My Home Sandblaster
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Thread: My Home Sandblaster

  1. #1
    Fellow Frogger! geodon's Avatar
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    Default My Home Sandblaster

    My Home Sandblaster-img_0643.jpgMy Home Sandblaster-img_0644.jpgMy Home Sandblaster-img_0645.jpgMy Home Sandblaster-img_0647.jpgMy Home Sandblaster-img_0648.jpgMy Home Sandblaster-img_0649.jpgMy Home Sandblaster-img_0650.jpgMy Home Sandblaster-img_0651.jpg
    I wish I'd done this 20 years ago! Thanks to Shane (DoubleChevron) for the inspiration.

    This trailer became superfluous to my needs once my Landy (a dropside tray) was finished. A nice flexible arrangement: I can store it in the shed and, when needed, pull it out with the Ferguson and position it in the doorway of the workshop with the exhaust blowing the dust well away from where I'm working.


    MEDIA SUPPLY SYSTEM

    I tried to obtain an out of date 45kg LPG tank (as per Shane) for a medium hopper but struck problems. It seemed people thought:

    (a) I was making The Queen Mother of Pipe Bombs OR

    (b) I was in danger of immolating myself by igniting residual fumes with my angle grinder.
    So I went with 5 plastic 20 litre drums. Dirt cheap! They are individually pressurised (but only to 5-10psi) so as to make it easier for the gun to suck media up. Using standard 19mm black plastic irrigation stuff, each has its own tap. I was hoping to use existing bung holes but the stuff drained poorly. So I cut holes in the bottom (& lids) & epoxied the fittings in. When one runs out, I shift the air pressure to the next drum, turn off the tap on the empty one then turn on the full one. Each one holds almost 2 bags of Garnet.

    I also included a purge system: all hoppers off, pressure applied to the purge pipe, gun trigger on and spray until the media is used up & the pipes are clean. That should eliminate the risk of wet media blockages.
    The media in the drums will be air tight so will hopefully stay dry.
    Having 5 drums means I can have different media (Garnet, glass, walnut shells etc.) loaded up & ready to go.

    Re-cycling is by scraping & sweeping used media into bins & sieving back into the drums. I just use fly wire over the funnel and, yes OHS people, I always use a respirator!


    THE GUN
    A suction & mixing device.

    Not too cheap because I wanted easily obtainable replaceable ceramic tips & a collection of air jets to suit the capacity of my compressors.


    AIR SUPPLY
    Three compressors with a total of ~25cfm. It's not REALLY enough. Ideally, I'll remove the baby one and add a 17-18cfm petrol compressor (~$650) mounted outside the workshop later. Big electric compressors need 3 phase power.


    SAFETY EXHAUST

    I used a $38 inline fan & 150mm storm water pipe. The elbow on the mudguard is not fixed so I can pivot the tail pipe (supported by a modified car stand) to suit the prevailing wind. The pipe also provided ports for the gloves.



    MAJOR COSTS
    9mm Plywood~$200 (Bloody Hell!)


    Air fittings ~$150
    Gun ~ $50

    Perspex ~$50

    Gloves $35/pair
    Exhaust~ $100



    The Industrial Chique designer lampshades were free- the barrel of a 20 litre plastic drum cut in half- & necessary. The 12W 1200 lumen lights so close to my eyes were almost painful.
    The spray bench is an ancient base of a display gondola to which I welded scrap steel tube, rod & mesh.
    Overall, I've spent less than what I would have paid to outsource the sandblasting I need to do but I also will gain a lot of time- no delivery/pick up & waiting. Plus, I can paint immediately so I don't have to pay for the stuff to be primed.


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    "Pauses for audience applause......not a sausage!"....Bluebottle

    1949 Citroen Big 6
    1955 MGA1500
    1970 Peugeot 404 Utility (Resto project)
    1962 Renault Dauphine Gordini (Resto project)
    1950 Grey Fergie Tractor

  2. #2
    Fellow Frogger! geodon's Avatar
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    Default Does it work??

    Attachment 63368Attachment 63369

    This came with my Dauphine spares and represents ~5mins work. I can do better but I'm not going to use this so I took it only so far.

    There was a big mastic type deposit which proved stubborn but it came off albeit slowly.
    Last edited by geodon; 28th November 2014 at 11:31 AM.
    "Pauses for audience applause......not a sausage!"....Bluebottle

    1949 Citroen Big 6
    1955 MGA1500
    1970 Peugeot 404 Utility (Resto project)
    1962 Renault Dauphine Gordini (Resto project)
    1950 Grey Fergie Tractor

  3. #3
    Fellow Frogger! geodon's Avatar
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    Default OK who spotted the stuff-up?

    My Home Sandblaster-img_0649.jpgMy Home Sandblaster-img_0656.jpg

    I forgot to put a tap in for the purge line. When I pressurized the hopper, I got a lovely fountain of Garnet!

    Derrrr!!
    "Pauses for audience applause......not a sausage!"....Bluebottle

    1949 Citroen Big 6
    1955 MGA1500
    1970 Peugeot 404 Utility (Resto project)
    1962 Renault Dauphine Gordini (Resto project)
    1950 Grey Fergie Tractor

  4. #4
    Fellow Frogger!
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    Default

    Is it me?
    Can't open attachments.

  5. #5
    1000+ Posts FIVEDOOR's Avatar
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    Default

    I have the same problem
    Any day I wake up and don't have to go to work, is a good day
    Every day is a good day

  6. #6
    Fellow Frogger! geodon's Avatar
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    Default These??

    My Home Sandblaster-img_0652.jpgMy Home Sandblaster-img_0654.jpg


    Quote Originally Posted by FIVEDOOR View Post
    I have the same problem
    rtsnoz likes this.
    "Pauses for audience applause......not a sausage!"....Bluebottle

    1949 Citroen Big 6
    1955 MGA1500
    1970 Peugeot 404 Utility (Resto project)
    1962 Renault Dauphine Gordini (Resto project)
    1950 Grey Fergie Tractor

  7. #7
    1000+ Posts
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    Default

    I love home made stuff. Great Geodon.

  8. #8
    1000+ Posts FIVEDOOR's Avatar
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    I like it
    Any day I wake up and don't have to go to work, is a good day
    Every day is a good day

  9. #9
    1000+ Posts gerrypro's Avatar
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    Looks great George! How do you feel about doing an11BL Front cradle and cross-member?
    Cheers Gerry

  10. #10
    Tadpole
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    Default

    the attachment link 63368 and ..69 lead to a dialog that says it is an invalid link

  11. #11
    1000+ Posts edgedweller's Avatar
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    good to hear you're up with the garnet, George
    saw on the tv yesterday; sand in sand blasters causes mesothelioma, just like our old buddy asbestos ...

    ed

  12. #12
    Fellow Frogger!
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    Also Silicosis - nasty if you get it , but not malignant like mesothelioma

    andrew

    Quote Originally Posted by edgedweller View Post
    good to hear you're up with the garnet, George
    saw on the tv yesterday; sand in sand blasters causes mesothelioma, just like our old buddy asbestos ...

    ed

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