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View Full Version : Question 12V Speed Control forScale, use Airplane ESC?


hpiguy
Mar 21, 2008, 10:21 PM
So, I have the battery for my MyrtleCorey Paddle Wheeler, it's a standard 12V 4.5AH SLA.

And I have the motor, the Dumas #2029 Paddle Wheel motor.

Where can I get a cheap12V speed control. I see the Dumas one but it's so outdated being resistor based, needing a receiver pack and a servo for throttle seems like a lotof unneeded work and it's just hokey looking.

Anything OK out there that's all electronic and BEC?

I have thought of an airplane ESC since I only really need forward on this boat. Something like this http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXKSY4&P=ML . I doubt that 12V motor will pull 25A continous at a slow scale paddlewheel pace.

What do you guys think? What ideas do you have for a 12V control? Anything with reverse out there?

Anything that says it can handle 10 cells for land cars will work too of course.

patmat2350
Mar 21, 2008, 10:30 PM
Why only forward? Never expect to get into a corner?

I'm partial to Mtronik's Marine Viper line for 12v applications.
http://www.hobbypeople.net/gallery/159230.asp

hpiguy
Mar 21, 2008, 10:46 PM
Well there we go, that was easy. Never checked Hobby People.

For scale, yes I suppose reverse is necessary, especially for braking it if need be or backing away from the dock.

I had found the Tekin Rebel,I have the older ones and the new ones says forward and reverse with 10 cells capable but it's 90 bucks.

That $50 for the Mtroniks is much nicer price wise.

Thanks.

hpiguy
Mar 21, 2008, 11:19 PM
Holy cow a guy on RCU showed me and even cheaper one capable of higher amps so I can use it elsewhere in higher draw boats I have:

http://www.horizonhobby.com/Products/Default.aspx?ProdId=PRB2314

patmat2350
Mar 22, 2008, 08:51 AM
The Proboat is known to have little low-end control... may not be an issue for you and your paddles?

hpiguy
Mar 22, 2008, 12:12 PM
We'll have to see. I think there is somuch gear reduction that it maynot be noticed.

I'll test it when I get it to see if it will be used on this boat or stuck in something else.

I have quite a few other things this can go in if need be.

Ghost 2501
Mar 22, 2008, 01:39 PM
Pat My proboat runs on 9.6v and no issues with it in terms of reliability, though it does seem to have a high starting output,

785boats
Mar 22, 2008, 04:13 PM
Hi hipguy.
I use two of those ESCs in the blockade runner I've just built.
What patmat & Ghost have said about the high starting point is true, & annoying in some scale boats. But what you said is also true. With so much gear reduction the paddles can be made to turn as slow as you want.
Best regards.
Paul.

fleetmaster
Mar 23, 2008, 03:12 AM
http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6468
This one??

fleetmaster
Mar 23, 2008, 03:15 AM
No reverse though-sorry.

timo2
Mar 23, 2008, 04:50 AM
Hi

A very good supply of electrical bits are www.action-electronics.co.uk the

P80 ( Condor 20/2 ) well tried and tested unit or the new P93 ( HPMC ) :cool: looks

very good. Plus the Boss ( Dave M ) gives you full backup on advice and parts

Timo2 :)

hpiguy
Mar 23, 2008, 10:50 AM
He does have some nice stuff.

What DOES interest me now that I ordered the ProBoat controller fromelsewhere is his 12V smoke generator for $43 which he desrcibes as making a LOT of smoke and his throttle controlled steam engine sound module and steam whistle.

Has anyone here tried his smoke generators or sound modules?

Great link.

hpiguy
Mar 23, 2008, 10:51 AM
http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6468
This one??

I have saved that link for when they get back in stock. I have a few other projects this inexpensive motor scontrollar can go into, like automation features that need motor control. That price is unreal.

785boats
Mar 23, 2008, 05:37 PM
I've just ordered two of these for a couple of my boats so I don't have to keep swapping ESCs around so much. They sound Good. It'll be a while before I can test them & let you know if they are. But 110amps?
No water cooling required even for hard running, I would hope.
http://www.r2hobbies.com/proddetail.php?prod=rcps61604

Cheers.
Paul.

hpiguy
Mar 23, 2008, 06:00 PM
That looks pretty nice. I'd defintely love to hear how well it works.

Maybe 110 amps is momentary. Like 1 second, so they list it to look good?

785boats
Mar 24, 2008, 01:31 PM
That's what I thought at first, but I run an 80amp brushless ESC of theirs & the ratings seem correct. I've got nothing in my floatilla of 20 odd boats that will draw anything near 110amps on a brushed motor. My main hope is that it will drive the three speed 600s in my Wallypower 118' model. I'll post some sort of test results somewhere for different installations. It does seem like a lot of ESC for the price.
Cheers.
Paul.

fleetmaster
Mar 25, 2008, 09:11 AM
My mate's 785 melted at a constant load of around 35 amps (due to a major radio glitch),it stalled and blew the ESC.It hit 120 amps before the Castle Griffin went up in smoke.

AndyKunz
Mar 25, 2008, 12:21 PM
If you only need fwd then you could use an RC-Hydros.com ESC.

Andy