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Old 08-21-2002, 09:23 PM   #31
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Quote:
Originally posted by ROBORAT
oh, and please pardon my ignorance. what is simple green and where can you get that? sorry for the stupid question.
Simple Green is a Envriomentaly friendly cleaner / degreaser. It's availible at any walmart, k-mart, ect. It's also well known to be good as a tire cleaner, fyi.

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Old 08-22-2002, 04:12 AM   #32
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Thanks John for all the info!

One quick question, how long does those 9 V batteries last??

Also, do you use a rubber container for the simple green? Thanks
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Old 08-22-2002, 04:30 AM   #33
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Originally posted by ROBORAT
John: ive alwasy wanted to learn how to anodize! wow! it sounds simple. but im not clear about how to set-up the positive wire with that clip you meantioned. cant picture it in my head. is the process the same for aluminum screws? and how do you get non conventional colors like red, orange, green?another thing is if lets say a screw is already anodized blue, can i re-anodize it to change it to another color?

oh, and please pardon my ignorance. what is simple green and where can you get that? sorry for the stupid question.
i have the january 02 issue of xtreme r/c cars and they have a
2-page article on how to anodize titanium. you can text me your email address and ill send them to you. on your other question, i think i saw simple green being sold in our local ace or true value hardware stores.
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Old 08-22-2002, 07:59 AM   #34
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Simple Green is a houshold cleaner degreaser. I got a spray bottle at the hardware store. Some grocery stores might carry it. Coca Cola , should also work.

The clip is a spring loaded alligator clip like battery chargers come with that is attached to the wire. You just clip it onto the titanium and lower the metal by hand into the solution.

The color is permanent and irreversible. An oxide layer grows inward from the surface of the part as you anodize. The surface becomes non-conductive after the process is complete so no further anodizing can be done. Only way to remove the color is to polish away the anodized layer which is quite hard.

Other colors can be incorporated in the anodized layer with a dye process. The freshly anodized wet part is soaked in Ritz dye that is used to dye clothes immediately after.
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Old 08-22-2002, 08:01 AM   #35
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Don't know how long the 9 V batteries last, but it should be quite a while for this process as you are only using them for 10 seconds for each part.
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Old 08-22-2002, 08:03 AM   #36
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You should be able to anodize aluminum with the same process. The colors will not be the same as for titanium for each voltage as the layer is aluminum oxide now and may form at a different rate and thickness. I don't have a list of colors for the aluminum.

Another Web site on screws. www.tiscruz.com. Apparently this is also a lunsford company. Web site seems to be nonresponsive at the moment

Last edited by John Stranahan; 08-22-2002 at 08:23 AM.
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Old 08-22-2002, 08:41 PM   #37
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thanks John and marvi!

marvi sent me via e-mail scanned files of the article which describes the process. for the rest who might be interested, gimme your e-mail adds and i can forward the files to you. same process John described but with visuals.

John: the material marvi sent said the process wont work for aluminum. is that true? i was hoping it would coz im actually interested in anodizing my alum screws.
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Last edited by ROBORAT; 08-22-2002 at 08:43 PM.
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Old 08-22-2002, 11:00 PM   #38
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Here is a web site that describes anodizing aluminum. It is basically the same process. This fellow uses dilute sulfuric acid which he buys at the auto parts store and dilutes it with water. I think Coca Cola soft drink, has a high probabability of working as it is fairly high in acid content.

http://www.focuser.com/atm/anodize/anodize.html
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Old 08-23-2002, 02:22 AM   #39
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ROBORAT ... i am interested .. plz faword it to me ....
my e-mail add is [email protected]

thank U ...
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Old 08-23-2002, 02:24 AM   #40
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btw how do i know if my screws are aluminium / titanium / steel ???

and how do i know if what solution gives waht colour and at what volt ??
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Old 08-23-2002, 07:19 AM   #41
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It's a bit hard to tell titanium screws or ballstuds from stainless steel ones. Neither are magnetic, both are shiny. The titanium ballstud that I have cost $11.00 each if I remember correctly. The stainless steel will not anodize (oxidize), the titanium will. Colors for titanium are posted above.

Steel screws will stick to the motor can magnets.

A non anodized aluminum screw is more dull looking than the titanium or steel and feels very light when you pick it up.

Roborat-you could send me a copy of the article and I'll take a look at what it says about aluminum. It could be that it just needs an acid medium to anodize properly.

Last edited by John Stranahan; 08-23-2002 at 08:37 AM.
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Old 08-23-2002, 10:40 PM   #42
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hm ....... so theres just no way to tell i guess???
ouch .. so what kind of screws i have ????

they r painted in black and the black thing will come off a bit once u screw in and remove the screw .... its light yes ... feels like u r carying nothing on ur hand ...

say if u have 5 in a bunch on ur hand ... it feels like a weight of a normal allen key ( 'L' shapped) medium size ( normally used to hold motors in place ... )
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Old 08-23-2002, 10:46 PM   #43
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imataquito-I assume you tested them with a magnet. If they did not stick they are probably Aluminum. If they stick they are steel. All of my black screws are steel.
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Old 08-24-2002, 08:40 AM   #44
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yep they r aluminium screws..

no sticking
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Old 08-24-2002, 11:37 PM   #45
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Put a green machine arm in a mvp can i hear it's fast
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