Mini-Z, Kyosho Mini-Z Racer, MR-03, MR-02, MA-010, Forums, News, Pictures, Parts, and Shop - Mini-ZRacer.com
Forums, Mini-Z, MiniZ, Kyosho Mini-Z, Kyosho MiniZ, Kyosho Mini-Z Racer
Mini-Z Hop-Ups, Mini-Z Parts, MiniZ Hop-Ups, MiniZ Parts, Kyosho Mini-Z Hop-Ups, Kyosho Mini-Z Parts, Kyosho MiniZ Hop-Ups, Kyosho MiniZ Parts, Kyosho Mini-Z Racer Hop-Ups, Racer Kyosho Mini-Z Parts
Old 2011.12.16, 11:15 AM   #1
Bodom
Registered User
 
Bodom's Avatar
 
Join Date: Dec 2007
Location: Sofia,Bulgaria
Posts: 279
МА-010 with MR-03 board - steering travel problem

Hello,
My MA-010 is on 03 board from some time on.
The problem is that with the KT-18 transmitter I couldn't get the steering to use it's whole range. I hit the maximum to the left on the controller and not on the servo.

Now I got EX-10 Helios with RF-901SM and I've read this thread.
But with 70% steering travel and steering balance - my servo barely moves.
I can get it to hit both left and right maximums of the servo by setting the Steering Travel to 122% and steering balance to 69% both left and right.
I've also moved the Steering Sub Trim to L30.

My MR-03 works just fine with the recommended settings, but the patched MA-010 doesn't.

Is it safe to use it that way - at 122% ST.TRAVEL ?
What is your setup for MA-010 with 03 board ?
I've thought for modifying the steering pot's resistance to increase steering travel..
__________________
Bodom is offline   Reply With Quote
Old 2011.12.16, 12:25 PM   #2
machgo5go
DJ Eddie!
 
machgo5go's Avatar
 
Join Date: Jan 2010
Location: Scary North East
Posts: 1,166
Quote:
Originally Posted by Bodom View Post
Hello,
My MA-010 is on 03 board from some time on.
The problem is that with the KT-18 transmitter I couldn't get the steering to use it's whole range. I hit the maximum to the left on the controller and not on the servo.

Now I got EX-10 Helios with RF-901SM and I've read this thread.
But with 70% steering travel and steering balance - my servo barely moves.
I can get it to hit both left and right maximums of the servo by setting the Steering Travel to 122% and steering balance to 69% both left and right.
I've also moved the Steering Sub Trim to L30.

My MR-03 works just fine with the recommended settings, but the patched MA-010 doesn't.

Is it safe to use it that way - at 122% ST.TRAVEL ?
What is your setup for MA-010 with 03 board ?
I've thought for modifying the steering pot's resistance to increase steering travel..
That is the drawback in such high range travel with 03 board since steering servo motor is not coreless like a normal 03 chassis.
I rather live with this then fighting Reverse delay from it's original 02 board.
__________________
MRX Mclaren MP-12CGT3 PN 43T LIPO: X2
MR-03 Mclaren MP-12CGT3 AT70T
PN 2.5 Mclaren MP-12CGT3 PN50T
MR-03 S2K Narrow AT60T Nihm
MR-03 BRZ Narrow PN70T Nihm
MR-03 Enzo Ferrari GT Concept Xspeed SP2012
MR-03VE 2005 NSXGT AT 12000KV w/Lipo
MR-02 Nissan R390 GT Lemans 39T PN
AMZ Benz TC 8500KV
X Power IDT Ultra 5600KV Audi
X Power IMT Ultra 6800KV M3
MB-010 FT86 Comic Racer 39T PN
MF-015 Mclaren MP4-25 50T w/Lipo PN
MR-01 Mugen NSX-GT 02 X Speed Retired
dNaNo FX-101MM T2 XANAVI NISMO GT-R

***************************************
MAJ'S HOBBY SHOP " A Place To Escape from Reality"! TD
214 State St. Suite 209
Hackensack, NJ 07601. 201-820-1347
LIVE Mini-Z RACING EVERY Fri at 7 PM.
Outdoor Saturday On Road Racing 1/8GTVE,1/10TC&USGT


DG DESIGNS

machgo5go is offline   Reply With Quote
Old 2011.12.16, 02:14 PM   #3
JuniorWKR
White Knuckle Racing
 
JuniorWKR's Avatar
 
Join Date: Sep 2008
Posts: 3,708
try 0.5 degrees of toe in. this wil help you out a bit.. Its what i did on mine.
__________________
Junior
MHS Director of Public Relations / Track Coordinator
TEAM DRIVER FOR: MHS - DG Designs - TEAM SCREAM RACING -TOP SECRET MOTORS -LL3 INDUSTRIES - REFLEX RACING - Dream Killr

LIVE Mini-Z Racing Every Fri and Sat Nite 7pm - Dnano Racing Every Mon Nite 530pm - 1/16th - 1/18th Off Road Racing (times and days to be announced)
JuniorWKR is offline   Reply With Quote
Old 2011.12.16, 02:18 PM   #4
color01
Moderator
 
color01's Avatar
 
Join Date: Dec 2004
Location: Los Angeles (Pasadena), CA, USA
Posts: 2,809
I'm pretty sure it's just a potentiometer thing... just replace the MA-010 potentiometer with the MR03 pot. Since the actual steering angle range on the pot is almost the same between the 03 and the AWD, the MR03 pot will not register any difference back to the PCB, and thus you'll be back to normal. If the steering is reversed left/right afterwards, you can reverse it again on the Helios to make it work properly.
__________________
Brian Ma

Greyscale RC

PN Racing | My TinyRC Blog
color01 is offline   Reply With Quote
Old 2011.12.16, 02:26 PM   #5
Bodom
Registered User
 
Bodom's Avatar
 
Join Date: Dec 2007
Location: Sofia,Bulgaria
Posts: 279
Quote:
Originally Posted by color01 View Post
I'm pretty sure it's just a potentiometer thing... just replace the MA-010 potentiometer with the MR03 pot. Since the actual steering angle range on the pot is almost the same between the 03 and the AWD, the MR03 pot will not register any difference back to the PCB, and thus you'll be back to normal. If the steering is reversed left/right afterwards, you can reverse it again on the Helios to make it work properly.
I use the pot that came with the board (MR03 pot), since it's a new one and I wanted to replace everything. The motor is also new one. I just swapped two wires from the pot. So it's not that.
Do you have MA-010 with 03 board color01?

edit:
Quote:
Originally Posted by JuniorWKR View Post
try 0.5 degrees of toe in. this wil help you out a bit.. Its what i did on mine.
More toe-in helped a bit. Thanks.
__________________

Last edited by Bodom; 2011.12.16 at 02:44 PM.
Bodom is offline   Reply With Quote
Old 2011.12.17, 01:50 PM   #6
color01
Moderator
 
color01's Avatar
 
Join Date: Dec 2004
Location: Los Angeles (Pasadena), CA, USA
Posts: 2,809
Quote:
Originally Posted by Bodom View Post
I use the pot that came with the board (MR03 pot), since it's a new one and I wanted to replace everything. The motor is also new one. I just swapped two wires from the pot. So it's not that.
Do you have MA-010 with 03 board color01?
I do not, but I was following MK2kompressor's build very closely as he was one of the first people to put an 03 board in the 010. No problems reported from his end. The problem you're describing seriously doesn't make any sense if you assume all the components (pot, motor, PCB) are working properly. Why would the same pot read the same steering angle differently between two cars? That's the logic behind my conclusions...

This technically shouldn't work, but have you tried swapping the wires on the pot? What happens?
__________________
Brian Ma

Greyscale RC

PN Racing | My TinyRC Blog
color01 is offline   Reply With Quote
Old 2011.12.18, 08:46 AM   #7
JuniorWKR
White Knuckle Racing
 
JuniorWKR's Avatar
 
Join Date: Sep 2008
Posts: 3,708
there is definitly a decrease in overall turning radius when you put the 03 board on the awd... dont know why... everyon has the same issue that i have personally seen on their cars as well with the same conversion... a little bit of toe in solved our issues... we are all using the stock awd steering components and just swapped boards..
__________________
Junior
MHS Director of Public Relations / Track Coordinator
TEAM DRIVER FOR: MHS - DG Designs - TEAM SCREAM RACING -TOP SECRET MOTORS -LL3 INDUSTRIES - REFLEX RACING - Dream Killr

LIVE Mini-Z Racing Every Fri and Sat Nite 7pm - Dnano Racing Every Mon Nite 530pm - 1/16th - 1/18th Off Road Racing (times and days to be announced)
JuniorWKR is offline   Reply With Quote
Old 2011.12.18, 12:46 PM   #8
Bodom
Registered User
 
Bodom's Avatar
 
Join Date: Dec 2007
Location: Sofia,Bulgaria
Posts: 279
The story is the following:
Got an 27Mhz AM MA-010 Readyset. Hopped it up.
Got pissed up by the glitches.
Got an KT-18 transmitter with MR-03 (different story).
Got an RA-22 board and new Atomic steering motor.
Swapped the board and motor (just removed the core-less motor from the RA-22 kit) and swapped green and orange pot wires on the board.
I got ridiculous turning radius with the KT-18 so I gave up using my AWD as racing car.
Now I have Helios and the MA-010 turns fine again, but I wonder if this high ST.TRAVEL is fine with the RA-22 board...

It is reasonable that the pot should read the same values used in the two types of servos, but the MA-010 servo has less travel overall I think..
Don't know what's wrong with my car, that's why I ask for your configurations on the radio using MA-010 with RA-22 board.

Thank you all for the replies

Cheers.
__________________
Bodom is offline   Reply With Quote
Old 2011.12.18, 02:45 PM   #9
color01
Moderator
 
color01's Avatar
 
Join Date: Dec 2004
Location: Los Angeles (Pasadena), CA, USA
Posts: 2,809
I see I see... well, there's certainly no problem putting the ranges above 100% -- as long as you don't hear any mechanical strain coming from the servo, there is probably nothing wrong with it. You can always decrease the steering travel to 100% and increase the steering balance L/R up to 90% or so, which will bring the steering travel back up.

If you want to play around with it and understand the MR03 PCB, you can swap both the pot wires and the servo motor wires so the servo runs in reverse. If the PCB is reading the pot any differently, you'll notice a change in servo travel, and that will make it clear why everyone gets this result on the MA010. Otherwise, I think you're good, just have fun.
__________________
Brian Ma

Greyscale RC

PN Racing | My TinyRC Blog
color01 is offline   Reply With Quote
Old 2011.12.18, 03:33 PM   #10
z3zinho
Registered User
 
Join Date: Nov 2007
Posts: 161
The different turning radius doesn't make much sense unless either a) 03 boards have a different pot (same size , different value), or b)the pot doesn't rotate as much on the 03 vs the awd/02... Anyone checked this?
__________________
Reflex Racing International Team Driver
Alberto Carvalho - Portugal
z3zinho is offline   Reply With Quote
Old 2011.12.18, 04:53 PM   #11
color01
Moderator
 
color01's Avatar
 
Join Date: Dec 2004
Location: Los Angeles (Pasadena), CA, USA
Posts: 2,809
The MA010 has a tiny bit less (10% or so?) travel than the MR03, and either the pot or motor needs to be reversed if I recall correctly, since the MA010 has one less gear in the servo. In all cases (MA010/MR03/MR02) the pot is attached to the final servo gear, which has almost the exact same travel as the actual steering angle at the servo saver. So I would expect that there is some difference in steering travel, but not as large as what bodom is reporting. That's unfortunately all I can help with.
__________________
Brian Ma

Greyscale RC

PN Racing | My TinyRC Blog

Last edited by color01; 2011.12.18 at 04:57 PM.
color01 is offline   Reply With Quote
Old 2011.12.18, 06:33 PM   #12
lfisminiz
MINI-Z BODY NUT
 
lfisminiz's Avatar
 
Join Date: Mar 2003
Location: pa.
Posts: 5,027
You should not have any trouble with the higher radio setting. ALL my cars have an 03 board in them....F-1, AWD, 02. ALL my radio setting are higher than the recomended 70/70 etc...I have been racing with them all with the higher radio setting with no trouble at all.
__________________
MINI-Z BODY NUT





DG DESIGNS - PN RACING - MANTISWORX
lfisminiz is offline   Reply With Quote
Old 2011.12.18, 06:34 PM   #13
lfisminiz
MINI-Z BODY NUT
 
lfisminiz's Avatar
 
Join Date: Mar 2003
Location: pa.
Posts: 5,027
My 03 cars with 03 boards do have lower radio setting. I think its just a difference in the 03 board when put in other cars other than a 03.
__________________
MINI-Z BODY NUT





DG DESIGNS - PN RACING - MANTISWORX
lfisminiz is offline   Reply With Quote
Old 2011.12.19, 11:35 AM   #14
GIHOSU
Unregistered Abuser
 
GIHOSU's Avatar
 
Join Date: Mar 2008
Location: NY
Posts: 245
The difference is not in the electronics. There is one major difference between the servo gears in an MR-03 and the older gears in the MR-02/015s and the MA-010s that explains the differences in steering with the 03 board swap.

If you look closely at the servo gears and compare the final gears with the peg, the distance from the pivot point of the gears to the center of the peg that moves the arm is 4mm on the older gears and 7mm on the new ones that are used in the 03. That longer final gear, which is essentially a servo horn, makes the arm to the servo saver swing on a larger radius and so 03 servo moves more distance for each degree of gear rotation than the older cars. This change in geometry is a roughly 40% difference.

I am using 90% steering travel on my Helios with my MA-010 with an 03 board, on all my other cars I use 50-65% steering travel depending on the setup. My radio settings needed to have increased travel to account for the decreased steering throw from using a old servo gear set with an 03 board. It is like installing a longer servo horn on a bigger scale car.
__________________
EMURacing - FAST by FAQISH - REFLEXRACING - Mantis Worx - DG Designs - GSR
CRUIZIN with RCs - Waldwick, NJ
GIHOSU is offline   Reply With Quote
Old 2011.12.20, 02:47 AM   #15
Bodom
Registered User
 
Bodom's Avatar
 
Join Date: Dec 2007
Location: Sofia,Bulgaria
Posts: 279
Quote:
Originally Posted by GIHOSU View Post
.....
That pretty much explains everything
Thank you!
__________________
Bodom is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Steering problem jbenthobbies Mini-Z AWD MA-010, MA-015 7 2006.11.26 01:10 PM
MM02 steering problem pyro147 Beginner Questions 6 2006.03.29 02:54 AM
Another Steering Problem... carfreak_22 Mini-Z Monster MM-01 18 2005.04.08 10:51 AM
Steering Centering problem on MR02 melvin Mini-Z Racer MR-02 3 2004.04.14 05:23 AM
Problem with board...MSG board... Strider- Off-Topic 3 2002.04.05 11:25 PM


All times are GMT -5. The time now is 07:09 AM.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright 2011 Mini-ZRacer.com
Mini Inferno Sale - Up to $85 Instant Savings!
Micro-T Hop-Ups
RC18R, M18, Micro RS4, Mini-LST, TamTech-Gear, Minizilla, RC18T, RC18B, RC18MT
shop.tinyrc.com Products

more»
Tiny RC Community News
[03/22/17] MZR was on vacation, didn't... : All kidding aside, the host experienced a bit of a server meltdown last week and efforts to restore the site to a new server took longer than anticipated. The current server is temporary until - more»
[11/25/15] Did You Hear? Our Black... : Hey Racers,
We're getting started a bit early with our Black Friday sale this year.  Generally we're not supporters of retailers opening early on Thanksgiving, but in our case, we're - more»
[06/30/15] shop.tinyrc.com: Have You... : Hey All! Just a quick reminder to everyone that we post all of our shop.tinyrc.com Newletters here on the MZR Forum. If for some reason you miss them in your email inbox, you can always see the - more»
Mini-Z, Mini-Z Racer, MR-02, MA-010
M18, M18T, RC18T, Mini-LST, Mini-T, Micro RS4, XRay, 1/18, 18th scale
XMODS, XMOD, Micro Flight, ZipZaps, ZipZaps SE, Bit Char-G, MicroSizers, TTTT, Plantraco Desktop Rover, SuperSlicks, Digi Q
Mini Inferno, Mini Inferno ST, half EIGHT, 1/16, 16th scale
Epoch, Indoor Racer, 1/43, 43rd scale
E-Savage, eSavage, eZilla, e-Zilla, HPI
Robots, Bots, Bipeds, Wheeled, Manoi, Roomba, NXT, Lego, Hacking
Crawling, Crawlers, Micro, RC, Losi Mini-Rock Crawler, Duratrax Cliff Climber
Kyosho Minium, Caliber 120, Minium Forums
Mini-Z Hop-Ups, Mini-Z Parts, Mini Inferno Hop-Ups, Mini Inferno Parts, M18 Hop-Ups, M18 Parts