Fun, Learning, Friendship and Mutual Respect
START  HERE


Unregistered
Go Back   HeliFreak > R/C Electronics Support > Skookum Robotics


Skookum Robotics Skookum Robotics SK-360 SK-540 & SK-720 Digital Flybar


Reply
 
Thread Tools Display Modes
Old 07-05-2012, 06:58 PM   #21
ckindt
Registered Users
 

Join Date: Jun 2007
Location: omaha
Default

Quote:
Originally Posted by gmcallister View Post
=] hi, the SK is gov is proactive which means it knows what's coming in advance and adjusts accordingly, the CC is reactive so it needs to see things when its too late before it can respond.

in addition the SK uses "pitch management" to control the headspeed when bogging is detected, so yes its superior and has bits to tweak!!
Ahhh - bits to tweak! That's up my alley.

Thanks for the reply. I have my phase detector on order so I have something cool to look forward too.
ckindt is offline        Reply With Quote
Old 07-07-2012, 03:29 AM   #22
Geffect
Registered Users
 

Join Date: Apr 2010
Location: Australia
Default

Quote:
Originally Posted by Laos_pilot View Post
hi all you guy

I am using the plastic tail blade now, KBDD, my be I switch to RJX carbon one. And still think that Align ESC's throttle response is not quick enought to run governor smoothly, but hard to find someone who sale Hobbywing in Laos. Do you think like me??
It might be the align ESC throttle response being too low.. It could also be the tail servo that isnt fast enough or strong enough to handle the rapid torque changes.. As already pointed out in the thread the SK gov is proactive just like the vbar gave so any movement of the collective increases/decreases the throttle to compensate for the pitch change.. Further throttle inputs are given by the gov. depending on other variables to maintain h/s...

What tail servo are you currently using?
Also you might want to set the precomp in the tail tab to 0 and see if that helps.. This will disable the collective precomp and reduce throttle changes...
Geffect is offline        Reply With Quote
Old 07-07-2012, 03:39 AM   #23
georgi UK
Registered Users
 
Posts: 10,253
Thread Starter Thread Starter
 

Join Date: Mar 2007
Location: United Kingdom
Default

=] +1 as above, possibly the SK gov needs to use the next pinion size up if headroom is too low? certainly get some carbon tails on her!
__________________
georgi UK
georgi UK is offline        Reply With Quote
Old 07-07-2012, 11:59 AM   #24
Laos_pilot
Registered Users
 
Posts: 67
 

Join Date: Jul 2012
Location: Vientiane
Default

Quote:
Originally Posted by Geffect View Post
It might be the align ESC throttle response being too low.. It could also be the tail servo that isnt fast enough or strong enough to handle the rapid torque changes.. As already pointed out in the thread the SK gov is proactive just like the vbar gave so any movement of the collective increases/decreases the throttle to compensate for the pitch change.. Further throttle inputs are given by the gov. depending on other variables to maintain h/s...

What tail servo are you currently using?
Also you might want to set the precomp in the tail tab to 0 and see if that helps.. This will disable the collective precomp and reduce throttle changes...
Quote:
Originally Posted by gmcallister View Post
=] +1 as above, possibly the SK gov needs to use the next pinion size up if headroom is too low? certainly get some carbon tails on her!
I'm using MKS DS95i with 6V from CC BEC
My tuning step by step is :
First I dont enable the SK gov, and disable the tai precomp too
then I tuning cyclic and tail, on pitch pump and pie disk to find the best gain for the tail that dont have tail blow out, tail wag and minimum tail kick in pitch pump
then I enable the SK gov and tail pre comp to reduce the tail kick.
tuning the gov gain
done!
Or may I miss some setting??
Laos_pilot is offline        Reply With Quote
Old 07-08-2012, 09:15 AM   #25
Geffect
Registered Users
 

Join Date: Apr 2010
Location: Australia
Default

Quote:
Originally Posted by Laos_pilot View Post
I'm using MKS DS95i with 6V from CC BEC
My tuning step by step is :
First I dont enable the SK gov, and disable the tai precomp too
then I tuning cyclic and tail, on pitch pump and pie disk to find the best gain for the tail that dont have tail blow out, tail wag and minimum tail kick in pitch pump
then I enable the SK gov and tail pre comp to reduce the tail kick.
tuning the gov gain
done!
Or may I miss some setting??
1. Disable Gov and set Tail - "Collec Mix" = 0
2. Tune tail to hold as best you can doing pitch pumps and no wag...etc. You might need to play around with the individual Rate and Heading hold gain.. One of the (im not sure which) will assist with countering some of the torque.. Its unlikely you will be able to tweak it to hold 100% during pitch pump without some "Collec Mix" but you should be able to get it close..
3. Once you are happy with tail performance without the gov. , enable gov. (leave Collec Mix alone) and see if the tail and cyclic behave. Slowly increase the gov. gain until you see the wobble or bounce in cyclic/tail and reduce the gov. gain 1-2 pts at a time until the heli is stable again.
4. Add some "Collec Mix" (pre-comp). Increase slowly until you have the tail holding on pitch pumps..

Now go fly the snot out of your heli..
Geffect is offline        Reply With Quote
Old 07-09-2012, 02:51 PM   #26
CeeveeSiN
Registered Users
 
Posts: 5,353
 
My HF Map location
Join Date: Sep 2008
Location: Houston Texas
Default

Quote:
Originally Posted by InvertedCNC View Post
Ok, I'm obviously in the minority here as a nitro user...but this gov is completely backassward for nitro. Is it too much to ask for a nitro gov update that is up to industry standards? ...one that is flight mode switchable via aux channel and none of this throttle curve junk? Patiently waited through faulty usb ports..cracked cases..low vib tolerances..promised gps. please can we nitro guys at least get a serviceable gov? please.....
whats wrong with it? works exactly like the Vbar gov does..

Im flying it perfectly on my Nitro Velocity. it holds way better than my MGP ever did and no messing with a secondary panel.
__________________
SAB USA Field Rep, Skookum Field Rep,
Team Lynx
.
Goblin 700, Goblin 630, Goblin 500
CeeveeSiN is online now        Reply With Quote
Old 07-09-2012, 07:17 PM   #27
desertstalker
Registered Users
 

Join Date: Apr 2011
Location: Australia
Default

Quote:
Originally Posted by CeeveeSiN View Post
whats wrong with it? works exactly like the Vbar gov does..
and since the VBar was the first to add a Gov to a FBL system i guess you can say it works according to standards.
__________________
-DX8
-MSH MiniProtos Stretched, SK720, DS95/DS95i, Hyp 4S 25C 2500mAh
-MSH Protos Stretched, Brain, Hyp DS16/BLS251, 6S 3000mAh
-Goblin 500, HC3SX, Hyp DH16/MKS980BL, Scorp 4015-1100
desertstalker is offline        Reply With Quote
Old 07-10-2012, 09:29 PM   #28
ckindt
Registered Users
 

Join Date: Jun 2007
Location: omaha
Default

I have my 720's governor working well with my cc ice 75 in heli mode with fixed enpoints.

My question is: How do I reset my cc data log memory from my controller? Before, I was able to power the esc up in IU2 at 100% throttle and that tells the cc esc to erase its data log memory.

Now, it seems with the SK in governor mode it won't put out 100% throttle until the esc is armed first at 0% throttle. That means I have to erase the cc log memory with the laptop only - ugh!

Please tell me there's a way to do it from the sticks and still maintain gov mode in my sk!
ckindt is offline        Reply With Quote
Old 07-14-2012, 05:47 PM   #29
ckindt
Registered Users
 

Join Date: Jun 2007
Location: omaha
Default

Quote:
Originally Posted by ckindt View Post
I have my 720's governor working well with my cc ice 75 in heli mode with fixed enpoints.

My question is: How do I reset my cc data log memory from my controller? Before, I was able to power the esc up in IU2 at 100% throttle and that tells the cc esc to erase its data log memory.

Now, it seems with the SK in governor mode it won't put out 100% throttle until the esc is armed first at 0% throttle. That means I have to erase the cc log memory with the laptop only - ugh!

Please tell me there's a way to do it from the sticks and still maintain gov mode in my sk!
Anyone else know about this or isn't it cool to reset your cc logs without a pc connected?
ckindt is offline        Reply With Quote
Old 07-22-2012, 08:40 PM   #30
neoalchemist74
Registered Users
 
Posts: 372
 
My HF Map location
Join Date: Nov 2011
Location: Boulder co,
Default

Quote:
Originally Posted by ckindt View Post
Anyone else know about this or isn't it cool to reset your cc logs without a pc connected?
I did not know you could do this. Very useful. Does it work on an Ice 80 HV?
Also I'm glad to hear you got the SK gov working with a cc Ice in heli mode. I wasn't planning on using mine because I 'm not starting my Fusion 50 in airplane mode. Did you do anything special with your setup and why do others claim you have to run the esc in airplane mode?
neoalchemist74 is offline        Reply With Quote
Old 07-23-2012, 08:26 AM   #31
360Wings
Registered Users
 

Join Date: Jul 2010
Location: Australia
Default

Quote:
Originally Posted by neoalchemist74 View Post
I did not know you could do this. Very useful. Does it work on an Ice 80 HV?
Also I'm glad to hear you got the SK gov working with a cc Ice in heli mode. I wasn't planning on using mine because I 'm not starting my Fusion 50 in airplane mode. Did you do anything special with your setup and why do others claim you have to run the esc in airplane mode?
I tried the ICE280hv, SK540 with hyperion sensor using airplane mode and it didnt go so well.. The hyperion sensor and the ICE280HV work but arnt the greatest. I think if you use a digital phase sensor i.e. hobbywing rpm sensor it would work much better.

The spool up would stall at a certain rpm ~700-800rpm and go no further, alternatively it would just go from 0rpm to the requested rpm 2100 immediately which scared the crap out of everyone..

I had good results using heli mode, medium to high startup rate and high throttle response.. The CC soft start does its thing and the SK540 takes over after that... Occassionally i had the Hyperion phase sensor glitch and the spool up stalls at 1000-1200 rpm, but a quick TH, allow the rpm to slow right down and she spooled up fine..

Im going to try the SK540 with Hobbywing HV120 and hobbywing digital rpm sensor to compare performance against the ICE2/SK540/Hyperion setup. Should be an improvement from all reports.
360Wings is online now        Reply With Quote
Old 07-23-2012, 09:27 AM   #32
nickyd
Registered Users
 
Posts: 1,456
 

Join Date: Feb 2010
Location: Lancashire to Switzerland
Default

Try heli mode, high startup ( 85%), low timing (0), pwm (12kHz). On my ice 50 i need latest 4.01 software. Works perfect
__________________
-Nick

Mini Titan E325 V1 FBL, SK720BE, T-Tube,Scorpion 2221-8, Ice Lite 50, CC 10amp BEC, MKS DS95 ,DS95i , Align 325mm Mains and Kbdd 61mm Tail Blades, . DX7 . Sport Flyer.
Nano Cpx (Inverted trainer)
nickyd is offline        Reply With Quote
Old 07-24-2012, 09:32 AM   #33
aclysma
Registered Users
 

Join Date: Jan 2012
Location: San Diego, CA (Carlsbad)
Default

I run my three flight modes like this:

Linear pitch curves on all modes
Throttle = a flatline that determines the RPM.

This worked perfect with the CC governor.

Does this requirement of slowly ramping the throttle to allow the governor to engage with the speed controller mean that I have to go back to one spool up mode and 2 idle ups rather than 3 idle ups and rely on soft start?
__________________

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
aclysma is offline        Reply With Quote
Old 07-24-2012, 10:05 AM   #34
nickyd
Registered Users
 
Posts: 1,456
 

Join Date: Feb 2010
Location: Lancashire to Switzerland
Default

I switch from throttle hold to a flat 100%. This works fine for me with no ramp.

Nick
__________________
-Nick

Mini Titan E325 V1 FBL, SK720BE, T-Tube,Scorpion 2221-8, Ice Lite 50, CC 10amp BEC, MKS DS95 ,DS95i , Align 325mm Mains and Kbdd 61mm Tail Blades, . DX7 . Sport Flyer.
Nano Cpx (Inverted trainer)
nickyd is offline        Reply With Quote
Old 01-07-2013, 06:53 PM   #35
shadco
Registered Users
 
Posts: 1,945
 
My HF Map location
Join Date: Dec 2011
Location: NC
Default

The first post in this thread should be stickied or added to the gov setup.

I kind of arrived at this thru trial and error that part where you get the steps between normal, IU1 and IU2 to work properly by change the throttle curves until I got 3 steps.
__________________
Synergy E5-S KDE 600XF MKS HV YGE Vbar : Compass 6HV Quantum 4125 MKS HV YGE Ikon
SAB G500 Savox 4050 KST/MKS HV JIVE 100LV VBAR
Compass Warp Scorpion 2520 MKS YGE SK540 : 130X MCPX BL Nano 14SG DX8
shadco is offline        Reply With Quote
Old 01-08-2013, 09:07 AM   #36
georgi UK
Registered Users
 
Posts: 10,253
Thread Starter Thread Starter
 

Join Date: Mar 2007
Location: United Kingdom
Default

Quote:
Originally Posted by shadco View Post
The first post in this thread should be stickied or added to the gov setup.
=] good thinking! link is now added to gov video in the sticky....
__________________
georgi UK
georgi UK is offline        Reply With Quote
Reply




Unregistered
Go Back   HeliFreak > R/C Electronics Support > Skookum Robotics


Skookum Robotics Skookum Robotics SK-360 SK-540 & SK-720 Digital Flybar

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Copyright © 2004-2011 - William James - Helifreak.com