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Home✈️Aircraft🚁Helicoptere-SABGoblin 570 › Goblin 570 6s head speed help
01-05-2015 04:14 PM  5 years ago
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GBaker110583

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Chandler AZ

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Goblin 570 6s head speed help
Hello all, I just got my first SAB Goblin and I am very excited to fly it. I am having some trouble setting up my desired head speeds on the castle gov.

Here is my set up

FBL System: Beastx
Motor: Quantum 4125-1100KV
Pinion: 21T Pulley
ESC: Castle Edge HV120 ESC
Governor: Castle Internal Gov
BEC: Gryphon Agena (GSR-5045) (with safety switch)
Cyclic Servos: MKS HBL950’s
Tail Servo: MKS HBL980

Desired head speeds:
Headspeeds: 1950/2200/2300

The Gov does not allow anything over 2300 and even with that it says that it has minimal overhead. I believe I am entering everything in correctly as it is just filling in the blanks.

I am trying to follow the same head speeds as Chris Reibert and really the only difference is the motor he is using is the Scorpion HKIII HK4025-1100KV.

Any help would be appreciated!

Thank you
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01-05-2015 06:02 PM  5 years ago
Rich Knapp

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Appleton, Wisconsin

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I use the listed H0215-21-S-21T Pinion = ratio 9.8:1
and my CC Edge 130 will not go over 2135 without a "To Low of Over head." warning also.

6S
Governed
CC Edge 130
21T pinion
Quantum 4125-1100Kv

I'm stretched to 600's , so never pursued what I was dong wrong that others get in the 2300's for HS.

Good point though and interested in whats going on.
Team Manager, Lynx and OXY HELI.
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01-05-2015 07:07 PM  5 years ago
Rich Knapp

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Appleton, Wisconsin

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I asked around and get the same response.
The Castle governor is notorious for wanting a large amount of overhead. You can safely run higher headspeeds than the Castle software feels comfortable with.
Team Manager, Lynx and OXY HELI.
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01-05-2015 07:41 PM  5 years ago
GBaker110583

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Chandler AZ

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At 2300 it says that it's too fast for gov.

Also the hobby shop did not set the throttle end points. Could that be part of the problem?

What throttle curves would you recommend? I'm not a smack guy yet but I like tic tocks and such. But I don't want to just do 100 flat lines. What do you think?
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01-05-2015 08:37 PM  5 years ago
TheNak

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Portland, OR USA

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GBaker,

I'm using the same motor, and also a KDE600XF-1100-G3.

Since these are both 1100kV motors, the same applies to both but the KDE is more powerful and runs hotter.

Anyway, I couldn't get the CC SW to stop complaining about 2300 or 2400rpm until I specified a 24T pinion. I've flown that combo and it works well. I bought 22, 23, and 24T pinions for tuning purposes.

Also, you are correct that you need to set the endpoints. I thought I had mine setup correctly, but actually didn't so it never got to 100% (as the ESC saw it) thus I was never able to command it to use the top 2400rpm governor "slot". I'm running 2000, 2200, and 2400rpm in my governor slots. Also, you say you're using BeastX and I'm using an AR7200 so it has the problem of taking too long to power up and not let you set the endpoints so I have to power up the AR7200 separately and let it connect to the TX, then plug in the flight battery to the ESC (also important for this procedure to remove the power wire from the ESC servo connector so its BEC isn't fighting the external power source you're using).

Brian
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01-05-2015 09:24 PM  5 years ago
ChrisMatthews

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Vernon, CT - USA

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goblin head speed
Get the 23T pinion at least. That will get you to your desired head speed with some overhead.
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01-05-2015 11:34 PM  5 years ago
GBaker110583

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Chandler AZ

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Sorry for the mix up. I am using the AR7200BX. I will set end points and see what it says.. I would at least like to run 1900 2100 and 2300
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01-05-2015 11:44 PM  5 years ago
crespo1

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parksville new york

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hi I run the 24 pinion on my 570 and got it set at 2350 norm 2450 idle 1 2550 idle 2
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01-05-2015 11:46 PM  5 years ago
crespo1

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and thats in governor mode in castle 130 amp
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01-06-2015 03:06 AM  5 years ago
GBaker110583

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Chandler AZ

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I have the castle 120 and the stock pinion... I'm going to set the throttle end points and see what head speeds I can run and how it flies.
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01-08-2015 08:28 PM  5 years ago
GBaker110583

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Chandler AZ

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Sorry to sound like a newbie but can someone point me where to purchase the 23t or 24t pinion? Also would I have to change anything with the tail? I'm new to goblins and this is my first one...
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01-08-2015 09:29 PM  5 years ago
TheNak

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Portland, OR USA

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A whole page of pulleys:

http://www.anythingheli.com/goblin-...featured&page=2

These guys ship incredibly quickly.

Brian
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01-09-2015 12:43 AM  5 years ago
GBaker110583

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If I change the pulley would I have to change the tail pulley

Right now it has the 21t pulley I'm thinking of putting the 23t when I want to increase the head speed but I would want to make sure the tail would still have enough authority...
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01-09-2015 12:47 AM  5 years ago
TheNak

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I didn't change my tail pulley and you shouldn't have to at the headspeeds you're talking about.
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01-09-2015 03:21 AM  5 years ago
crespo1

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parksville new york

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if you go with the 24t the tail pully will be fine run head speeds that i put up tail will be rock solid and you should get 5 min. flight on 4500 packs
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01-09-2015 03:09 PM  5 years ago
GBaker110583

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Chandler AZ

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Can someone clear this up real quick? I am using the AR7200BX and when I plug in the pack I'm not able to set the throttle end points... do I power up the esc or the BX first... I was told to unplug my bec and use a 2s flight pack for calibrating the throttle end points.
I promise I can build and fly lol but I'm still new to programming esc's. If someone could give me a step by step procedure that would be nice.
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01-09-2015 03:53 PM  5 years ago
TheNak

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Portland, OR USA

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Did you follow the procedure in the PDF you can download from the CC website?

The AR7200 needs to be powered up first and be allowed to connect to the TX. The ESC needs to be connected to the AR7200, but ONLY BY THE SIGNAL AND GROUND PINS ON ITS SERVO CONNECTOR. Your external pack should be the only thing powering the AR7200.

Then follow the instructions in setting the throttle endpoints to 50, put the throttle stick up full, power up the ESC, and increase the upper throttle endpoint until the ESC beeps a few times (sorry, I can't remember the exact beep sequence). Then put the throttle stick down full and repeat except increase the lower throttle endpoint until the ESC beeps.

A few points:
  1. Remove your blades!
  2. Don't mistake the single periodic beeps the ESC emits when it is powered up with the throttle endpoint "acknowledgement" beeps
  3. Make sure you have a linear throttle curve
Just for reference (I don't know what TX you are using), my DX9/AR7200/Talon HV120 combo needed my throttle endpoints set to 111/118 in order for the ESC to recognize the full range.

Brian
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01-09-2015 03:57 PM  5 years ago
Wynn1427

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Ca. 93612

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As indicated an alternate power source while is required.

AR7200bx addendum is here for additional reference to procedure -> http://www.bladehelis.com/ProdInfo/...al_addendum.pdf

Castle instructions should be between 6 & 7 of AR7200bx addendum -> http://www.castlecreations.com/supp...d_endpoints.pdf

Wynn
Logo 550sx
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01-09-2015 05:03 PM  5 years ago
GBaker110583

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Chandler AZ

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Yes I downloaded and reviewed the instructions from the castle website. I did follow the instructions but from what I understand the ar7200 takes too long to power up for the esc to enter the calibration mode when you aren't using a flight pack. I have the castle 120 gryphon bec ar7200 and dx9.

From what I was told by the hobby shop is to disconnect the bec and leave the esc plugged into the ar7200. I was just confused about which I should power up first.. the ar7200 or the esc.
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01-09-2015 05:10 PM  5 years ago
GBaker110583

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Chandler AZ

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Also I don't feel comfortable removing wires from servo leads. are there any other recommendations?
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Home✈️Aircraft🚁Helicoptere-SABGoblin 570 › Goblin 570 6s head speed help
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