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Topic Review (Newest First)
07-26-2013 11:08 PM
MARTINSR Interesting, hmmmmm

Brian
07-26-2013 06:47 PM
DuggMills Another two cents worth here....

Evintho has a great idea that can be incorporated simply and at little expense.

The concept is to "fluidize the bed". That is to flow a volume of air up through the mass or bed of media to make it more fluid, disperse water and to reduce consolidation so that it flows more consistently to where it is drawn to the nozzle.

If you're in a humid climate the problem is most prevalent as humidity acts as a glue to hold media in lumps in the supply tank resulting in sporadic or interrupted media flow. Light and fluffy is the answer (does that sound like a laundry product commercial?)

Another approach is to use a vibrator......no, not that one. Air or electric vibrators are common in material transfer systems to prevent or lumping or tunneling. Gawd, they're loud.... maybe not the best for small applications like home media blasters.

Je vais prendre Chardonney
07-10-2013 06:52 PM
lakeroadster Nice thread Evintho, thanks for the how to.

As an FYI: Nickle slag also works great and I reuse it up to 3 times (filtered through an old screen door screen between each use). I blast parts on a tarp in the yard, nickel slag is green, so any that gets out into the yard blends nicely with the grass :-)

http://www.unitedwesterndenver.com/i..._category_id=9

:-)
07-10-2013 05:57 PM
douglashwy i own one of these hf blasters too i just changed all ball valves works awsome but would like to compare to yours so thanks for the idea will be replacing rest of parts soon
07-10-2013 05:37 PM
evintho
Quote:
Originally Posted by rjd048 View Post
Good info on the blaster, can you elaborate a bit on the picture of the in line filter you have pictured. I use two oil-water seperators in my line and am looking for something a little better on removing the moisture when sand blasting or even running an air tool for extended lengths of time as they even start spewing water out their exhaust.
Sure! Got my MotorGuard filter off of Ebay and it came with 2 filter elements. Not sure what the Amazon unit comes with.

Motor Guard M-30 1/4 NPT Submicronic Compressed Air Filter - Amazon.com Motor Guard M-30 1/4 NPT Submicronic Compressed Air Filter - Amazon.com


I heard of a guy that used a roll of toilet paper as a filter element. He said it worked pretty good! I run a water trap 5' off my compressor then run the air hose outside and connect it to my contraption. The air goes through the second water trap (just one I had laying around for years) then enters the MG filter. I run a short hose from the MG filter to a third water trap that's on the blaster so any moisture that may get through the filter gets caught in the third water trap. I've never had to drain the third trap!
07-10-2013 12:32 PM
rjd048 Good info on the blaster, can you elaborate a bit on the picture of the in line filter you have pictured. I use two oil-water seperators in my line and am looking for something a little better on removing the moisture when sand blasting or even running an air tool for extended lengths of time as they even start spewing water out their exhaust.
07-06-2013 07:30 PM
MARTINSR The closest south I found was in Gilroy, thats quite a bit below San Jose. I am wondering if my blaster would be different though, it's a siphon feed and the hose is half inch or so the whole way to the nozzle. I can give it a try, like I said it's a pretty cheap experiment.

Brian
07-06-2013 05:30 PM
evintho John,
You're welcome!

Brian,
The medium Black Diamond tends to plug up at the nozzle tip. It's too big to go through. I use the extra fine. The fine may work but the medium won't. If you get up to the north bay we have a TSC in north Santa Rosa. The next one is in Ukiah. Going south, I believe there's one in San Jose.
07-06-2013 04:50 PM
MARTINSR Heck yes this Black diamond works better than sand, BIG TIME! I am thrilled with it's performance. I really want to get the bigger one and give it a try, the bag was only $7.88, I think I pay more for sand at my local hardware store. I hope I can find a place near by to get it. I will keep looking, but if all else fails I'll get it where I did yesterday when I go to visit my kids in the Sacramento area.

I have heard it mentioned before but it never quite sounded as you put it and I am so damn glad I read this while I was at my daughters yesterday.

Brian
07-06-2013 04:30 AM
John long
Quote:
Originally Posted by evintho View Post
I don't see why not. You just need to make a bigger hole for the material to go through. Pull your feed assembly and look it over. From what I've seen it looks pretty much just like the 90 lb blaster assembly.
Will do and thank you for posting the information.

John
07-05-2013 11:55 PM
MARTINSR I'm telling you, first thing tomorrow morning I am going out there and digging out my sand blaster. I have been using a little hand held one that needs to be filled every few minutes. I would love to have something that works better. As far as the grit, I really think I would like something coarser but I will give it a try and see.

Brian
07-05-2013 11:05 PM
evintho I don't see why not. You just need to make a bigger hole for the material to go through. Pull your feed assembly and look it over. From what I've seen it looks pretty much just like the 90 lb blaster assembly.
07-05-2013 08:57 PM
John long
Quote:
Originally Posted by evintho View Post
You're very welcome! Good luck with your blasting!
Brian, let us know how the black diamond does in your siphon feed.

Evontho, do you think the same mods would work on my HF 40 lb pressure blaster?
07-05-2013 08:19 PM
evintho You're very welcome! Good luck with your blasting!
07-05-2013 08:04 PM
MARTINSR I ran down to the nearby town and bought a couple of bags of Black Diamond extra fine (40-80), can't wait to try it out tomorrow.

Thanks for the tips!

Brian
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