Servo Upgrade Options

From RoboBrothers.com (Livermore, CA) came the first sub US$400 humanoid robot kit to appear late 2007
8 postsPage 1 of 1
8 postsPage 1 of 1

Servo Upgrade Options

Post by jaybirdtke » Mon Jan 21, 2008 4:43 am

Post by jaybirdtke
Mon Jan 21, 2008 4:43 am

I have not tested any of the following servos in my RoboPhilo. This is simply a list of similar size servos that might make good replacements.

DIGITAL SERVOS From Tower Hobbies @ 6.0V
Cost ---- Model --- Spd -- Torq
$40.00 - TS-150 - 0.21 - 14.0 - BB - MG
$45.00 - TS-160 - 0.14 - 9.43 - BB - MG

COMPARE TO ROBONOVA - HSR-8498HB @ 6.0V
Cost ---- Model --- Spd -- Torq
$79.00 - 8498HB- 0.20 - 7.40

COMPARE TO KHR-2HV - KRS-788HV @ 10.8V
Cost ---- Model --- Spd -- Torq
$53.79 - 788-HV - 0.14 - 10.0

STANDARD SERVOS
Cost ---- Model --- Spd -- Torq
$12.50 - SV4032 - 0.19 - 4.10
$25.00 - SV4140 - 0.16 - 6.50
$25.00 - S3010 --- 0.16 - 6.50
$35.00 - S3305 --- 0.20 - 8.90 - BB - MG
$35.00 - TS-70MG- 0.20 - 9.60 - BB - MG
I have not tested any of the following servos in my RoboPhilo. This is simply a list of similar size servos that might make good replacements.

DIGITAL SERVOS From Tower Hobbies @ 6.0V
Cost ---- Model --- Spd -- Torq
$40.00 - TS-150 - 0.21 - 14.0 - BB - MG
$45.00 - TS-160 - 0.14 - 9.43 - BB - MG

COMPARE TO ROBONOVA - HSR-8498HB @ 6.0V
Cost ---- Model --- Spd -- Torq
$79.00 - 8498HB- 0.20 - 7.40

COMPARE TO KHR-2HV - KRS-788HV @ 10.8V
Cost ---- Model --- Spd -- Torq
$53.79 - 788-HV - 0.14 - 10.0

STANDARD SERVOS
Cost ---- Model --- Spd -- Torq
$12.50 - SV4032 - 0.19 - 4.10
$25.00 - SV4140 - 0.16 - 6.50
$25.00 - S3010 --- 0.16 - 6.50
$35.00 - S3305 --- 0.20 - 8.90 - BB - MG
$35.00 - TS-70MG- 0.20 - 9.60 - BB - MG
jaybirdtke offline
Savvy Roboteer
Savvy Roboteer
User avatar
Posts: 90
Joined: Tue Dec 18, 2007 1:19 am

Post by trey3670 » Mon Jan 21, 2008 8:04 pm

Post by trey3670
Mon Jan 21, 2008 8:04 pm

I did get the 3003 to work as well as a s9203 metal gear.
I did get the 3003 to work as well as a s9203 metal gear.
trey3670 offline
Savvy Roboteer
Savvy Roboteer
Posts: 115
Joined: Mon Dec 24, 2007 1:03 am

Post by jaybirdtke » Wed Jan 30, 2008 11:06 pm

Post by jaybirdtke
Wed Jan 30, 2008 11:06 pm

Replacement servo gears for the SV4032 and SV4140 are now available on the robobrothers website.
Replacement servo gears for the SV4032 and SV4140 are now available on the robobrothers website.
jaybirdtke offline
Savvy Roboteer
Savvy Roboteer
User avatar
Posts: 90
Joined: Tue Dec 18, 2007 1:19 am

Post by ozzy69 » Mon Feb 04, 2008 10:22 pm

Post by ozzy69
Mon Feb 04, 2008 10:22 pm

so has anyone upgraded the servos yet? if you did which servos did you use and did it make a difference?
so has anyone upgraded the servos yet? if you did which servos did you use and did it make a difference?
ozzy69 offline
Robot Builder
Robot Builder
Posts: 11
Joined: Fri Jan 25, 2008 10:35 am

Post by jaybirdtke » Mon Feb 04, 2008 11:42 pm

Post by jaybirdtke
Mon Feb 04, 2008 11:42 pm

I ordered the SV4140 upgrade servo kit for the hip servos but they have not yet arrived. I'll keep you posted. I hope he will be able to balance on one leg and lift the other leg to a 90 degree position using only the hip servo.
I ordered the SV4140 upgrade servo kit for the hip servos but they have not yet arrived. I'll keep you posted. I hope he will be able to balance on one leg and lift the other leg to a 90 degree position using only the hip servo.
jaybirdtke offline
Savvy Roboteer
Savvy Roboteer
User avatar
Posts: 90
Joined: Tue Dec 18, 2007 1:19 am

Post by Baccman » Tue Feb 05, 2008 3:48 am

Post by Baccman
Tue Feb 05, 2008 3:48 am

Do the parts also have to come from China, or do robobrothers stock in CA?
Do the parts also have to come from China, or do robobrothers stock in CA?
Baccman offline
Robot Builder
Robot Builder
Posts: 16
Joined: Fri Jan 25, 2008 3:34 am

Post by jaybirdtke » Wed Feb 06, 2008 11:54 pm

Post by jaybirdtke
Wed Feb 06, 2008 11:54 pm

That's a good question. I placed my order a little over a week ago, and have yet to receive even a confirmation that it has shipped.
That's a good question. I placed my order a little over a week ago, and have yet to receive even a confirmation that it has shipped.
jaybirdtke offline
Savvy Roboteer
Savvy Roboteer
User avatar
Posts: 90
Joined: Tue Dec 18, 2007 1:19 am

Post by jaybirdtke » Sun Feb 10, 2008 4:55 am

Post by jaybirdtke
Sun Feb 10, 2008 4:55 am

I received my SV4140 upgrade kit on Friday and just got around to installing them along with the replacement head turn servo. I used the gears from one of the original hip servos to replace the ones in the shoulder that I stripped. While doing so I noticed I had stripped the gears in one of the SV4130 hip servos. So now his only upgrades are the hip servos to SV4140's and it makes a big difference. If you have a RoboPhilo I highly recommend upgrading at least the hip servos. One of the major selling points to this bot is the low cost so I don't think I'll be upgrading many more servos, but only time will tell. Going from the SV4130 to the SV4140 did make a noticable difference.
I received my SV4140 upgrade kit on Friday and just got around to installing them along with the replacement head turn servo. I used the gears from one of the original hip servos to replace the ones in the shoulder that I stripped. While doing so I noticed I had stripped the gears in one of the SV4130 hip servos. So now his only upgrades are the hip servos to SV4140's and it makes a big difference. If you have a RoboPhilo I highly recommend upgrading at least the hip servos. One of the major selling points to this bot is the low cost so I don't think I'll be upgrading many more servos, but only time will tell. Going from the SV4130 to the SV4140 did make a noticable difference.
jaybirdtke offline
Savvy Roboteer
Savvy Roboteer
User avatar
Posts: 90
Joined: Tue Dec 18, 2007 1:19 am


8 postsPage 1 of 1
8 postsPage 1 of 1