Originally Posted by wakumann

Joe

possible you knows/ investigated this already, if not maybe it's helpful

If Volz can't deliver, these guys may have a servo alternative:

http://www.acteurope.de/html/7_5_volt-servos.html

They work for the Jet guys and fabricated for the industrial market.


Cheers
Thomas

Want torque? I use the "small one" in my 3meter...
http://www.tokyo-hobbies.com/tonegawa.html
But I would not recommend it for Joe's application...

Im going to use the PS-050. Why wouldnt you reccomend it?

Originally Posted by joe manor

Im going to use the PS-050. Why wouldnt you reccomend it?

Does not center well. But well enough for a large 3D model.

How bad are they? Im supposed to pick up 5 on monday.

Originally Posted by joe manor

How bad are they? Im supposed to pick up 5 on monday.

I have not tested many but there seems to be differences on them and also at different voltages. I fly mine with both 2cell A123 and 3cell Lipo. Ended up with 3 cell because of power and if I remember correctly better neutral. They can suddenly punch a bit around neutral... (and that would not be good in your case...)
If you use 60degrees or more and not too much throws you might be able to use them. Not sure if I would trust it on flaps if you want 90degree...
Every other gear in them are plastic-metal. Output gear is plastic.

Some guys here are building a 90% Ultimate. It will be all these servos (proven for this application).

I read that they act funny sometimes on a 3s packs. (If you need the torque you need the torque) I should be able to make them work on a 2s. If the #s hold up they should be fine. As far as flaps go, I am willing to sacrifice some travel if I can just fly my plane without having to punch out and land every few laps.

These are next.

http://www.ckdesigntech.com/l16series.html

There ya go. Interesting that the higher the power rating the faster they are too.
Specsheet says they'll sell you an R/C-ready controller too.

ian

Originally Posted by Daemon

There ya go. Interesting that the higher the power rating the faster they are too.
Specsheet says they'll sell you an R/C-ready controller too.

ian

Actually, it looks like the higher the torque the lower the speed. They are rated in inches/second. .35 inches per second is pretty slow.....too slow IMO.

Adam

This might be an option if you could get it to work with a rc receiver. Might need a special controller?

http://www.trossenrobotics.com/dynam...or.aspx?a=blog

Originally Posted by wyowindworks

Actually, it looks like the higher the torque the lower the speed. They are rated in inches/second. .35 inches per second is pretty slow.....too slow IMO.

Adam

Ah you're right. I was reading it in time per distance (like servos are
rated), rather than distance per time.

ian

Originally Posted by joe manor

I read that they act funny sometimes on a 3s packs. (If you need the torque you need the torque) I should be able to make them work on a 2s. If the #s hold up they should be fine. As far as flaps go, I am willing to sacrifice some travel if I can just fly my plane without having to punch out and land every few laps.

We discussed it a bit on teh ice today (4 of us with large models and all with Seiko servo on rudder). I was not happy with the power on 2 A123 or 2 Lipo. And as you have heard it "jitters" and sometimes give you a "punch" when on 3S Lipo. I would think 3xA123 would be the best choice and most of the jitter goes away with less voltage. For the rudder on my 3,1m I dont care about the jitter but you can see it in the knifeedge sometimes. Annoying...
I put some Seiko in todays clubvideo. Beginning you see the jitter with no load (I just keep one arm at the rudder to take out the weight of the rudder). At 1:20 you see whät propeller turbulence and shaking does to it.
http://www.workflow.as/jogrini/video...en_23nov08.wmv

Off course we fly sloooow .... Here is two days ago
http://www.workflow.as/jogrini/video...en_21nov08.wmv

Thanks for all the support guy's! It's this threads 1st birthday! A dream and a years worth of hard work.

Yay! Thank you for sharing your dream with us!!! I have so enjoyed watching and learning. Thank you Joe! I hope next time I get shipped to Cali for work it will be close to one of your flying sites. I would like to shake your hand. Keep up the great work...Here is to another year of dreams in process! Cheers!

What he said... Thanks a lot Joe for sharing your vision with everyone. I think a lot of people will agree that you have shared far more with your build and fly process than you can imagine. I have been hooked since day one of your endeavor. Thank you so much for making this public and sharing everything you have done so far. You truly are an asset to the RC groups!! I wish you the best of luck with the Dynamic and am confident that you will be setting the standard which the entire DS community will strive for. Not to take anything away from Jason or the others, but the way that you have presented this is outstanding. Thanks again!!!

--quigley

On To 400... you can do eeeeeeeeeet!!!!