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Mikado Modellhubschrauber . GrandRC . CanoMod

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e-E-Sky Honey Bee- Lama- Belt CP- E-Smart > New Protos stuff ... I mean ... BIG SCARY HELI!
 
 
TJinGuy
Elite Veteran
Location: Socorro, NM - USA

GY240 will work fine with a digital servo, it just won't take advantage of the digital speed. Remember that digital servos will work in both analog and digital modes.

- Chris

Variety+spice+life+supporting_paper_towel_industry=
King2+Rex450+Protos+Concept30
09-14-2008 03:50 PM
 
 
tryan02
rrProfessor
Location: Canton, Missouri

Cool I always just went by the manual It doesnt actually say it wont work It just says It performs best with non-digital servos?

Whatever that means?

Thats like putting a light on your receiver to tell you when its not working.

Brought to you by the fine folks at spektrum.

Canton MO backyard flying club
Club President
Team No funds left.
09-14-2008 04:30 PM
HOMEPAGE  
 
 
toolman18
Key Veteran
Location: Portland, Texas

My buddy used to run his 30 sized nitros with a digital servo and a 240. He never had a problem and it always held the tail fine. It would be worth a try.

We need video proof around here.
09-14-2008 04:34 PM
 
 
Gregor99
Elite Veteran
Location: Western Wa

Dgital servos are more about output to the motor than input from the Rx or gyro. A digital servo will "drive" the motor in digital mode regardless of the input. A digital setting on the Rx or gyro refers to the frame rate of the communication between Rx/Gyro and the servo.

Very few Rx have the ability to drive the servos at a higher frame rate. Yet we still put them on our swash and see the benifits. Currently Spektrum has, I believe, only one Rx that will output at the higher frame rate and its designed for cars. I think Futaba has a few, but I'm not sure of which models.

Canton MO backyard flying club
West Coast Chapter
09-14-2008 04:51 PM
 
 
TJinGuy
Elite Veteran
Location: Socorro, NM - USA

Well the tail is still slowly drifting left (nose-right) so it looks like I am going to move the GY240 over. I will give the gyro a try on the 450. Not only am I more comfortable with it but I know it flies well and have lots of time on it. On the Protos I need the tail to hold perfectly so I can work on the test of the heli. It seems like when I don't trust the tail, I can't fly worth crap. I feel like I just started back in Feb. Anyhow I ran my last pack for 7min. Motor was HOT, 165F a minute after by my IR temp gun, but I understand the 500 motors run really hot and the Protos motor is maybe the worst. I am fine with that as long as it keeps working and I haven't read about any problems because of it, so I will keep on keepin on. The pair of 2200 outrages were at 115F or about the same as they would be coming off my Rex.

- Chris

Variety+spice+life+supporting_paper_towel_industry=
King2+Rex450+Protos+Concept30
09-14-2008 07:15 PM
 
 
MMike
Elite Veteran
Location: Holland,Mi-USA

TJ

Just FYI, in case it helps:

[quote]The pair of 2200 outrages were at 115F or about the same as they would be coming off my Rex

That's about what my batts AND motor are on my 500 after 7 minutes.
09-14-2008 07:27 PM
HOMEPAGE  
 
 
MMike
Elite Veteran
Location: Holland,Mi-USA

[quote]tail is still slowly drifting left (nose-right)

Not something a "trim tweak" would remedy?

Sorry, had to ask.
09-14-2008 07:28 PM
HOMEPAGE  
 
 
Gregor99
Elite Veteran
Location: Western Wa

At the risk of opening two can's of worms, I'll mention that the T500 guys have found the static from the boom not only affects the Spetrum Rx's but it also affects the gyros when mounted on the boom block.

One of the T500 owners also has a Protos and had found it generates a fair out of static. In this vid you can see it causing the cyclic servos to twitch

http://www.youtube.com/watch?v=O2rrN2OMv1U



Here are some pics of his Protos with the boom grounded to the frame.


http://www.helifreak.com/showpost.p...2&postcount=560

Canton MO backyard flying club
West Coast Chapter
09-14-2008 08:22 PM
 
 
MMike
Elite Veteran
Location: Holland,Mi-USA

Greg

Good stuff. I have my boom grounded on my 500.
09-14-2008 08:29 PM
HOMEPAGE  
 
 
tryan02
rrProfessor
Location: Canton, Missouri

We do those same kind of tests at work we just turn the lights down and watch the show.

36,000V at 1/2 amp to drive a vacuum tube cant have any sharp corners.

BTW not to scare you TJ but the guy I just bought my raptor from has been setting up a protos also he is having way more trouble than you. He told me there is soon to be a little update kit for the protos like the tailfin you mentioned and some other things. The main shaft has a problem and will vibrate causing blades to go out of track then come back in. This vibration was effecting his gyro the tail would kick one way or the other when the vibes came but was smooth as silk and locked on when it came back in.

May want to do some research on this update kit.

Canton MO backyard flying club
Club President
Team No funds left.
09-14-2008 08:59 PM
HOMEPAGE  
 
 
TJinGuy
Elite Veteran
Location: Socorro, NM - USA

I have been reading in the Protos forum for a while now and up to date on all the short comings of the Protos. Seems the tracking issue effects like 1 in 10 or so. I setup my Protos on the bench and the blades tracked perfect on the first flight. They have not changed. Depending on how it does in the near future, I will look into the upgrade kit. The kit also come with some tail parts. Turns out the Protos has such a large throw on the tail blades that it can break the pulley with all that force. They have some warnings on their site about it.

Well the GY240 is on the Protos and I will be testing it very soon.

---
On a side note, I did something amazingly stupid and pretty much burned $25 in the process. I blame Spektrum but really it is my fault. See my new and freaking awesome TX LiPo has both Futaba and Skektum connectors on it. I have put about 6 hours on it setting up the Protos and test flying it and finally the voltage dropped to 11.9V. So I thought I would take advantage of my radio's built in clock to see how long I could go between charges. I yanked out the battery and once again saw both the leads (Futaba and Spektrum) and thought it was time to fix that. So I grabbed some snips and cut them off. Well stupid me placed both wires between the jaws and dead shorted them when I cut them. It sparked a little but that didn't worry me as much as the fact that it stopped sparking. Hell it didn't even melt anything. So I grabbed the multimeter and sure enough one of the cells was slowly dropping in voltage. Yup I killed a cell. DAMMIT!!! And I have fallen in love with the thing too Now I gotta order another one. What a waste.

- Chris

Variety+spice+life+supporting_paper_towel_industry=
King2+Rex450+Protos+Concept30
09-14-2008 09:16 PM
 
 
Gregor99
Elite Veteran
Location: Western Wa

Sorry to hear that Chris. If you makes you feel any better, you are not alone. I shorted the discharge wires on one of my packs when I was attaching the Dean's connector. Stupid me, I normally do one at a time, but for some reason forgot too. Luckily the pack was undamaged and has 65 flights on it without issues.

Canton MO backyard flying club
West Coast Chapter
09-14-2008 09:43 PM
 
 
MMike
Elite Veteran
Location: Holland,Mi-USA

BTW

I had to Double tape under my gyro on my 500 to keep it from "kicking".
09-14-2008 10:01 PM
HOMEPAGE  
 
 
tryan02
rrProfessor
Location: Canton, Missouri

Well thats a testament to lipo safety huh? We not long ago had a conversation of charging little king packs in a firesafe and you just proved a dead short doesn't cause a fire.

Sorry to hear that though what one were you using I was considering one for the 6EX.

Glad to hear you were on top of the protos thing everybody makes mistakes now a company that works to fix them thats golden.

Canton MO backyard flying club
Club President
Team No funds left.
09-14-2008 10:26 PM
HOMEPAGE  
 
 
TJinGuy
Elite Veteran
Location: Socorro, NM - USA

It was the Mega Power TX pack. Most of them are like $50 but the MP is only $25.90. It fits in there great and lasts for ever! Well at least it lasts a long time and actually I needed to put a small piece of foam in my battery compartment to keep it from moving around as it is about 3/4 the size of the NiCd pack.

Well I took the pack partly apart and looked at the circuit board to find nothing wrong. I measured each cell at 3.98V and so I resoldered the balance and output leads on and still had a cell that looked bad. The Cellpro complained about cells not adding up or something. Well I took it apart again and everything is still fine. So I hooked it up the Cellpro and it is charging just fine. Cellpro says all the cells are balanced and there are no problems. I am going to be very careful with it for a while but I think it is fine.

- Chris

Variety+spice+life+supporting_paper_towel_industry=
King2+Rex450+Protos+Concept30
09-14-2008 11:42 PM
 
 
tryan02
rrProfessor
Location: Canton, Missouri

good you got lucky I may have to look into one of those. Megapowers are tough when I first got my King and megapower 1250mah I believe. I put the wrong deans plug end on it and it slapped against my skid It sparked but back then I was still using a Eflite wall charger and it charged just fine. This was the same pack I had well over 300 flights on.

Oh there is no problem with voltage difference on the pack?

My 6EX usually goes up to 10.2V on the front panel when fully charged.

Canton MO backyard flying club
Club President
Team No funds left.
09-14-2008 11:48 PM
HOMEPAGE  
 
 
TJinGuy
Elite Veteran
Location: Socorro, NM - USA

Okay the pack is toast after all. It shows 12.50V right now but when I put it in the radio, the light comes on and nothing else happens. I think is not passing any current from the 1st cell and so it is dripping down to the voltage of the other two or just under 8.4v.

Anyhow I am ordering another pack right now. I will chock this up to a learning experience and move on. Besides I need to order some proper packs for the Protos anyhow. I am going to go cheap for my first round and pick up a pair of 6s 2500 Mega Powers for $81 each. I just can't justify spending $125-$180 each on a pack right now and the MPs look pretty good. BTW I too have owned some and they were good packs, not the most constant power output but tough.

T I too was worried about the higher voltage but everyone said it worked fine, so I gave it a try and zero problems. The built-in meter only goes to 12.4V, so it stays there for a while. Other than that it seems happy as a clam

- Chris

Variety+spice+life+supporting_paper_towel_industry=
King2+Rex450+Protos+Concept30
09-15-2008 12:04 AM
 
 
tryan02
rrProfessor
Location: Canton, Missouri



Gotta be nice charging your TX in a few minutes instead of overnight.

Canton MO backyard flying club
Club President
Team No funds left.
09-15-2008 12:32 AM
HOMEPAGE  
 
 
TJinGuy
Elite Veteran
Location: Socorro, NM - USA

Ok I am still having tail issues. I put the GY240 on the tail and now the tail is like a wet noodle. It holds a general direction but is has a slow and lazy wag all the time, especially in the wind. I have tried 75% gain all the way to 100% gain with very little change. I have a few other things to try but right now I am seriously thinking of grrabbing a 401 or G770.

A note on batteries. I tried my FMA 2100s in the Protos this morning. It was 65F out and I only ran then for 5min but they were poofier than I have ever seen them before. They went back down to their, as of late, normal shape when they cooled down but man they were not happy. No more doing that! I guess I will have to wait for my new packs before I can fly more than once at a time.

- Chris

Variety+spice+life+supporting_paper_towel_industry=
King2+Rex450+Protos+Concept30
09-15-2008 05:10 PM
 
 
toolman18
Key Veteran
Location: Portland, Texas

That stinks Tj. Can you try a longer arm on the T/R servo? It may give you more control. I cant imagine all of your gyros not working.

We need video proof around here.
09-15-2008 08:15 PM
 
 
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e-E-Sky Honey Bee- Lama- Belt CP- E-Smart > New Protos stuff ... I mean ... BIG SCARY HELI!
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