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Invisibleagmotes165
That Guy
Male


Registered: 08/12/08
Posts: 1,552
Loc: Southeastern U.S.
A homemade grinder mod for my girlfriend's christmas present * 5
    #504959 - 12/12/10 12:23 PM (5 years, 11 months ago)

***WARNING: THIS TEK ONLY WORKS ON ALUMINUM! ANY OTHER METALS CAN BE ETCHED BUT WILL NEED A DIFFERENT MIXTURE OF CHEMICALS, PLEASE ASK OR SEND A :pm: IF YOU HAVE ANY QUESTIONS ABOUT HOW TO ETCH OTHER METALS :grin:***

So I bought my gf a grinder for Christmas/Hanukkah, and decided that although it was a nice 4 piece grinder...it needed something more. So i decided to personalize it by etching an image into the polished aluminum top piece.

this is the grinder, pre-etching


and here are the materials needed to do this:

-Muriatic acid (diluted HCl for cleaning brick)
-Hydrogen Peroxide (standard 3% from walmart)
-Colloidal Silica (i got mine from west marine...a boating store, its used as filler material that is added to marine expoxy)
-Acetone for prepping metal surfaces (ended up not needing it...but if its a well used grinder you may want to wipe it down prior to starting)
-self-adhesive vinyl shelving liner
-and last but not least...a grinder to modify ^_^

I found an image online, and the vinyl was thin enough so that you can resize the image to whatever size you want and then just do a light trace on the paper side of the vinyl. Once you have ur design down...use a razor blade to very carefully cut out the design. This can be tricky and you may have to spend a little time practicing...if you just drag the blade it will sometimes catch the paper and pull it off the vinyl.


Carefully arrange the pieces of the vinyl on the top of the grinder as seen in the pic below...the vinyl pieces go where you dont want etching...and the open spots where you can still see metal will be the parts that are etched.


next is to make the etching paste...paste is much easier to work with and much safer since you dont have to worry about splashes with acid. Simply add 1 volume of muriatic acid to 2 volumes of hydrogen peroxide, stirring the whole time as the mixture will heat up as you add the acid to the peroxide, add the acid slowly to avoid boilover.

***WARNING!!! NEVER ADD HYDROGEN PEROXIDE OR WATER TO ACID, ALWAYS ADD THE ACID TO THE WATER OR HYDROGEN PEROXIDE, IF YOU FAIL TO HEED MY WARNING YOU COULD END UP WITH A BEAKER OF BOILING AND SPLASHING ACID SOLUTION ALL OVER YOU AND EVERYTHING AROUND YOU!!!***

next you mix your colloidal silica into the acid solution until you get a paste a little thinner than toothpaste...but again its whatever you feel most comfortable working with...if you get the mixture too thick then it will hold bubbles that are generated on the surface of the aluminum and ur etching will look uneven and spotty...so just make sure you dont mix it much thicker than toothpaste.


next you wanna cut a square vinyl that is bigger than ur grinder and affix it to something that is larger than the grinder


on this vinyl application piece you should spread out a thick layer of the etching paste in a circle that is as big or slightly bigger than the grinder that you have


When you are ready and your vinyl stencil is on the grinder and ready to go, just lightly press the stencil side of the grinder into the paste and let it sit for 1-3 minutes...you could go longer but i didnt need to. Make sure that every now and again during etching you very gently press on the grinder top to push out any hydrogen gas bubbles that are forming where the etching is taking place...this allows the etching to proceed at an even pace all over the design.


When the 1-3 minutes is up...simply pull straight up on the grinder top to remove the grinder without disturbing the vinyl stencil...and rinse for a minute or so under a full open faucet to rinse all etching paste off...then peel off your stencil and wash the etched area with dish soap to remove any oxidized aluminum and to ensure that any etching paste or residual acid is gone, dry it off and enjoy your new personalized grinder!!!:cool::thumbup:


I actually got creative and decided to challenge myself with a super tiny design to test out how accurate this etching process is...with smaller designs its best to just plop a dollop of etching paste onto the stenciled grinder surface and gently tap the paste throughout the 1-3 minutes to make sure that bubbles that form dont stay on the surface of the aluminum...make sure to use something that will not be affected by acid, i used a glass stirring rod for all of my dealings with the etching paste. Anyway...this is the final design


So there you have it...a way to personalize your aluminum grinder if you so desire. Please feel free to comment or ask questions if i have left anything out, if not have a happy holiday, whichever holiday that may be, and if you dont celebrate a holiday this time of the year, well then peace and love and bud to you and all who inhabit this Earth :rastamon:

agmotes165 :cool::thumbup:


--------------------
“The Universe is under no obligation to make sense to you” -NDT


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OfflineDungenessDank
Lord of the Flies


Registered: 05/06/08
Posts: 9,372
Loc: PNW
Last seen: 3 years, 6 months
Re: A homemade grinder mod for my girlfriend's christmas present [Re: agmotes165]
    #504960 - 12/12/10 12:25 PM (5 years, 11 months ago)

That's awesome man.


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OfflineFar Stox
Higher Education


Registered: 09/19/10
Posts: 470
Loc: Flag
Last seen: 4 years, 5 months
Re: A homemade grinder mod for my girlfriend's christmas present [Re: DungenessDank]
    #504965 - 12/12/10 12:53 PM (5 years, 11 months ago)

Quote:

DungenessDank said:
That's awesome man.




--------------------
"When I awaken,
The first thing on my mind,
A little bit of cornflakes,
And a blunt that's all mine."-PUTS


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Invisible13eetleJuice
The ghost with the most
Male


Registered: 04/20/08
Posts: 368
Loc: 6' under fertalizing bud
Re: A homemade grinder mod for my girlfriend's christmas present [Re: agmotes165]
    #504969 - 12/12/10 01:05 PM (5 years, 11 months ago)

Wow. That's great!


--------------------


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OfflineFRACTALife
Rust Fuckin' Cohle
Male User Gallery


Folding@home Statistics
Registered: 03/20/10
Posts: 6,835
Loc: Carcosa Flag
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Re: A homemade grinder mod for my girlfriend's christmas present [Re: Far Stox]
    #504976 - 12/12/10 01:50 PM (5 years, 11 months ago)

Quote:

Far Stox said:
Quote:

DungenessDank said:
That's awesome man.







--------------------


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InvisibleDr. SiekadellykM
Question Everything!
Male User Gallery Arcade Champion: Plumber, Radial Snake


Folding@home Statistics
Registered: 04/20/09
Posts: 9,302
Loc: Ketamine Flag
Re: A homemade grinder mod for my girlfriend's christmas present [Re: FRACTALife]
    #504979 - 12/12/10 02:11 PM (5 years, 11 months ago)

Quote:

FRACTALife said:
Quote:

Far Stox said:
Quote:

DungenessDank said:
That's awesome man.









:thumbup:


--------------------
The Kratom Report...


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InvisibleBadfish
Fire in the Bowl!
Male


Registered: 10/26/10
Posts: 160
Re: A homemade grinder mod for my girlfriend's christmas present [Re: Dr. Siekadellyk]
    #505084 - 12/12/10 10:14 PM (5 years, 11 months ago)

Quote:

Dr. Siekadellyk said:
Quote:

FRACTALife said:
Quote:

Far Stox said:
Quote:

DungenessDank said:
That's awesome man.













--------------------


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OfflineChillWillis
old school fool


Registered: 06/14/09
Posts: 2,212
Last seen: 1 year, 2 months
Re: A homemade grinder mod for my girlfriend's christmas present [Re: agmotes165]
    #505093 - 12/12/10 10:56 PM (5 years, 11 months ago)

good stuff man!!

I loooooooooooooove teks.
this one's really informative, good pictures, and descriptive.
you da man
:hi5:


--------------------

It's not a war on drugs, it's a war on personal freedom.


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OfflineFar Stox
Higher Education


Registered: 09/19/10
Posts: 470
Loc: Flag
Last seen: 4 years, 5 months
Re: A homemade grinder mod for my girlfriend's christmas present [Re: ChillWillis]
    #505094 - 12/12/10 11:00 PM (5 years, 11 months ago)

How much money did you spend on the materials? I assume it wasn't too expensive, but I'd like an estimate regardless. :shrug:


--------------------
"When I awaken,
The first thing on my mind,
A little bit of cornflakes,
And a blunt that's all mine."-PUTS


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Invisibleagmotes165
That Guy
Male


Registered: 08/12/08
Posts: 1,552
Loc: Southeastern U.S.
Re: A homemade grinder mod for my girlfriend's christmas present [Re: Far Stox]
    #505106 - 12/12/10 11:45 PM (5 years, 11 months ago)

ok lets see...

6 or 7 dollars for the acid
4 or 5 for the two bottles of peroxide...though i needed much less than one...so probly 2 or 3 dollars
cant remember on the vinyl...i think it was about 3 dollars
the silica was 14 dollars

so the total was about 30 dollars...but i have enough materials to do this project about 10 or 20 times over...and I have several of my friends who are willing to pay me to etch designs into various objects...and I am thinking of a way to shade the etching based on several different templates and exposure times...I will probly experiment and post the results here :grin:

agmotes165 :cool::thumbup:


--------------------
“The Universe is under no obligation to make sense to you” -NDT


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OfflineFar Stox
Higher Education


Registered: 09/19/10
Posts: 470
Loc: Flag
Last seen: 4 years, 5 months
Re: A homemade grinder mod for my girlfriend's christmas present [Re: agmotes165]
    #505122 - 12/13/10 12:30 AM (5 years, 11 months ago)

Not too bad given that you have that much leftover. Sounds like you have a nice new hobby to entertain yourself with. I'd love to see some more of the work you manage to do. :awesomenod:


--------------------
"When I awaken,
The first thing on my mind,
A little bit of cornflakes,
And a blunt that's all mine."-PUTS


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Invisibledrawde
 Arcade Champion: Balloon Bomber

Registered: 11/15/09
Posts: 4,780
Re: A homemade grinder mod for my girlfriend's christmas present [Re: agmotes165]
    #505175 - 12/13/10 10:10 AM (5 years, 11 months ago)

Thats seriously bad ass. Somebody is getting laid christmas day. :borat:


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Invisibleagmotes165
That Guy
Male


Registered: 08/12/08
Posts: 1,552
Loc: Southeastern U.S.
Re: A homemade grinder mod for my girlfriend's christmas present [Re: drawde]
    #505258 - 12/13/10 02:10 PM (5 years, 11 months ago)

:awecid::bananabang::ass2mouth::humpme:


--------------------
“The Universe is under no obligation to make sense to you” -NDT


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Invisibleagmotes165
That Guy
Male


Registered: 08/12/08
Posts: 1,552
Loc: Southeastern U.S.
Re: A homemade grinder mod for my girlfriend's christmas present [Re: agmotes165]
    #505925 - 12/16/10 09:56 AM (5 years, 11 months ago)

Well I gave her the grinder a couple of days ago and she loved it...then she dumped me about 30 minutes ago bc she's a bipolar bitch...

anyway, hope this tek helps someone out...if not then it was fun learning how to do it :tongue:

peace,
agmotes165


--------------------
“The Universe is under no obligation to make sense to you” -NDT


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Offlinevolcomstoner
Just one more xanax
 User Gallery


Registered: 03/30/09
Posts: 4,912
Loc: Gaybec
Last seen: 1 month, 10 days
Re: A homemade grinder mod for my girlfriend's christmas present [Re: agmotes165]
    #505929 - 12/16/10 10:15 AM (5 years, 11 months ago)

Damn dude, what a biitch!
Oh well, this tek is fucking sweet, I know i'll use it for sure.


--------------------

Vas donc jouer dans le traffic


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OfflineRasJeph
Psycho Pete
Male


Registered: 01/14/09
Posts: 11,628
Loc: Bumfuckt Egypt
Last seen: 1 month, 20 days
Re: A homemade grinder mod for my girlfriend's christmas present [Re: agmotes165] * 1
    #505946 - 12/16/10 12:30 PM (5 years, 11 months ago)

Steal it back IMO.


--------------------
Of course it's happening inside your head.
Why should that mean it isn't real?


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Invisibleagmotes165
That Guy
Male


Registered: 08/12/08
Posts: 1,552
Loc: Southeastern U.S.
Re: A homemade grinder mod for my girlfriend's christmas present [Re: RasJeph]
    #505948 - 12/16/10 12:45 PM (5 years, 11 months ago)

Thought about it actually...but im not jewish and it would just piss me off to look at it haha


--------------------
“The Universe is under no obligation to make sense to you” -NDT


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Invisibledrawde
 Arcade Champion: Balloon Bomber

Registered: 11/15/09
Posts: 4,780
Re: A homemade grinder mod for my girlfriend's christmas present [Re: agmotes165]
    #505949 - 12/16/10 12:47 PM (5 years, 11 months ago)

Quote:

agmotes165 said:
Well I gave her the grinder a couple of days ago and she loved it...then she dumped me about 30 minutes ago bc she's a bipolar bitch...





:dudewtf:


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OfflineRasJeph
Psycho Pete
Male


Registered: 01/14/09
Posts: 11,628
Loc: Bumfuckt Egypt
Last seen: 1 month, 20 days
Re: A homemade grinder mod for my girlfriend's christmas present [Re: agmotes165] * 1
    #506038 - 12/16/10 06:50 PM (5 years, 11 months ago)

Quote:

agmotes165 said:
Thought about it actually...but im not jewish and it would just piss me off to look at it haha




Ah.

Then kill her and take all her valuables IMO.


--------------------
Of course it's happening inside your head.
Why should that mean it isn't real?


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OfflineDungenessDank
Lord of the Flies


Registered: 05/06/08
Posts: 9,372
Loc: PNW
Last seen: 3 years, 6 months
Re: A homemade grinder mod for my girlfriend's christmas present [Re: agmotes165]
    #506069 - 12/16/10 09:27 PM (5 years, 11 months ago)

Quote:

agmotes165 said:
Thought about it actually...but im not jewish and it would just piss me off to look at it haha




:lol:


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