The Shop > Finishing

Tumbler Trials & Tribulations

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1hand:

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Just the basics...

It looks like you are using a Nikon coolpix S220.
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How in the...............Man your good. I'm going to town for a movie with the fam, I'll look for a cheapy tri pod.

Thanks I'll try that out.


Matt

foozer:
Yours can focus down to 4 inches as says the manual

Macro mode is used for taking pictures of objects as close as 10 cm (4 in.). Note
that the flash may be unable to light entire subject at distances of less than 60 cm
(2 ft.).

Your photo info comes up under file properties

Image Type: jpeg (The JPEG image format)
Width: 640 pixels
Height: 480 pixels
Camera Brand: NIKON
Camera Model: COOLPIX S220
Date Taken: 2011:02:04 16:06:44
Exposure Time: 1/58 sec.
ISO Speed Rating: 379
Flash Fired: Flash did not fire, auto mode.
Metering Mode: Pattern
Exposure Program: Normal program
Focal Length: 6.3 mm
Software: COOLPIX S220V1.0
Description:               

 far better than my POS at 8 inches

Macro mode, delay timer and a tri-pod will put ya in the infield.

Robert

1hand:
I thought I had it in macro mode???? the little flower is on the screen.

Will need a walk through when I get back.


Matt

snub:
I have  been experimenting with a vibratory tumbler also. I have been using a product called ' Microbrite' that I got from the Eastwood Co. Also got some liquid soap that you are supposed to use with it. This is a 'burnishing' media and is comprised of 3mm ceramic balls. From another website I was told that ceramic media needs to be 'broken in' for 12 hours or more before it is effective. I have only run a small batch for a few hours but I would say it is indeed  burnishing the aluminum. I will get some pics up when the project is complete.



I also want to try rotary tumbling. I have a barrel and some stainless steel media on its way from Rio Gande. They have a huge selection of tumblers and media. A website called "steelmedia.com" suggests that the best  combination for polishing aluminum is:

40% 2mm balls
40% 3mm balls
40% 3mm ballcones

snub:
Well, I hit 'post' instead of 'preview'   The company name is Rio Grande, not Rio Gande.

Also, I found this interesting 3 part video on You Tube. The information given seems to be in German, but my online translator isn't giving me all the info. It appears he is using 6mm balls at 72 r.p.m.

"Im Video ist eine Trommelpolieranlage, gefüllt mit 6,0 mm Edelstahlkugeln, zu sehen. Angetrieben wird die Anlage mit einem DC-Servomotor und einem Getriebe 1:71. Als Medium kommt Wasser und ein leicht saurer Polierzusatz in die Trommel.
Dauer des Vorganges ca. 6 Stunden, Drehzahl der Trommel ca. 70 U/Min. Poliert wurde hier Aluminium AlMgSi0,5, es sind vor dem Poliervorgang keinerlei Vorarbeiten mehr nötig. Ergibt schöne verrundete Kanten und eine Oberfläche wie verchromt (natürlich mit der für diese Bearbeitungmethode typischen Orangenhaut).
Es folgen noch zwei weitere Videos mit dem Ergebnis. "

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