Introduction: DIY $5.00 Sandblaster

Picture of DIY $5.00 Sandblaster

Insagram: Withered_perception

I have some rust on my driveway and some old rusty tools I got from my grandfather years ago.

I have been looking at sand and soda blasters for about 6 months. They are either inexpensive and cheap or very well made and expensive!

So I decided lets just make one.

Step 1: Get Crap

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Go get some crap at Harbor Freight. This air gun kit ran $4.99.

Now find a bottle in the trash.

Step 2: Say "Hi" to the Cat

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This optional but important step may be the difference between you succeeding or failing.

Step 3: Cut the Neck

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Remove the locking neck for the cap.

Step 4: Drill

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Grab a 3/16" bit and drill the neck just under the cap.

Step 5: Test Fit

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Push the air rod in. It should be very snug!

Step 6: Mark

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Mark the bottom of the air tube. Spin the tube around so you can hold the handle while you file.

Step 7: File

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File a hole through the tube to let your media in. When you're done spin the tube back so the opening is at the bottom.

Step 8: Fit

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Get the tube back into the hole.

Step 9: Seal

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Not looking for the glue to actually stick here.

Just looking to prevent the hole from opening up too much while under pressure.

Step 10: Test Blast

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Put your Saftey goggles and gloves on and give it a good blast. I shot at the rust on the drive way and removed a spot (the white part) in just a few seconds.

I will give you an update on the driveway once I have time to do some actual blasting on it.

Step 11: Real Deal

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An old set of needle nose (rusty as hell...)

Step 12: Blast Away

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Clean as a whistle!

Step 13: Extra Step

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Because everyone keeps asking this is my air compressor a California Air Tools 10020c running at about 40 PSI for blasting.

I also use 20/40 crushed walnut for my media.

For PPE I use gloves, a P-100 respirator, long sleeves and a face shield. No excuses! Do not compromise safety!

Video coming soon! Check back in the next few days.

Instagram: withered_perception


JoeyyBoyy (author)2017-11-18

Need clairifcation: About that slot opening in the metal tube. Is the slot facing the cap or the top of the bottle?

DonaldC67 (author)2017-11-18

Neat idea, and surely will work well with any large air compressor. Many small and moderate-size ones may suffice, but won't have the CFM necessary for the Harbor Freight device, which requires 7 CFM at 90 psi.

carbonbasedlife (author)2017-11-18

HF has a premade one for $19.95. Looks like it can take higher pressure and you should drill some part of it out for better performance.

the modder (author)2017-11-18


Luke Wilson (author)2017-11-18

That's brilliant.

mayochick (author)2017-11-17

Hi, where do I get the walnut?

Great instructable!

offramp (author)mayochick2017-11-17

Harbor Frigh--er... Freight actually sells a variety of blast media. Walnut is not required, here, it's just what the author used.

cecilsaxon (author)2017-11-14

Saying hi to the cat while doing an Instructable is just like waving to cows on a motorcycle. It is best if you just do it.

davel (author)cecilsaxon2017-11-16

Cows on a motorcycle? How do they work the brakes?? :D

Genius 'ible btw.

CementTruck (author)davel2017-11-17

silly question. everyone knows cows don't use brakes...they use the horn. ;)

LeslieGeee (author)cecilsaxon2017-11-14

I wave to steers while on my motorcycle and have yet to convince any of my riding partners to throw one over the back of the bike so we can have a BBQ later. People are so picky sheeesh.

Sounds like I need to go on rides with you!

oky jim (author)LeslieGeee2017-11-14

Do they wave back?

cecilsaxon (author)oky jim2017-11-14

No, but it is still a very mooving experience.

burzurk (author)cecilsaxon2017-11-14 just did that...sigh

fzbw9br (author)LeslieGeee2017-11-14

you should stop and ask them how they are doing.

Bovine need to be shown some appreciation and friendship.

So true!

ABitMadInTheHead (author)2017-11-14

Awesome idea! I love it and the optional (but really mandatory) cat step.

MichalA (author)ABitMadInTheHead2017-11-16

Will work with a dog ? :)

JosephP183 (author)MichalA2017-11-17

Yes, but you have to watch them carefully, as Dogs sometimes forget to cinch up the straps on the respirator. Also they try to blast squirrles.

good question! Never tried!

it's very important! Lol

It is a very Important step! There is always a possibility of failure if not following steps to a tee!

Just helping the world to succeed! Lol

B2Pi (author)2017-11-17

My cat did not appreciate me trying to cut her neck. Can you explain that step?

Wingloader (author)2017-11-16

This is the best Instructable I have ever seen. I too would LOVE to have a sandblaster for small jobs. OMG this is genius!!! So is step 2!!!!! Get Crap...AWESOME. I love that you are not trying to sound like you are writing a textbook.

I am making one of these TODAY.

I want to be your friend.

not a fan of text books. More of a maker and do-er lol

Cozmic Cultivator (author)2017-11-16

This is one of the coolest instructables I have seen. I just checked with our local Harbor Freight for the 4-piece Air Gun set to make sure it is in stock (It is!) and will be building this project asap. I plan on using it to clean up my finds from going rockhounding. It will get into the crevices (I noticed that you are using walnut shell thru the gun, which is perfect for cleaning rocks.). Good job on this instructable.

jump on it and get blasting! :)

Geoffrey Wheeler (author)2017-11-14

What is PPE? What type of sand did you use? What size?

I suggest you edit your tutorial to clarify top/bottom of tube and a caution on over pressurization as well as incorporating any salient information from these comments. It takes a long time to go through the comments. Nice idea. I'll try making one.

Already did after going through comments at lunch. And using 20/40 crushed walnut. Also PPE Personal Protective Equipment... ie respirator, gloves, face shield etc...

davel (author)Geoffrey Wheeler2017-11-16

"PPE" = Personal Protective Equipment.

the modder (author)2017-11-14

cool dude is there anything else u can use it for

fzbw9br (author)the modder2017-11-14

fill your bottle with #12 lead shot and go after mice in the garage

OnAngelsBreath (author)fzbw9br2017-11-16

Love it!!!

the modder (author)fzbw9br2017-11-15

yeah that`s a good idea what happens if u don`t have a garage


I just used it to sand wood

the modder (author)2017-11-15

also can u use fine sand instead of 20/40 crushed walnuts

You can just remember silica in the lungs = death so wear a respirator! I use a P-100 fitted tight to my face even for walnut! But it is sugested to use non silica media!

JamesM140 (author)2017-11-15

Awesome possum, WP! I have a small project I wanted to do and you just salved the sanding for me! Gonna jump right on this, since I already have walnut grit for my brass tumbling! Thanks again!

Glad I could help!

the modder (author)2017-11-15

i`ve also made one

signupaki (author)2017-11-15

FYI if you use "metal oxide" as a blast media, avoid using it against aluminum or soft steel as it'll make a 'burn' mark more so than polish as it etches the metal depending on the pressure. Where I work we use glass media for sensitive material (lab equipment) and do use aluminum oxide but only for harder steel. Use lower pressure if you want to polish any softer metal either way. This is a great idea either way!

joen (author)2017-11-13

What can you use for sandblasting media?

Withered Perception (author)joen2017-11-13

The Preferred media is Crushed walnut .shell

Just an FYI....make dang sure you're wearing a filter mask. And one of the canister type. Not a paper one.

If your local Home Depot doesn't carry them go online and you can order them.

There is a better one. Try glass beads. You can get them at Home Depot. Not as abrasive as sand . used them in Naval Aviation corrosion control on aircraft aluminum

Sweet! Gonna have to look for them!

About This Instructable




Bio: Instagram: withered_perception Photographer and Aerial Photographer. Proudly Collaborating With HISTORY COLORADO.
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