DIY Blast Cabinet

  1. I have been considering doing my own blasting for a couple of years now, on the basis that I like doing things myself rather than pay someone else :-)

    Compressor
    Anyway, I picked up my new (second hand compressor) a few months ago. I was looking for a Wolf Dakota 3HP and ended up finding a Burisch version (same compressor - different label). It was 3 months old and I got it for £200. They were also selling a Clarke Blast Pot along with a Soda Conversion Kit for £100 so I grabbed that as well. (didn't come with a sieve or funnel :-( ). It's the CSB100 model.

    Using My Blast Pot With a Cabinet
    My question is this, If I build my own cabinet, is it worth rigging it up to use the Blast Pot and Hose along with the Soda Conversion, or is this going to be a pain, as opposed to getting a different gin setup?

    Guide Recommendation
    Also can anyone point me to a decent guide on building a DIY setup with recommended dimensions and ball park figure on build cost? There are several around but wanted some recommendations.

    DIY or Not
    I am still considering whether its worth building a DIY as opposed to just getting my parts done by someone else, or biting the bullet and buying a cabinet. I could only really afford the larger of the two Clarke types.

    Tumble Dryer Conversion
    I also had a thought this morning about popping to the recycling centre and picking up one or two old Tumble Dryers and using them as the basis for the cabinet? Or is it better to construct from Plywood with a metal inside?

    Thanks for reading my mornings ramblings :-)
     
  2. brightspark

    brightspark Member

    Messages:
    26,806
    Location:
    yarm
    build a cabinet big enough to take a car wheel get a decent extracta for it . I use a 4inch woodchip unit on mine ithas a suction gun inside and I also use the pressure pot with blast hose poked through the glove hole. il take some picture later and post
     
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  3. Dcal Member

    Messages:
    1,250
    Location:
    Antrim Northern Ireland
    Agree with @brightspark post.

    Your compressor is small for blasting but if you have the time to wait or are only doing small parts it will be fine.

    The pressure pot will be a huge improvement on a suction feed so even if you buy a cabinet it is well worth converting to a pressure pot. However the pressure pot will need a few mods before it will work really well (although still far better than a suction set up)

    I made a DIY cabinet out of an old galv water tank and while it worked it was more work than it was worth.
    Second hand cabinets come up for not a lot of money (been a few in the for sale section recently) and it might be a better way to go unless you need a particularly big one or just want to go DIY for the hell of it.
     
  4. MetalMonkey Member

    Messages:
    73
    Location:
    UK
    If you are looking at buying a cheap one (as opposed to Guyson etc), look at something like the SBC420.
    You want one with the media flow unit on the bottom and a foot operated pedal, not cheapy syphon gun style ones - they suck (or rather, they don't).

    Most of the parts for these bigger generic Chinese cabinets are also available cheaply on ebay etc. So it is quite easy and inexpensive to get the glass, foot pedal, gloves and media valve unit.
    I built mine out of plywood as I needed something quickly that needed to fit in and odd space. If you put a piece of sheet metal or rubber in the back it will deflect most of the blast and the wood will last a very long time.

    Paint the inside white and fit some sealed LED lights - the more light you can get the better.

    Pick up a Clemco BNP style gun (these are also available as cheap clones which take the same consumables) and invest in a carbide nozzle for it - they aren't cheap but last a very long time.
    This sort of setup along with the media flow valve is far superior to syphon guns and rarely, if ever, clog. You will need some serious air to run the setup 20cfm+

    Dust extraction is crucial, not only for your health but if you want to see what you are doing and not replace the glass every 5 minutes.
    I use a Clarke 4 inch wood dust extractor and pipe the output directly outside.
    The other option would be a shop vac and a cyclone which would help you recover some of the media.
     
    slim_boy_fat and Dcal like this.
  5. What mods will be needed to the Blast Pot?
     
  6. Last edited: Oct 12, 2019
  7. Dcal Member

    Messages:
    1,250
    Location:
    Antrim Northern Ireland
  8. Turbo Member

    Messages:
    3,180
    Location:
    Fermanagh, Northern Ireland
    If you pm me your e-mail address I can send you a set of plans for a blasting cabinet I got from scottmk1 on this forum.
     
  9. Well today I managed to get a Tumble Dryer from the Recycling Centre.
    With some modification and fabrication it could / should make a decent sized cabinet?

    [​IMG]

    As you can see it in the pic, I am thinking of laying it on its side and the side facing you will be the base into which I will fabricate a hopper. The top in the pic with the hole will have a side door fitted to it and the other side is open but I will fabricate a lid with a perspex window in it.
    Probably going to hunt out another tumble dryer for the additional metal for the lid and hopper.

    Need some gloves and some hose fittings and an extractor.
     
  10. bricol Member

    Messages:
    756
    N.Yorks, UK
    I bought a cheapo Chinese one on ebay - £160 from Germany. Screwed it together one evening in the living room (not the legs!) and plonked it in the shed. Collects media in the bottom, with an opening to allow you to drain it, with an LED in the top, glass, protective sheets, gun, and gloves.

    Used it once then applied sealant to every join - the supplied stuff wasn't exactly dust tight!

    Figured the time and effort required, never mind materials, to make something were better spent actually using the thing. Needed a couple of tweaks to the door to make ti seal properly, but it does the job well now.

    It runs reasonably well with my 2.2kW hydrovane. Blasting pot needs my 3kW belt drive piston compressor linking in to if you want reasonably continuous use using decent sized media and nozzle.
     
  11. Could you link the Chinese one you bought ?
     
  12. jordan1 Member

    Messages:
    1,880
    Location:
    Yorkshire England
    You may find that you will soon blast your way though, bit too thin IMO.
     
    JonnyAlpha likes this.
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