-
Welcome to RCCrawler Forums.
It looks like you're enjoying RCCrawler's Forums but haven't created an account yet. Why not take a minute to register for your own free account now? As a member you get free access to all of our forums and posts plus the ability to post your own messages, communicate directly with other members, and much more. Register now!
Already a member? Login at the top of this page to stop seeing this message.
RR10 2-speed
- Thread starter Jus
- Start date
fr8cture
I wanna be Dave
It should. The RR10 came with the servo mount I believe? That would be the only issue is the servo mount.
I have both the SSD 2speed Kit & the Axial 2speed Kit. The only hang up I found with the SSD kit is the lack of a shift lever. The input to the shift fork has a tendency to roll around, making performance inconsistent. If you can get over that hump, it's a good set that will work as well as the official axial version.
The thing that I've found when putting a 2-speed in my RR10, is that a full size servo fits uncomfortably tight but a low profile servo works very well. On the Yeti the shift servo didn't matter, but the RR10 has everything oriented slightly at an angle, & slightly closer together.
The thing that I've found when putting a 2-speed in my RR10, is that a full size servo fits uncomfortably tight but a low profile servo works very well. On the Yeti the shift servo didn't matter, but the RR10 has everything oriented slightly at an angle, & slightly closer together.
AWraith build
Quarry Creeper
Yeah I pulled my Ssd out of my yeti and threw it in the bomber. In the yeti it shifted like crap but shifts nice a crisp in the bomber.
I have no idea on that. I have had the skid out but I didn't study that area too much yet. Didn't know what i was looking at yet anyway lol
haven't opened the spare parts bag either. Need to soon.
fr8cture
I wanna be Dave
It should be in the spare parts bag. You can use the Axial shift linkage with the SSD with some work too. Its a $12 parts tree and a much better design.
AWraith build
Quarry Creeper
The servo mount is in there and it is a much straighter linkage on the bomber so the Ssd works awesome.
I just ordered the SSD 2 speed kit and have a quick question. It has been mentioned that a lower profile servo fits better but would the stock steering servo that comes with the Bomber fit? I have some Hitec 225mg servos running around and while they are only rated at 66oz/in at 6v I am sure that they would work. With that being said I would just use the steering servo if it will fit.
meatmonkey
I wanna be Dave
What is the difference in ratio's between the Axial 2-speed conversion and the SSD? Do the 2- speeds just add a low gear, or also alter the top gear ratio?
Is there a weight difference between the two?
How much servo torque is recommended to shift the 2-seed? Does it need a servo saver, or are properly set endpoints enough?
I like the idea of using the stock steering servo for a shift servo. Is there room for a fullsize shift servo? Is the only interference with the interior?
Is there a weight difference between the two?
How much servo torque is recommended to shift the 2-seed? Does it need a servo saver, or are properly set endpoints enough?
I like the idea of using the stock steering servo for a shift servo. Is there room for a fullsize shift servo? Is the only interference with the interior?
ratrod63
Rock Stacker
I installed the Axial 2 speed conversion in mine. I used the stock steering servo for the shift servo. It fit perfect and has plenty of torque to shift it.
The Axial conversion comes with a servo saver.
The Axial conversion comes with a servo saver.
Thanks ratrod63.
meatmonkey, the SSD kit mainly adds a lower ratio for crawling but the high end ratio is just a touch faster as well. Probably not enough to notice (pretty small difference) but it is a taller ratio.. From what I understand the recommended servo torque is around 80oz/in but someone please correct me if I am wrong.
I am going to run a MMP/Tekin Pro4 3300kv combination which is sensored so the 2 speed transmission is probably not really necessary, but I do think that it will be fun and the increase in resolution while crawling due to the low gearing cannot hurt.
meatmonkey, the SSD kit mainly adds a lower ratio for crawling but the high end ratio is just a touch faster as well. Probably not enough to notice (pretty small difference) but it is a taller ratio.. From what I understand the recommended servo torque is around 80oz/in but someone please correct me if I am wrong.
I am going to run a MMP/Tekin Pro4 3300kv combination which is sensored so the 2 speed transmission is probably not really necessary, but I do think that it will be fun and the increase in resolution while crawling due to the low gearing cannot hurt.
ratrod63
Rock Stacker
Here is a couple pics of the servo install.
lcbsc
Pebble Pounder
Quick question about 2 speed RR10 rigs...is it better to install a high torque/high turn/slower speed motor to get more speed with the higher gear? Or a high speed/less torque/lower turn motor to use the low gear for crawling? Or is it somewhere in between? This will be my first 2 speed rig and would like to have some good top end but also be able to crawl really good too...
84yoda
I wanna be Dave
540 or 550 can, sensored brushless 3100-3500kv on 3s is what your looking for. Plenty of top end, will crawl good but having 2 speed will make that even better.
xmikedentx
Rock Stacker
Newb question here.... Does the stock RR10 controller/radio allow for the second servo operation? Or do I need to get a new controller?
Thanks!
Thanks!
YeeP
Rock Stacker
I like the idea of a 2 speed purely for the lower gear, but I must say that it is a tough decision to make unless I can find a 5 channel radio. In my instance, I want rear steer, and I would like to have a servo winch. I think gearing down as much as possible and running something like MMP to control that slow speed torque the way I want it to will get me going as slow as I need. Maybe a motor in the 5000kv range to give me some more top end when I need it.
I dunno, just talking here. Really trying to convince myself that I should not install the 2 speed.
Can anyone argue against those ideas? I just need to understand both sides of the spectrum more. :shock:
I dunno, just talking here. Really trying to convince myself that I should not install the 2 speed.
Can anyone argue against those ideas? I just need to understand both sides of the spectrum more. :shock:
SSD 2nd gear is 1:1 ratio. Axial is 1:1.08 I think. Low gears are the same I think.
Any standard servo should work. Just set the endpoints just like the Twin Hammers.
There is a ton of room around the shift servo, the interior is way above it.
From Axial's description:
Gearing wise, first gear ends up a being a 2:1 reduction intended for slow technical crawls while the Hi Gear (28T) gear is based off the stock 1.08:1 ratio and Hi Gear Option (26T) increases top speed with a 0.93:1 ratio.
The hi gear option might be good for those wanting more speed out of the 35t brushed setup.
I have the Axial kit that I got for my Yeti, but I am planning on installing it in the Bomber now.
Gearing wise, first gear ends up a being a 2:1 reduction intended for slow technical crawls while the Hi Gear (28T) gear is based off the stock 1.08:1 ratio and Hi Gear Option (26T) increases top speed with a 0.93:1 ratio.
The hi gear option might be good for those wanting more speed out of the 35t brushed setup.
I have the Axial kit that I got for my Yeti, but I am planning on installing it in the Bomber now.
YeeP
Rock Stacker
Totally makes sense to me, thanks for the example.
