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Rotating monitor - Yet another take
DaOld Man:
I think if you could find the small rollers that psychotech used, his way would probably be the best do far. (for LCDs).
But I would do it just a little differently (bet you didnt see that one coming ;D )
I would cut the wood disk that the monitor fastens too bigger.
This would allow room to mount 4 blocks on either side of the monitor. These blocks would extend out flush with teh front of the monitor.
You could then cut out a round poster board circle (the thick foam filled stuff).
You would cut out for the monitor viewing area in the center of poster board.
This poster board would be big enough to cover the gap between the round wood disk and the monitor panel of your arcade. The rest of the poster board would cover the entire monitor panel.
The blocks need to be thin enough to get very close to the edge of the monitor board of the arcade.
The round poster board would fasten to the 4 blocks with small screws.
I would then cut another piece of very thin poster board, same color as the first board.
This second board would cover the entire monitor panel too, but also extend in far enough to cover the gap between the first two boards and the screws that mount the round poster.
You would then have a clean rotating monitor, IMHO.
I have attached a crude drawing that may help explain my concept. It is not to any dimensions or scale.
The thin last piece of poster board is not shown.
javeryh:
csa3d - great info! Thanks for that post. I never even though there would be side-to-side movement but now that you've said something I can totally see it. I was planning on using a 3" lazy susan like THIS but now I'm a little unsure how it will perform. I'm hoping the smaller size will leave less room for movement other than along the bearings... I will let everyone know!
javeryh:
I just bought a 3" lazy susan bearing for $4.15 shipped. I'm hoping there isn't too much side-to-side play between the bearings and the casing. I'll report back once I get everything set up!
HERE is the link to the eBay auction I bought from - I did a "Buy It Now" and the cost was $1.15 for the lazy susan and $3.00 to ship it.
The plan is to mount this to a circular panel made out of 1/2" MDF. The tricky part will be getting it exactly centered. :cheers:
EDIT: Woo hoo! The eBay seller shipped it yesterday - that was fast! Now I'm hoping it will be here in time for the weekend so I can mess around...
psychotech:
Hello there ;)
Great stuff! Soon we're all rotating :dizzy:
Really have to appreciate the software development DaOld Man, weisshaupt & all have done on the rotation front. You guys rule for real :notworthy: :notworthy:
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After a bit of Googling I did actually found the wheel/caster/whatever I used.. actually bought mine from a car parts store, but these should be available at your local gardening/home improvement/whatever stores also..?
Anyway..
The wheel I made my bearing out of was almost identical to these: http://www.hjulex.se/index.php?id=16&type_ref_id=11&L=0 - Bought the rightmost for 3.95 EUR (something like $6), not bad? I think the Art. No. 299064 comes closest, if not identical. It's a roller bearing solution ..and it's awesome!
You might be able to see a similar roller bearing here @ http://www.hjulex.se/index.php?id=16&type_ref_id=22&L=0 or on a picture from my initial post.. like this:
or
The beauty of the roller bearing is that the bearing(s) actually go(es) through (almost all of) the mechanism and so it should be a real "strong" solution.. Fun for a lifetime ..maybe.
And, hey. Here: you can see the (almost rusty looking) spacer between the washers.. that's a part of the wheel mechanism also. So, no need for additional tinkering here either.
All the "washerwork" seen in the pictures is to make the monitor plate to "just about to" touch the small wheels for added friction. The big wheels bearings really do not need them. No slack, no sideways movement. No give.
With weisshaupt's new MaLa plug-in, I'm pretty sure the bearing would be enough!?
Mounting the wheel bearing? In my case the main housing was something like 25mm (just a hair width short of 1" ..) and so I just used a 24mm holesaw and finetuned with sandpaper.. installed with a hammer and some glue ..it's never gonna come out again. Maintenance? Maybe some grease every seven years or so, should work :)
Whatever you do, don't do it like i did it. Do it right.
L8r. psychotech
javeryh:
I have to do some yard work and then I'm going to give this a shot... The bearings have about 1/32" play but it doesn't seem like it will be a concern. Using my hands, I put some shearing pressure on both "plates" of the bearing to simulate the weight of the monitor (and then some) and I was easily able to rotate them with an equal amount of friction. I think this is going to work.
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