How to make a vapor blaster gun/nozzle - Recap
2019 ж. 13 Мам.
61 716 Рет қаралды
After my previous video of the diy nozzle, I had a few questions asking for a better view of the inside.
This is a video I promised with a better breakdown of how I made my vapor blaster nozzle.
/ aelnewzealand
My e-book is now available for sale. It combines much of the info in these videos into an easy to read PDF, and includes diagrams and illustrations to improve reader understanding.
If you are interested in the book, please head on over to armoury-enterprises.myshopify...
Thanks for all your work in testing, experimenting and the design info.
I have been waiting for a breakdown video of your nozzle. Now I’ll have a crack at whipping one up. Thanks and keep em coming mate.👌👍
Thanks mate! Keen to see your results!
@@ArmouryEnterprises you. Sell the. Vapor blaster. Gun
I’ve found that a for the air jet a 10mm x 100mm bolt can be drilled in a drill press and threaded into the air inlet hose barb. Makes it easy to adjust the gap behind the ceramic nozzle and it’s workable for someone without a lathe. I’ve used this video and built a nice nozzle for my 5hp compressor that works well with a 3/32 air jet and a 6mm nozzle.
That's some awesome advice! I did think about using a bolt, but I have been put off in the past drilling hardened bolts. I always love seeing these types of nozzle pop up all over the internet! Cheers
Great video. Thanks for the details. I'm keen to convert my cabinet over and make my own gun. Cheers
Would be keen to see the results if you can put up a video! Cheers
Thanks for sharing! I've just got a blast cabinet and Im planning to convert to vapour blasting. Your channel is a goldmine of info! Cheers
Thanks for watching! glad you are enjoying the content!
Thanks for the vid bro, I’m just getting into blasting. The explanation and idea behind the design is awesome. Pretty much a carb, needle and main jet setup. Super awesome.
Hey mate, thanks for watching. Yes its very similar to the venturi action of a carb. Its hugely important to get the gun to work efficiently.
Awesome run down bro!
Thanks Mike!
great video, love these make it out of readily available parts
Hi a Nice job and well done and well Explained, It is something to play about with later, I just bought a new one and I am just new to Cabinet blasting. But great Stuff. Tom in Ayr Scotland.
Thanks Tom! Hope your cabinet serves you well!
Appreciate the great write up!
Thanks for watching!
to measuer your clearance yo can use playdogh or plastacine to get the distance between air nedle and the ceramic nozzle
great, nice and thanks
Very good
Can you use that head on a pressure cleaner for wet blasting
Great video . Can this be used on a normal media blaster with 40 grit garnet . And does the hole go completely through or is the simple on the end just to assist on the lathe Just been through the comments and found the media answer and will look at the drawing . Thanks for sharing this build . im looking for something to update my blaster but dont see the need to pay mega money on a huge flow gun .
Hey Gary, Yeah it was surprising how often I got this question. I am yet to do any extensive testing but initial experiments look positive. The most conclusive (at least in my non scientific mind) evidence so far is the improvements in wet blasting over the standard guns. Are you referring to the hole in the aluminium air needle? If so, yes it goes right through. There should be enough info in my videos to build one, but if you get stuck, all the info is available here: armoury-enterprises.myshopify.com/products/diy-vapor-blasting-guns Thanks for watching!
Slide some thin medical rubber tubing over your air needle all the way to your 45deg end , it will last longer as the slurry enters it will hit the air needle at a harsh angle the rubber will absorb the impact and abrasion, after thirty years of blasting this one tip saved me thousands on premature boron tip replacements 👍
All the cheap ebay/ali express nozzles have that. I never bothered because I have never had one wear out. The slurry with glass bead is so much softer than dry blasting medias. I have one nozzle thats 4 years old and still has the same air jet and pink alumina ceramic tip.
Great video! Does changing the jet size have any effect on the finish since it is using less CFM? John
Hi John, Honestly I haven't done enough research to know what differences are achieved with different jet sizes. What I can say is that too small a jet takes much longer to achieve any result. The rule of thumb I work off is to work out the largest jet that the compressor set up can sustain. Thanks for your question
Armoury Enterprises I purchase one of the eBay guns and I made a smaller outer nozzle (8mm) compare to the stock (13mm) and it made a big different but have not tried changing the size of the jet yet that's next. Good work keep it up Thanks!
@@TheJR914 Thanks! Yes the 8mm to 10mm ceramic nozzles seem to be about right for the average home set up. I only go larger if the cabinet will be used on an industrial supply.
Great to see how your DIY nozzle is made. Can I assume that it would work just as well for dry blasting? Kind regards Paul (UK)
Hi Paul, Yes they work in dry cabinets too. I tested on in my latest video. Thanks for watching!
Very nice video. And I will design the cabinet type wet blast and gun in my final project of university. And I analysis the gun parameters with ansys cfd. So can you give advice for this subject and size of guns . thank you from Turkey already..
Thanks for watching! What an awesome university project! I would be very interested to see your findings. Thank you for the offer! Best regards from New Zealand
Hi Josh, Great job on these videos. You are really boosting this community. I'll try building this myself without a lathe and have a few questions, if you've got time. - What is the diameter of the stud used for the needle? And what do you thread the end to? I don't have that many threading or tapping tools, so it would be great to use the same dimensions as you do here. I would prefer not to machine the tip of the needle as you do, was that only necessary because you didn't drill out the coupling (I'll still taper the tip though)? - Do you reckon a threaded stud as the needle would limit the flow of the slurry? - Is the coupler just a 1/2" to 1/2" with a compression nut? - Is it possible to just use two 1/2" barbed fittings - One instead of tapping the end cap + a 1/4" barbed fitting (or maybe a 1/2" won't seal up?), and one instead of the buteline fitting (or is it just better to strip a buteline?)? Thank you again for your videos! Cheers, Jonas
Hi Jonas, Sorry for the delay in getting back to you. The air needle used is 3/8ths, or 9.5mm works too, but make sure that it will match the intter diameter of whatever hose barb you use. the brass and aluminium seem to be fairly forgiving in what size tap you use. I have had success with both 3/8th UNF and m10x1.0, and m10x1.5. It is good to taper the tip to follow the contour of the ceramic because you want the tip of the air needle quite close without obstructing the slurry flow past the end. You can put it in a battery drill and file it. Yes, you can use 1/2"barbed fittings for both on some inline filters. The Chinese imports have a different thread so it needs the cap to be drilled and tapped. Thanks for watching!
Awesome design !!! ..... what variance to the design should I consider if I wanted to make a sand blasting gun instead ? Thanks in advance
Hey! Thanks for the question. The two things that you could change are the air jet diameter and the distance between the end of the air jet and the ceramic tip. Although it should in theory work in the configuration shown in the video. Check out the latest video on sandblasting cabinet mods (Kawasaki spanner restoration vid) if possible, I would recommend a pressure fed metering valve. Hope this helps.
Will do ! I’m going to give it a go cheers !
Still waiting for all the parts to make one of these tools. What size ceramic nozzle do you think may work well with air and baking soda? Found a variety of 15mm nozzles in 4, 6 and 7mm. Cheers
Hey mate. Sorry I thought I had replied to this. This nozzle will work with most blasting materials including baking soda. The size of the nozzle will depend on air volume and the type of blasting. With wet blasting, I usually use the larger. I started with 7mm but it was barely large enough. I now use custom 8mm and 10mm nozzles.
Yeah, I was thinking of using one of the smaller sizes because I'm only using air and soda with this gun. Have the aluminum rod for the inner tube and will be machining it on my mini lathe soon. I'll try to get a video together, so you see what I've done. Always appreciate your help. Cheers from America m8
What modifications would be necessary for this gun to work for both dry media and vapour blasting?
This gun will work with both wet and dry. Just swap out the ceramic nozzle to suit the media and air supply. Thanks!
Amazing gun. Question, "7" in ceramic is for 7 mm pass diameter? if not, could you tellme how much does it diameter?Greetings and thanks a lot.
Hi Gabrial. Yes, 7mm internal diameter. I bore them out to 8mm as it seems to work a little nicer. Cheers!
I made the air needle with a 5 mm hole while the blasternozzle is only 6mm. this seems to put over pressure and push the water back. Will i have to make the air needle hole diameter much smaller or is the problem with the pump? I put a check valve on the pump but that didn´t help.
Either make the air needle hole smaller or get a bigger nozzle.
Do you have a technical drawing for inner part the nozzle?
Hi Andy, sorry I missed your comment. All the technical stuff for this blasting gun can be found here payhip.com/b/K6wu
Will these work on suction only (no permanent water feed up the the gun) or will it clog up?
Yes, It is possible to make them work as a syphon fed nozzle. However, you still need to agitate the media in the water. kzhead.info/sun/pZ2TgcanoGePrJE/bejne.html
hi would a brake pipe with a mig welding tip drilled to size work. could solder or braze the tip on ?
Hi, sure that would work. Some people have built these with brake tubing brazed into a 1/2" fitting and cut to length.
I'm sure you mentioned it, but even on second watch I can't catch what size strainer unit you start with. I'm ordering parts from eBay and there are a few options.
Hey Nathan. Strainer size doesn't matter as you remove the strainer basket. It's more important to get one that has a straighter casting so it doesn't get too thin when you machine out the inside for the air needle.
@@ArmouryEnterprises so any of the body sizes work? The options at 1/2" to 1".
Yes. The principals are the same. But to make the ceramic tips fit best it's better to use the 1/2" model.
@@ArmouryEnterprises Thanks heaps.
And do you vary the 4-5 mm distance from the air nozzle to the ceramic venturi for different blasting grits?
Not for wet blasting, I usually just set it up at 5mm, and change it during testing if it doesn't perform as required.
@@ArmouryEnterprises Thank you.
do you have any specs for your diy gun..or any video how to fabricate that inner tube (aluminum)?
Hi Leonardo. If I remember correctly, I think the specs are in one of the videos. Otherwise they can be found in my DIY gun build guide on my website. Thanks for watching!
Спасибо большое
Не за что
Hey josh I just made one of these nozzle/guns exactly as you did in this video. Unfortunately I made a small error when drilling the 5mm hole, I went a tad too far and so instead of my 2.5mm hole being 15mm in depth it’s actually only 5mm depth. Can you see this being an issue? No problem if so as I have a lathe and could make another one. My unit isn’t set up yet so can’t test it. Cheers
Hi Daniel, You may get away with it. The longer hole just narrows the stream a little, but there are turbulence regardless so the gains are not exactly game changing. With vapour blaster guns being positively fed, it shouldn't create to big an issue. I would just run it and if you feel like its not performing right, try remaking that part. Cheers Josh
@@ArmouryEnterprises thanks Josh. How much clearance do you leave between the air nozzle and ceramic tip? I chamfered the nozzle to match the tapered section of the ceramic tip - do the two parts need to be seated together to work efficiently or is a small gap necessary?
@@Dsm152 you want a 4-6mm gap between them
Hi, what size hose for the slurry feed and air feed to the gun do you use?
Hi, On most of my cabinets, I use 12". The big systems that use large air supplies have 3/4" lines. Cheers
@@ArmouryEnterprises is that the ID of the hose? Cheers
@@jonny8730 Yes, Hose ID. Josh.
I built this nozzle as close to the video as I can see. The water part works but it won't draw sand. Any ideas.
When you say it wont draw sand, can you give more details? Is your slurry agitated? And is the water to the nozzle positive pressure? Or siphon fed?
Are they effective as siphon feed only? Provided the tank is agitated.
well done mate, helped alot cleared up some ?
Thanks Glen!
RISPECT
Maybe I missed it, but will this nozzle work for dry blasting too?
Hey, theoretically yes, but I personally have not tried it. If this were to be used for dry blasting, I would recommend making the inner air jet out of something harder than aluminium and fitting a protective sleeve of silicone hose or similar.
@@ArmouryEnterprises Thank you.
Sorry to sound dumb, but what is the body originally, what are we looking for ?
Hi Darren, I think I mentioned in the the video, but it is a brass in line filter in 15mm or 1/2"
@@ArmouryEnterprises Ah, sorry I thought you were referring to the gauze when you mentioned inline filter .... thanks for the reply, very helpful ..:)
what is the od width of the narrowed part of the air jet
Hi D Narrowest part of the taper at the end of the air jet is 5mm Thanks for watching!
How much would you sell for? Willing to purchase and pay shipping to US.
Hi Philly, I sell the custom guns at $43USD. Total for blasting gun (with 8mm nozzle) and: Parcel post (not tracked - 3 to 10 days est.) = $53.50 Courier (Tracked, 3 to 6 days est.) = $73.55 I am currently out of stock and awaiting shipment if more components for the next batch. Thanks for watching!
@@ArmouryEnterprises Cool definitely would appreciate an email for when you can get them. Would like to get asap. Thanks again EMAIL: dshum20@yahoo.com
can i just buy one of your DIY guns? how much you think it would be, i just dont have the tooling to make one like yours.
Where abouts are you based? Would have to check shipping costs etc.
@@ArmouryEnterprises California USA. Cam I buy one. I'm working on a set up from stuff I find. I'm going about it a little diffront. I would be happy to show you once I have it up and running
@@kyusong3201 Would be really keen to see what you are setting up. Shipping from here isn't great and our raw fittings are pretty expensive. Best I could do for you would be $45USD.
@@ArmouryEnterprises let's do it how can I pay for it. 45+shipping? I have a new idea on my diy vaper blaster.. I really like your set up. I would like to buy one of your nozzles because like you said you can adjust to the air gap. Not seen that before
@@kyusong3201 Sorry, my replies are getting deleted. you can email me on 'josh at armouryenterprises' dot com (I think they are getting deleted because of the email address)
hello sorry are you make map plan your gun im intresting make one in frenche for me i have lathe
Hi, Sure! you can find it here. armoury-enterprises.myshopify.com/products/diy-vapor-blasting-guns
how much do you want to make than to me? and send it to norway
Hi! Please send me an email at josh@armouryenterprises.com for nozzle price and shipping quote. Thanks!
Camera too far away, but great video
Fell asleep 😴
Why make something you can by for $32 at Amazon. That is the complete kit with spare ceramic nozzles
Because in many places around the world, buying from amazon, ebay or Ali express can take up to a month for your stuff to arrive (That was why I built my first nozzle) And secondly, because the stuff you get from Amazon, ebay or ali generally require massive air supplies in order to function properly. This type of nozzle works much better for smaller, more common compressors, finding a good balance between performance, and conservation of air. Thanks for the critique though.