slow motors for lumia

[flecom]

so I've been playing with some wheels and currently running some 1RPM 12v motors at 5v and even then I feel like the wheels are going too fast... anyone tried clock/timer motors? I have seen some as slow as 1 revolution per day along with several synchronous/timer motors between 1-5 revolutions per hour etc but I have no idea if their motion will be smooth enough to make a good effect?

[absolom7691]

I would also say that 1 RPM is a little too fast, especially if you're going to use two in an "egg-beater" fashion. I am using these and controlling the speed with a PWM LED dimmer. I can get them to about 0.2 RPM. http://www.ebay.com/itm/171020215599...%3AMEBIDX%3AIT So far, I love these things. Nice a quiet too. They sell slower ones (I think) but I want to be able to vary the speed based on the show I am running the lumia to. Plus, I can cue them up via DMX with the LED dimmer.

Please forgive the "errs" and "umms". I don't do well without a script!

[Laserhobbit]

I use the same motors from FleaBay and can also say I have found them really reliable and low noise. I have had one running in an install in a museum/auction house for the last 10 months, no problems at all.

Cheers

Steve

[hakzaw1]

I have in stock 1/3rpm AC motors-$6.99 plus ship- the source of these is currently out of stock-- (Surplus Shed)
I have lots of Glass- 'torture tubes' from VERY tiny to about 1X3 inch and some in between and 5 styles of flat textured glass & can cut round pieces to your spec.--PM me.

[Stuka]

I would also say that 1 RPM is a little too fast, especially if you're going to use two in an "egg-beater" fashion. I am using these and controlling the speed with a PWM LED dimmer. I can get them to about 0.2 RPM. http://www.ebay.com/itm/171020215599...%3AMEBIDX%3AIT So far, I love these things. Nice a quiet too. They sell slower ones (I think) but I want to be able to vary the speed based on the show I am running the lumia to. Plus, I can cue them up via DMX with the LED dimmer.
...

Which PWM LED dimmer board are you using?
Northlight Systems, by chance?

[swamidog]

the speed and control is awesome. it's too bad the kit is so giant.

I would also say that 1 RPM is a little too fast, especially if you're going to use two in an "egg-beater" fashion. I am using these and controlling the speed with a PWM LED dimmer. I can get them to about 0.2 RPM. http://www.ebay.com/itm/171020215599...%3AMEBIDX%3AIT So far, I love these things. Nice a quiet too. They sell slower ones (I think) but I want to be able to vary the speed based on the show I am running the lumia to. Plus, I can cue them up via DMX with the LED dimmer.

Please forgive the "errs" and "umms". I don't do well without a script!

[absolom7691]

Which PWM LED dimmer board are you using?
Northlight Systems, by chance?

Not sure whose board this is. I picked it up on eBay a few years ago for $25 from a seller in Russia. I had completely different plans for it but now it is for controlling my lumia motors. The solder mask on the side says SLPro V2.2.

[hakzaw1]

Those look really neat--do you see much advantage in being able to reverse direction?? AC means not portable but I can get 4 of mine for that price so...
quite- .. they do get quite warm but left one running for 4 days with no problems. Can you post pics of how you attach the shaft to the glass please.

The shaft looks like standard size for 'knobs'.... like a radio etc---- round w/ a flat part. Perfect for use of set screw??

[absolom7691]

Those look really neat--do you see much advantage in being able to reverse direction?? AC means not portable but I can get 4 of mine for that price so...
quite- .. they do get quite warm but left one running for 4 days with no problems.

I do have one set up to reverse direction. The others are set for single direction. I also like having the ability to change the speed in-software (using a DMX controller). Slow, for etherial stuff and faster for higher tempo music. Those are the main reasons I went with DC.

Can you post pics of how you attach the shaft to the glass please. The shaft looks like standard size for 'knobs'.... like a radio etc---- round w/ a flat part. Perfect for use of set screw??

Yep, I am using potentiometer knobs. The shaft on these motors is slightly smaller than a pot but the knob still tightens snugly on the shaft with use of a set screw.

For this video, I used nail glue. That lasted about two days and the glass popped off. After that I sanded the glass with 20 grit sand paper to make a rough spot in the center. I also scored the top of the pot knob with 20 grit and then JB Welded the two together. For testing purposes, it took a pair of pliers and a considerable amount of force to separate the two. I am confident in this mounting solution as I am not equipped to drill glass.

I'll snap some pics when I get home from work tonight.

[hakzaw1]

I was able to mount two AC motors so that one was going in the other direction by NOT having them on the same side.

I am thinking that these *might* qualify as 'embedded or enclosed' and be classed lower like 2B instead of 3 or 4.

For sure, if you are rear projecting and no one has access to that area. Is it possible that they do not need to be varianced?

TY hk