RE: Eletronic engine syncronizer - no joke  
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RE: Eletronic engine syncronizer - no joke - 8/24/2006 10:48:00 PM   
yl5295


 

Posts: 461
Joined: 7/29/2003
From: Raleigh, NC
Status: offline 		Freq hopping transmitter should be a different thread.

Optical upgrade will be a piece of hardware and require no software changes/updates.

I will post when I ship production software and RCS' inventory.

(in reply to MLDELARUELLE)
       Post #: 351

RE: Eletronic engine syncronizer - no joke - 8/28/2006 3:18:14 PM   
yl5295


 

Posts: 461
Joined: 7/29/2003
From: Raleigh, NC
Status: offline 		OK guys... I am releasing the product now and shipping RC Showcase's inventory today!!!

I have been wrestling with one last issue I wanted to get to the bottom of. To explain this last issue it was basically spark noise was being picked up by the sensor wires on magneto equipped gas engines. I have long heard not to use metal push rods to connect to the throttle on a gas engine. The problem is much worse than I expected when running a wire by the engine that is connected to the twinsync. The good news is that it appears even if noise gets into the TwinSync it does not get into the receiver.

So I am going to have to add a few cautions... Magnetos are worse than Electronic ignitions. Rubber spark boots are a very bad thing - Only Bosch shielded plug caps should be used. If you see RF interference after these steps you may need to shield the sensor wires with the shield grounded to radio ground. Run the sensor wires as far away from the engine and ignition system as possible.

No issues have been seen on glow. EI Gas engines are working fine. Stock Zenoah engines introduce RF noise into the sensor wires and result in erratic behavior. They can been cleaned up with a bosch plug cap.

(in reply to yl5295)
       Post #: 352

RE: Eletronic engine syncronizer - no joke - 8/28/2006 3:40:45 PM   
baerentp


 

Posts: 35
Joined: 6/23/2006
From: Frederiksberg, DENMARK
Status: offline 		Hi Bill,

That is really good news! Looking forward trying out the system in Danish airspace... making it a bit safer... I hope!

Pete

(in reply to yl5295)
       Post #: 353

RE: Eletronic engine syncronizer - no joke - 8/29/2006 3:11:34 PM   
yl5295


 

Posts: 461
Joined: 7/29/2003
From: Raleigh, NC
Status: offline 		Product has shipped!!! I will get an updated manual out this week and RCS to post it to match the software in their inventory.

Two things to note... default timing parameters will be for GAS engines. They will work fine on glow synchronization will be faster by changing the timing parameters to be a little faster.

Rubber plug boots with magnetos is a bad combination. The hall effect sensor wires can pick up the RF spark interference and result in erratic servo behavior and/or poor synchronization.

(in reply to baerentp)
       Post #: 354

RE: Eletronic engine syncronizer - no joke - 8/29/2006 5:28:40 PM   
Kmot



Posts: 7711
Joined: 6/11/2003
From: Northridge, CA, USA
Status: offline
quote:

Two things to note... default timing parameters will be for GAS engines. They will work fine on glow synchronization will be faster by changing the timing parameters to be a little faster.


Can you please clarify this? Is the unit I am going to receive from RCS set up more for gasoline ignition engines instead of methanol glow engines?

_____________________________

Ahhh......screw it!

(in reply to yl5295)
       Post #: 355

RE: Eletronic engine syncronizer - no joke - 8/29/2006 6:10:52 PM   
yl5295


 

Posts: 461
Joined: 7/29/2003
From: Raleigh, NC
Status: offline 		All of the TwinSyncs now have a programmable parameter for "response time". This basically let's you setup the device to perfectly match the throttle and servo response times of your airplane. If the "response time" is set to fast the servos will "hunt" or "oscillate" arround the "sync point" - i.e. go in and out of sync a little. If the "response time" is set too slow then the engines are just a little slower to synchronize - no other down side.

The servos are constantly moving a little to sync the engines so you have to go by sound not by watching the throttle arms if you want to change this setting.

So I set all of the units that shipped to RCS (as well as the units that were returned for software updates) to be optomized for gasoline engines. You can improve the time to sync on glow motors by speeding up the response time. The devices will still work fine for glow just that you can improve the time to sync from maybe 1-1.5 sec to ~0.5sec by changing this. The downside if I had set them for optimal glow settings is that the gas engine guys would have had bad oscillations out of the box. By setting them to the gas engine setting everyone should be able to use them out of the box without having to reprogram anything. Glow guys now have the option to improve things some by changing this setting.

To change it move the selector switch to position 4. Power up the unit. Wait until the leds stop flashing fast (3 seconds) and start flashing slowly. Write down what lights are flashing slowly after the first 3 seconds. Then look at where it is currently set to in the instructions (included below). Then mash either button until you get to the next faster setting in the table below. I marked in the table below where glow motors should be set to. Onces the desired lights are slowing flashing move the selector switch back to "0". Power cycle the device and you are ready to go.

LED5 LED3 LED4 MODE
RED YELLOW YELLOW
ON ON ON Fastest possible setting…
ON ON OFF Very fast setting good for use with Brushless ESCs
ON OFF ON *** This is best for fast glow and servos
ON OFF OFF *** This is best for standard glow and servos
OFF ON ON Factory default mode for fast responding Gas engines
OFF ON OFF
OFF OFF ON
OFF OFF OFF Slowest possible setting

Note that LED3 is closest to the button and LED 4 is closest to the selector switch.

< Message edited by yl5295 -- 8/29/2006 6:59:57 PM >

(in reply to Kmot)
       Post #: 356

RE: Eletronic engine syncronizer - no joke - 8/29/2006 6:13:23 PM   
yl5295


 

Posts: 461
Joined: 7/29/2003
From: Raleigh, NC
Status: offline 		If this is not clear drop me an email with your phone number when you get the unit and I'll call you and walk you through it.

(in reply to yl5295)
       Post #: 357

RE: Eletronic engine syncronizer - no joke - 8/30/2006 2:53:55 PM   
orcrest



Posts: 150
Joined: 1/11/2004
From: Sutherland, AUSTRALIA
Status: online 		HI

I've ordered one of these beauties for my KMP P38. Just reading through the instructions about onboard glow and had a few questions about what battery to use. I'm not real bright when it comes to working out voltages and stuff (probably why I've put off trying electrics ) so I'd appreciate it if you could give me a straight forward answer.

For each option of 1. a single battery source; and 2. a dual battery source:

What voltage battery do I need to use? (from the manual I read 1.8V and not over 2.0V)

Will I need to use a voltage regulator? (I haven't found a single cell nicad/nimh at 1.8V)

As I said, I'm not real bright about these things and I'd really like someone to just tell me what I need

Thanks

Da Orc

(in reply to yl5295)
       Post #: 358

RE: Eletronic engine syncronizer - no joke - 8/30/2006 3:04:42 PM   
MLDELARUELLE


 

Posts: 73
Joined: 4/28/2004
From: V - S - F - FRANCE, FRANCE, METROPOLITAN
Status: offline 		Hi guys,

I've just order it. But RCshowcase told me it was back ordered. I thought it was avalaible.
Just a little more time to wait ?

Thanks
ML

(in reply to orcrest)
       Post #: 359

RE: Eletronic engine syncronizer - no joke - 8/30/2006 3:20:57 PM   
William Robison



Posts: 20269
Joined: 11/10/2002
From: Mary Esther, Florida, FL, USA
Status: offline 		Orc:

Just use ordinary 1.2v NiCads for the glow heat, whether you use a single battery or a pair is up to you, the greater battery capacity the longer you can go between charges.

MLDELARUELLE:

BillW shipped them to RCS a few days ago, should be there by now.

Bill.


_____________________________

Real Airplanes have Two Engines
AMA 25139 - More than 40 years.

(in reply to MLDELARUELLE)
       Post #: 360

RE: Eletronic engine syncronizer - no joke - 8/30/2006 3:31:21 PM   
orcrest



Posts: 150
Joined: 1/11/2004
From: Sutherland, AUSTRALIA
Status: online 		Ah Bill

Thankyou, simple and direct as always!

I was hoping 1.2V would be OK like on my SJPROPO glow driver but I wanted to be sure.

Cheers

Da Orc

(in reply to William Robison)
       Post #: 361

RE: Eletronic engine syncronizer - no joke - 8/31/2006 3:15:50 PM   
orcrest



Posts: 150
Joined: 1/11/2004
From: Sutherland, AUSTRALIA
Status: online 		Just got an email from Stacey at Rcshowcase and she says she still hasn't seen the units yet. Hopefully it won't be too long!

Anyone know how many units were sent? I hope there's enough to go round.

Cheers

Da Orc

(in reply to orcrest)
       Post #: 362

RE: Eletronic engine syncronizer - no joke - 8/31/2006 3:26:58 PM   
yl5295


 

Posts: 461
Joined: 7/29/2003
From: Raleigh, NC
Status: offline 		I just tracked the package and it was delievered. They probably have to log them into inventory etc.. So should be anytime now.

As of a couple of weeks ago, the number of back orders was much less than the number of units that they received.

(in reply to orcrest)
       Post #: 363

RE: Eletronic engine syncronizer - no joke - 9/1/2006 12:10:53 AM   
orcrest



Posts: 150
Joined: 1/11/2004
From: Sutherland, AUSTRALIA
Status: online 		HURRAY!!!!!!

Stacey just emailed me to advise they have the units and are shipping them out Friday!!!! Can't wait.


Cheers All

Da Orc

(in reply to yl5295)
       Post #: 364

RE: Eletronic engine syncronizer - no joke - 9/1/2006 3:06:55 AM   
Kmot



Posts: 7711
Joined: 6/11/2003
From: Northridge, CA, USA
Status: offline 		I received my shipping confirmation at 9:17 AM PDT this morning.

_____________________________

Ahhh......screw it!

(in reply to orcrest)
       Post #: 365

RE: Eletronic engine syncronizer - no joke - 9/1/2006 5:32:25 PM   
Jim Reeves


 

Posts: 34
Joined: 5/26/2006
From: Truro, UNITED KINGDOM
Status: offline 		RCS Showcase has e mailed to say that the unit has been dispatched to the UK so will advise later when I get it!

Thanks for all your effort Bill, I'm sure that flyin a twin with one of these babys is gonna be a whole lot easier on the mind!

Jim

_____________________________

Always put off today what you can do tomorrow....

(in reply to Kmot)