John Doc.: One other question. Is there a technique for gutting the spark-plug, or a
particular order to do it in? I've tried two different ones (NGK and Beru),
and had no luck with either, The core in both is too hard to drill, and
I've had no joy trying to punch/drift them through. Any suggestions?
MrToolmakerman: @plumcrazzzy i used old spark plug(drilled out) two conical metal peaces ,
between it is small hole 3mm for sand(just normal playground sand i use) ,
i will post picture or movie later, that will make everything more clear.
problem is the small compressor i have. it works but i have to w8 for comp
to built up pressure. it sucks, i have painted garden house this summer and
my comp was on fire after 2 hours haha. greetz
plumcrazzzy: @daredan111 Hi I think that the idea of cone shaping the bottom is great !
I've never used corindon where can you buy it. And what type of tip would
hold up to it can't imagine only two hours a spark plug tip. Sound like you
would need a tip made of diamond. But I'M glad that it seems to be working
for you. PS if I get low on sand I give mine a shake to . Thank :)
thinkpad411: So you just need enough pressure to force the sand into the high velocity
air stream (low pressure, high velocity).
plumcrazzzy: @gildardo011 Hi there. I bought the hose at Farm&Feet in the Ag department
it's 1/2" ID it works fine at 100psi but I wouldn't go over that . Not sure
but regular air hose mite work Don't know if the smaller ID would hurt that
much. Thanks alot . Had fun making it .
grumbern: Using an old spark plug for ceramic nozzles is a nice idea! :-D
plumcrazzzy: @panos215 Hi there in Australia. I have always used silica sand but any
sand should work fine.I have thought some time I would try some aluminum
oxide because of how bad sand is on the lungs. One thing is make sure that
the sand is dry. Good Luck !
panos215: Down Under Australia- Thanks for sharing this information. I have some old
Cabinets- Steel offc ourse with Surface Rust that I wish to restore!! Are
you using Beach Sand??
MrToolmakerman: @panos215 i used sand that is used in concrete, works fine, big problem is
capacity of compressor
plumcrazzzy: Hi. No the psi. is the same on top and bottom of the sand it is gravity
that causes the sand to enter the air stream like a hour glass. Thanks for
the comment. :)
Panhandleplanetech: Why can i only do one thumbs up! its a 2 thumbs up for being such a smart
fellow with that spark plug nozzle..
plumcrazzzy: Hi from the U.S.A. I'm sorry to say if I had plans I'd be happy to send
them to you but it was a in the head plan build as you go kind of. Most of
it was stuff from the local junkyard. the principle is described in the
video and is fairly straight forward but if you have some questions I'll do
my best to answer them. Thanks for asking and good luck on your build.
Reinis Sproģis: Hi. Thanks for uploading vid. What is the minimum pressure for sandblaster?
zhogazXhupip0p: thanks so much, that´s great idea
aampudia8: hello!! look.. i got some plans to do that, and im gonna need some
sandblasting for some stuff at work.. so i was thinking in building
something like this.. (we are a plumbing contractor company, so we should
have all the needed parts in the warehouse) but i was wondering if you
could show me how it works before i build mine... it would be nice if you
upload a video showing it working :D thank you!!
plumcrazzzy: @oldpacrat Hi. The spark plug must be a old Champion J-11Y J12-yYJ14Y there
the only only ones that I could drive out the electrode. I broke off the J
of the plug and drove the electrode out from piston side moving to the plug
wire side. Hope this helps :)
oldpacrat: can't figure out how to get sparkplug apart. please help>
plumcrazzzy: Hi I'm not sure how low you could go but I think that you could get down to
15 or 20 psi but it wouldn't remove much rust or paint I find that for most
jobs that 100 + psi works good. Thanks for watching.
plumcrazzzy: Your very welcome :)
plumcrazzzy: @grumbern Recycle and it was free not sure how much nozzles cost maybe
$10.00ea . I wounder if anyone found other plugs that work old champions
are all I found sad to say that was all they where good for. I could ruin a
set In a afternoon in a 67 barracuda I had in the 70's . They worked fine
for most cars but I swapped them out for A/C's never had another problem .
2102Chris: very good idea with the spark plug m8 ;-)
lundinoZ: thank you now i gonna make some :P
fabrygr: hi, I would like to know how to make a hole in the center of the spark
plugthank you very much
daredan111: @plumcrazzzy Hi! Here is a photo with a sparkplug that I used for about 7
hours :) imageshack.us/photo/my-images/521/06102011090.jpg/
plumcrazzzy: @bubbatron4 Good luck and have fun. I'll be looking forward to the video.
bubba nader: Wow, this is cool. Gonna give it a shot. I will show sum vid.,also. Thanks
owvenus: hey i like ur video and gives me an idea. how much PSI goes into the tank?
and what are the diameter of all those inlet hoses and outlet hoses? thanks
in advance . cause i'll make one to clean the cylinders of my bike that are
impossible to make shiny. more power dude!
Ciobanu George: Greatings from Europe! I want to build something like this, can you help
me? If you want to share the plans for your blaster, please, give me an
plumcrazzzy: @oldpacrat Hi again I used a small Allen wench that I cut off the 90 Deg.
angel. Any high carbon steel punch should work fine . You could try and
start it just with the hammer first but try not to enlarge it or it well
crack the porcelain when you drive it the rest of the way. If it flattens
out grind it down or you could grind it some first . They are a little had
to get started I put mine in a vise to hold it. Sometimes I get a small
chip at the J end of the plug but it well still work.
oldpacrat: thanks for the reply. one more question. what did you use to drive out
George Bischoff: VERY NICE, SO WHAT KIND OF HOSE DO YOU USE, TO THE NOZZLE?
bassmandompanter: can i ask how you drove the centre out, because my brother has tried but it
just crack ? any help please?
MrToolmakerman: i made my own sandblaster, the sparkplug is a good idea, it works nice.
Tony Vincent: Love the spark plug. That's really thinking outside the box. Thanks for the
plumcrazzzy: Thanks Tony. I got a good kick that it worked too save me a buck and thats
plumcrazzzy: @shortyjk95 No just as long as the pressure is the same on top as the
bottom the sand well flow like a hour glass smooth and steady.
John Doc.: You Sir, are a genius! I just need to remember where I threw all those old
plugs now... Is it necessary to have all three of those valves in the
set-up? I was planning to just use one lever-ball valve on mine (the main
inlet one), and have it foot controlled and sprung closed. I'm building a
small cabinet for it, so the pot itself will always be a few feet below the
outlet nozzle. I can easily add a valve to the pot outlet pipe, if it's
needed to 'fine-tune' the grit flow?
daredan111: @plumcrazzzy from diamond would work because it's the only material harder
than corundum :) I bought it from a german company and it costs like 1,5$ a
pound. It's grate because you can use it many times (up de 90 cycles
according to the producer). Thanks for your video, it was my inspiration in
building the sanblaster.
plumcrazzzy: @MrToolmakerman Hi just wondered what brand of plug and number you used.
fabrygr: I really liked the idea of the candle, can you tell us how to remove the
electrode because it is really hard?
plumcrazzzy: @motorcycleengineer Hi. It sounds like a air supply problem what size is
the supply line from the air compressor. If you look at the air hose ends
and fitting that is were the most of the restriction is usually. My hose on
the air and sand end is 1/2'' ID. or looks about 12.5mm ID. I would think
that 14mm would be just fine. My supply line is a littel to small but if
you look at the ends of the hose some of the brass ends have a bigger
openings than others plus don't use couplings either.Thanks
Dragones99: Hi, Please, you could be more specific and write the kind of material that
you used to make this sandblaster. I want make it, but I haven't a lot
experienced, Thx ....
gildardo011: hey there... what did you use for the hose? awesome project by the way....
daredan111: Hey, it works great! The only thing that I think about changing on my own
is to make the bottom of the tank in a cone shape, otherwise when you get
short on sand it will stick to the concave bottom because of the above air
pressure. I need to shake my tank in order to get it all out. The spurkplug
works great with sand but when I switched to corindon it wear out in a
couple of hours. Good that I have a lot off spurkplugs in my shop.
grimreaperws: @panos215 sup im also down under.... also a sand blaster.... We use grit
and garnet for the job.... but your looking in sand grit is idea for you so
your job is easy and fine sand that cleans nice... in adelaide air port i
did all them steel work ;) Hope that helps you.
motorcycleengineer: Hello, nice vid! I made my own sandblaster as well but was wondering, what
should the internal diameter of the hose be that goes to the nozzle? I can
blast for a few seconds but then pressure drops and no more sand comes out.
The internal diameter of the hose i used is 14mm and the nozzle 3mm but I
think the 14mm are too much. Any suggestions? Thanks.
plumcrazzzy: @Jessem4681 I think so as long as the air is dry. You could use steel shot
for shot pinning with a larger nozzle as long as the medium flows like an
hour glass I think that it would work. Dry ice not sure how they do might
need a feeder?
MrBlaze001: Good tip
shortyjk95: dont you need a regulator for the air going into tank that holds the sand?