HobbyWing Axe 2300kv in SCX10 ii RTR with pictures

[Kitchen]

Update: I contacted Robinson racing directly and they told me the RRP#1546 will work with the SCX10 ii RTR, I'm just looking for any input on pinion gears if anybody has any insight on that

I recently upgraded my SCX10 ii RTR with a HobbyWing Axe 2300kv and the Axe controller. I mainly bought this combo for the "FOC", this is where the controller regulates the rpm's of the motor to stay consistent when going over obstacles. I haven't upgraded anything in my Trans and that caused problems relatively quickly with a brushed motor. My Spur gear needs an upgrade and I would also like to get a lower count pinion gear. Basically between either my mesh or the Brushed power my Spur is wearing down and I'd like to go metal. I also have excess top speed and I'm looking to gear down my pinion to slow everything down.

From buying the RTR I didn't get some of the experience or knowledge I should have and I have a few questions about my trans,


-Will the Robinson Racing 32P Gen 3 Slipper work for me?
link- https://www.rpphobby.com/product_p/rrp1546.htm
-Is this a cheaper alternative?
link- https://www.rpphobby.com/product_p/rrp1549.htm
-What is the lowest count pinion I can get that works with a 56t spur?
-What are the Teeth count and pitch on the internal 3 gears of the Trans?

From what I understand Robinson Racing is the way to go for Trans gears, I just need to know what to get from them that is going to work with my SCX10 ii RTR and have the lowest count pinion gear.


I can answer questions on the Hobbywing 2300Kv Axe combo if anybody is interested in it.

The controller comes with Bluetooth out of the box and an app on IOS or android to control it with, I change settings while I'm out with this app and it makes it very easy to tune everything the way I want it. The only downside I found is the proprietary cable to connect the motor and controller together, only Hobbywing motors are going to work with Hobbywing controllers with this connector.

Here are a few pictures of the everything https://imgur.com/a/TJa0WrK


If nobody has any input, this is what I think I'm going to go with

-Internal gears

https://www.ebay.com/itm/Axial-Racing-AX31585-AX31585-Gear-Set-48P-28T-52T/123125543314


-Pinion gear+pinion adapter 5m to 1/8

https://www.ebay.com/itm/NEW-Robins...1T-11-Tooth-Black-Steel-32P-8611/332372653648
https://www.ebay.com/itm/NEW-Robinson-Reducer-Sleeve-5mm-1-8-1200/323582654809


Slipper clutch

https://www.ebay.com/itm/Robinson-R...Gen-3-Slipper-Unit-56-Tooth-1546/283452348585

 

[Kitchen]

I ordered and installed everything but now I get a terrible noise from the transmission, here is a video showing the noise

https://www.youtube.com/watch?v=-zPqK0HsVN0

Here is the noise with the cover off

https://www.youtube.com/watch?v=QBczxjDBeFU

And finally this video is showing me checking to make sure the mesh is correct

https://www.youtube.com/watch?v=eNs_xDRWM-o


All these gears were confirmed to work together from a Robinson racing employee, my gear mesh seams to be fine but I still get a terrible noise from the Pinion/Spur gear. The Spur gear also quickly gets very hot, I checked to see if the output shaft was bent but it's still straight. There is no wobble on the Spur or the pinion gears, I watched a youtube assembly video to make sure I was putting the new spur gear on right. All my bearings are still good, the inside of the trans is greased. I tried a 13t pinion gear and the combo was still making this racket. I don't know what else to do or check to get this fixed.

When I pinch the Spur gear with my fingers the noise is much quieter, when going back and forth between forward and reverse it sounds like I'm grinding rocks

 

[soze]

Metal spur will usually be louder than a plastic spur, but it almost sounds like your pinion and spur teeth don't match/mesh well when they come in contact with each other. Kind of like the teeth don't match up.

 

[Kitchen]

I rechecked to make sure I bought the same Pitch angle for both the Pinion and the Spur. Are you able to look at my third video and let me know what you think of the two gears meshing?

 

[bbrigg]

The mesh looks maybe a very little loose but I don't think rattle is from the teeth meshing. Is your pinion grub screw hitting the spur teeth?

Sent from my LG-H870DS using Tapatalk

 

[cul8tr]

Is the pinion set screw hitting the spur gear as it rotates?

 

[Kitchen]

I tightened it up as much as it will let me on the high side of the Spur, nearly the same noise is still present. The set screw is below the spur gear and is not hitting.

 

[lonleycreeper]

Does the input shaft on the trans have any slop at all?

Is the Spur rotating true?

I have had issues with both on a scx 3 gear trans.

I find the axial trans requires some running to get the gears worn in....

 

[Kitchen]

Does the input shaft on the trans have any slop at all?

Is the Spur rotating true?

I have had issues with both on a scx 3 gear trans.

I find the axial trans requires some running to get the gears worn in....

The spur has a very slight high side I marked with a paint pen, but other than that it's spins perfect discontented from the Pinion. The input shaft wont wiggle and spins freely.

I also laid the input shaft on a flat surface and rolled it to check for any inconsistencies.

 

[bbrigg]

The reason that I questioned the grub screw is that the sound seems to be in sync with the motor revolutions. Since the sound was louder with the spur and pinion open it is likely that the sound is not from inside the transmission. One way to make sure that the transmission is okay is to put the input shaft in a drill chuck (slower speed) and spin it by itself.

If the grub screw is okay I would be looking at the grub screw's hole to make sure that no little piece of metal is sticking up from the drilling and tapping process and next if the pinion is "true". If you have another pinion, doesn't matter if it is a different size, I would try that to see if that changed anything. Next check the output shaft of the motor to make sure it is straight.

Sent from my LG-H870DS using Tapatalk

 

[Kitchen]

I ended up getting a cheap Steal Spur/Pinion from China for an 1/8th of the cost. RobinsonRacing wants me to send them back the Spur/Pinion I bought from them but didn't mention covering costs to them or back to me. Now that I swapped out the RobinsonRacing products everything works great with very minimal noise. The Robinson Racing spur alone cost more than the Steel Dust cover, Steel transmission case, 3 inner steel gears, steal spur, steel pinion from China. I now have a complete new steel transmission inside and out for less than one gear from RobinsonRacing. I also tried the Robinsonracing Spur/pinion on the new trans and came up with the same problem, so that means there is some problem with the Pinion/Spur from Robinson.

 

[oceclipse]

I ended up getting a cheap Steal Spur/Pinion from China for an 1/8th of the cost. RobinsonRacing wants me to send them back the Spur/Pinion I bought from them but didn't mention covering costs to them or back to me. Now that I swapped out the RobinsonRacing products everything works great with very minimal noise. The Robinson Racing spur alone cost more than the Steel Dust cover, Steel transmission case, 3 inner steel gears, steal spur, steel pinion from China. I now have a complete new steel transmission inside and out for less than one gear from RobinsonRacing. I also tried the Robinsonracing Spur/pinion on the new trans and came up with the same problem, so that means there is some problem with the Pinion/Spur from Robinson.

Just read this and I was having almost the same issue with a axe 3300 combo on my Gen 8. It was super loud when I paired stock hobbywing 12t pinion with 45t spur gear (from robinson racing). Do you mind sharing the steel pinion/spur info that you got? TIA