as a siphon gun, that being said, i would gestimate about 7 cfm at 80 psi at the gun with 7 psi in the tank....make sense?
  15. Crusty Nut
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    Crusty Nut
    ALLIANCE MEMBER

    Nice,good timing as I've also been wanting to build one. Thanks for the tip.
  16. Tman
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    Tman Member

    Cool, glad to find this courtesy of the search function!!!!! Asked for a blaster for my Bday this eve, may need to amend that !
  17. Shifty Shifterton
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    Shifty Shifterton Member

    If anyone is concerned about CFM you can downsize the gun orifice to cut air consumption. They wear out and need replaced periodically anyway.

    Nice setup, bet the small amount of pressure eliminates uneven media feed that suction blast is notorious for. Very cool.
  18. Big Todd
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    Ferrum Va.

    Big Todd Member

    Cool! I may have to build one of those myself!
  19. Tman
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    Tman Member

    Anywhere on the net that plans like this are free???? Seems like everything can be found that way these days.....(meaning that I am sure the guy selling the plans found them free somewhere himself)...........and my Paypal is currently jacked.
    Last edited: Aug 29, 2008
  20. Tman
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    Tman Member

    A bump for Willy and Jay............Bill Maudlin would be proud;)
  21. i have one almost like that made out of a old hot water tank. i run 90psi and unit has 1" hose. built like a TPI tools unit. run copper slag and it works great. the one part i had to make was where the nozzel attached to the hose, used a combo of pipe and electrical fittings. i need to make a larger opening for filling,3 bags takes some time to fill.
  22. rustrustler
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    casselton nd

    rustrustler Member

    as far as masking off the glass check with a local monument company and see what they mask their stuff off with. I believe they use some sort of rubber tape.
  23. Ebbsspeed
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    Ebbsspeed
    ALLIANCE MEMBER

    One other thing you might consider if making one of these is a low-pressure pop-off valve on the tank/hopper. Just in case you have a regulator malfunction...........
  24. DOugG
    Joined:
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    Location:
    mich

    DOugG Member

    I've built 2 blasters over the years, one held a little over 2000lbs and the other bout 80lbs. Never heard of havin 10lb in the tank. I had same pressure in the tank and line,100lb+,the only thing was a ball valve on the bottom to control sand flow and another chock valve on the line.Both are blastin SOB's.
    I also use an old water heater tank for a sprayer and pump the bad boy to 100psi. , a couple of times it started peein and I had to weld'em up. So are you not sure of your welds? Cause the tank'll hold it
  25. motorsportsaddict
    Joined:
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    Smyrna, GA

    motorsportsaddict Member

    Anyone know if these plugs are righty tity and lefty loosey or the other way around?

    [​IMG]
    [​IMG]
  26. Ranunculous
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    Western Maryland

    Ranunculous Member

    Monument company (tombstone) resist works great for a stencil to blast thru.
    Some gray duct tapes used in numerous layers works well also.

    Please be sure to use a good respirator while blasting,that damned sand doesn't care whose lungs it kills! A wet paper towel inside a good brand of particulum respirator works really well to insure you breath another day.
    Take regular coffee breaks for a beverage of your choice and to let the compressor catch up.

    Cool thread!
    Last edited: Jan 6, 2009
  27. LabRat
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    Perth,Western Australia

    LabRat Member

    Yes , in my exp. they are right hand thread ....
    I actually use an old compressor for a tank on my vacuum presses .
  28. 53choptop
    Joined:
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    Austin, Texas

    53choptop Member

    Hey, look at this, I had forgotten about this thread.

    Funny thing is i just pulled my blaster into the garage yesterday, I hadn't used it for a while, I plugged in some air and it kept going, still had sand in it.

    Last I used it was for this:

    http://www.jalopyjournal.com/forum/showthread.php?t=296834

    Which is why I made it in the first place.

    What I learned is, once you dial it in good this thing works great, especially when you can hold 300 pounds of grit.
  29. Clik
    Joined:
    Jul 1, 2009
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    Location:
    Western Maryland Mountain

    Clik Member

    I was at a Harbor Freight store the other day looking at a pressure pot type blaster. It looked too simple to build one out of the similar size propane tanks I've got laying around (no need to warn against cutting without purging, thanks for your concern anyway). My only question is this: Is there anything in the tank other than just a hole in the bottom that the sand flows to? I wondered if there wasn't a riser tube with holes or something that would allow more air than media to exit the bottom bung? My other question is: What about abrassive water blasting? Wouldn't that eliminate the heat warp I've heard tell of? It seems abrassive water blasting would also eliminate the health concerns of breathing media. Which reminds me: I hear everyone talking about how environmentally friendly soda blasting is. Let's not forget that the waste contains whatever came off the car. If you run into a Greeny Enforcement person you might have problems. Watch your hindparts.
  30. McKee
    Joined:
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    Fantasticland

    McKee Member

    What did it cost to build?

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