Re: Tools and Equipment
Thanks
Did a little Friday night and today, mostly done now
Welded a cap/lever bit to filler bung.
Media blaster by ben a.k.a me, on Flickr
Any parts where the 1/2 bsp galv pipe has the rubber hose on, have been grooved with the grinder to give a better bite. I hope..
Media blaster by ben a.k.a me, on Flickr
Then onto the grit valve, I'd been giving this much thought. My experience of the cheap ebay pressure pots (borrowed one before) has found that using a normal ball valve to control the grit is rubbish, they wear out the side quickly and don't control the flow very well at all..
I had been looking at this with much interest. http://www.mig-welding.co.uk/forum/s...ad.php?t=28960 But with out a lathe might be difficult to do.. I did think about using a all steel Gate valve, but the price put me off really that and would probley jam up.. Again did think about making one (Gate valve) and had a muck about with bits of steel, could be done but was a lot of work.
Then it occurred to me to find out what sort of valve our blaster at work runs, as it does indeed work very well. Seems to be a rubber lined grit valve, much like this http://www.milessupply.com/product.p.../30/prodid/660..
With that in mind I went to a wedding and got pished, while relaxing with a cigar I had a idea.. I can make that quite easy and wont have to worry about seal's on the adjustment shaft ect..
Basically a bit of blast hose inside some steel tube and a G clamp welded in place, I added a turn wheel to make it easy I think it was off a cam chain drive perhaps..
Media blaster by ben a.k.a me, on Flickr
Media blaster by ben a.k.a me, on Flickr
Not too sure how well it will last but, can be rebuilt in a few minutes with new hose and can regulate a very fine amount. Also can open up quickly to clear a blockage ect, I suspect it will last quick well really much better than using a ball valve..
Then popped it all together and added some paint, still needs wheels or castor's when I find some in the shed.. Being all 1/2 tube it can flow a big CFM if I chance upon a cheap diesel road compressor set
Media blaster by ben a.k.a me, on Flickr
Made a little holder up for the blast nozzle, I will be using a 2.5mm carbide one at first. Then when both compressors are running a larger one can be sorted.. This one http://www.ebay.co.uk/itm/SAND-BLAST...item4ac71dfbae
Media blaster by ben a.k.a me, on Flickr
Will just be held in with a olive, not too sure how well it's going to work at the moment. But I can sort a better holder out later on, so when that nozzle is here it can be tested. Though have run some air into it and it's all good so far..
The waxoyl one is just waiting for the ball valve's and 1/8 bsp tap to finished up as well..
Future plans for the blaster if it's all ok are a electro or pneumatic dead man handle and air supply feed valve, having a 2nd blow valve to dump the pot's air would be good too.
Originally posted by Astra Dan
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Thanks
Did a little Friday night and today, mostly done now
Welded a cap/lever bit to filler bung.
Media blaster by ben a.k.a me, on Flickr
Any parts where the 1/2 bsp galv pipe has the rubber hose on, have been grooved with the grinder to give a better bite. I hope..
Media blaster by ben a.k.a me, on Flickr
Then onto the grit valve, I'd been giving this much thought. My experience of the cheap ebay pressure pots (borrowed one before) has found that using a normal ball valve to control the grit is rubbish, they wear out the side quickly and don't control the flow very well at all..
I had been looking at this with much interest. http://www.mig-welding.co.uk/forum/s...ad.php?t=28960 But with out a lathe might be difficult to do.. I did think about using a all steel Gate valve, but the price put me off really that and would probley jam up.. Again did think about making one (Gate valve) and had a muck about with bits of steel, could be done but was a lot of work.
Then it occurred to me to find out what sort of valve our blaster at work runs, as it does indeed work very well. Seems to be a rubber lined grit valve, much like this http://www.milessupply.com/product.p.../30/prodid/660..
With that in mind I went to a wedding and got pished, while relaxing with a cigar I had a idea.. I can make that quite easy and wont have to worry about seal's on the adjustment shaft ect..
Basically a bit of blast hose inside some steel tube and a G clamp welded in place, I added a turn wheel to make it easy I think it was off a cam chain drive perhaps..
Media blaster by ben a.k.a me, on Flickr
Media blaster by ben a.k.a me, on Flickr
Not too sure how well it will last but, can be rebuilt in a few minutes with new hose and can regulate a very fine amount. Also can open up quickly to clear a blockage ect, I suspect it will last quick well really much better than using a ball valve..
Then popped it all together and added some paint, still needs wheels or castor's when I find some in the shed.. Being all 1/2 tube it can flow a big CFM if I chance upon a cheap diesel road compressor set
Media blaster by ben a.k.a me, on Flickr
Made a little holder up for the blast nozzle, I will be using a 2.5mm carbide one at first. Then when both compressors are running a larger one can be sorted.. This one http://www.ebay.co.uk/itm/SAND-BLAST...item4ac71dfbae
Media blaster by ben a.k.a me, on Flickr
Will just be held in with a olive, not too sure how well it's going to work at the moment. But I can sort a better holder out later on, so when that nozzle is here it can be tested. Though have run some air into it and it's all good so far..
The waxoyl one is just waiting for the ball valve's and 1/8 bsp tap to finished up as well..
Future plans for the blaster if it's all ok are a electro or pneumatic dead man handle and air supply feed valve, having a 2nd blow valve to dump the pot's air would be good too.
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