Senton Help me upgrade my Senton 3S for sand

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Thanks for the pic Yonic! Do you find it rubs against the spur too much like that? I tried it and it definitely rubs a bit.

I wish I could just get a smaller spur and pinion gear for a little extra clearance. Would be easy to tape up then.
 
Ok, small detail i forgot. I stick a small piece of regular tape (the opaque one) on the other side so the spur won’t rub against the glue.

And I stick the gorilla tape so the part over the spur rather loose, so it will rub less.

All the times I removed the tape the inside was still intact, so it seems fine.
 
Well I got the 15T pinion on, and got the power module sealed up with 2 sided tape. We t to try it out and it hit LVC after 7 minutes of running, with a 3 min break in the middle. I already had the BLX100 replaced by my LHS because it was doing this. I can't believe this is still not working. This thing has been an unreliable POS. I guess I will have to call them and see if they want to replace it. Even if they do it's probably on back order, and will take forever to get. I really don't want to mess with another BLX100. Sigh... :cry:
 
Thank you @Camaroboy383

Just put some double sided tape in the typhon. Used this kind and it worked well. I cut the squares into smaller pieces to reduce how much overhang there was.

20200411_212702.jpg
 
Jasonkw said:
Well I got the 15T pinion on, and got the power module sealed up with 2 sided tape. We t to try it out and it hit LVC after 7 minutes of running, with a 3 min break in the middle. I already had the BLX100 replaced by my LHS because it was doing this. I can't believe this is still not working. This thing has been an unreliable POS. I guess I will have to call them and see if they want to replace it. Even if they do it's probably on back order, and will take forever to get. I really don't want to mess with another BLX100. Sigh... :cry:
Click to expand...
Call Horizon. They have an updated firmware they are flashing that supposedly fixes it.
 
Jasonkw said:
I called them this morning. The rep I talked to didn't mention anything about flashing them. They had them in stock and are sending out a new one. Hopefully this one works.
Click to expand...
Thanks for the update. They must have received a shipment of new units. Let us know how it runs when you get it.
 
jondilly1974 said:
Thanks for the update. They must have received a shipment of new units. Let us know how it runs when you get it.
Click to expand...

FedEx was a little slow, and it didn't come until yesterday. I'm now running the 15T and motor fan. I got a 17 min run yesterday, and a 16 min run today. Both times running 3S, on beach sand, and running hard with no significant breaks. Voltage per cell was ~3.5v after the runs. Motor was kind of hot at the end yesterday, pretty hot today (87* ambient). No temp shutdown though.

I'm a little gun shy about calling the ESC issue fixed just yet, as I did that before and got burned, but it is certainly a good sign. Had fun running it today for the first time in a while. A few more good runs and I'm ready to move on and make this thing better (y)
 
I've gotten 5 good runs in, so I think the ESC is working. I decided it was time for the pivot ball and bearing swap, and check out how the seal did. It got a little of the sticky stuff from the tape in there, but no sand! I think I just didn't trim it as nice as I should have. No sand in there after 5 runs is great, so happy with that. This is how I'm going to trim it from now on. I line up the tape on the front side of the PM, then lay the extra over the rear. Then cut through the tape at the very edge of the plastic. I will run it a bunch more like this and report how it does.

IMG_20200426_114123.jpg



I switched out all the bearings except the ones in the diffs. All bearings (stock shielded) looked fine. All I did to them previously was put a little marine grease on the outside to stop the sand from getting in. I thought some would at least be gritty, but no. It seems the ones in the power module really take a beating without the PM being sealed. They were literally getting locked in minutes.

I got a run in after adding the steering bearings, and HR pivot balls. I can't believe how much better it steers now! I thought it would help a bit, but it really is noticeable. Way more precise. It seems like the gyro works much better. Can't wait to get the 25KG servo and 124 servo saver I ordered.

I also cleaned up and topped off the shocks during the rebuild. Man, I should have done that sooner. They were all pretty low, and I don't think they were leaking. I always thought the shocks seemed weak., and I think they were low from the factory. You could drop it from a foot off the ground and it would easily bottom out. Now that I have them full they are way better. They don't bottom out so easily and you could see them doing a lot better over bumps.

Next up, I got a body and some MT tires on order. I also need to see if I can cut up a 2 liter bottle and put it under the dust cover so the sand doesn't "pool" on top of it. The motor is still getting pretty hot after a run, but not enough to trigger the thermal. Bigger tires may help (with appropriate gearing), as 1.8" wide tires really have to spin a lot to get it moving, and tend to dig into the sand.
 
Jasonkw said:
I've gotten 5 good runs in, so I think the ESC is working. I decided it was time for the pivot ball and bearing swap, and check out how the seal did. It got a little of the sticky stuff from the tape in there, but no sand! I think I just didn't trim it as nice as I should have. No sand in there after 5 runs is great, so happy with that. This is how I'm going to trim it from now on. I line up the tape on the front side of the PM, then lay the extra over the rear. Then cut through the tape at the very edge of the plastic. I will run it a bunch more like this and report how it does.

View attachment 77017


I switched out all the bearings except the ones in the diffs. All bearings (stock shielded) looked fine. All I did to them previously was put a little marine grease on the outside to stop the sand from getting in. I thought some would at least be gritty, but no. It seems the ones in the power module really take a beating without the PM being sealed. They were literally getting locked in minutes.

I got a run in after adding the steering bearings, and HR pivot balls. I can't believe how much better it steers now! I thought it would help a bit, but it really is noticeable. Way more precise. It seems like the gyro works much better. Can't wait to get the 25KG servo and 124 servo saver I ordered.

I also cleaned up and topped off the shocks during the rebuild. Man, I should have done that sooner. They were all pretty low, and I don't think they were leaking. I always thought the shocks seemed weak., and I think they were low from the factory. You could drop it from a foot off the ground and it would easily bottom out. Now that I have them full they are way better. They don't bottom out so easily and you could see them doing a lot better over bumps.

Next up, I got a body and some MT tires on order. I also need to see if I can cut up a 2 liter bottle and put it under the dust cover so the sand doesn't "pool" on top of it. The motor is still getting pretty hot after a run, but not enough to trigger the thermal. Bigger tires may help (with appropriate gearing), as 1.8" wide tires really have to spin a lot to get it moving, and tend to dig into the sand.
Click to expand...
GREAT IDEA>
My phone died, i'll send pics soon.
 

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MrJoe said:
Jason, with the double sided tape are you able to remove your power module easily or does it stick to the chassis?

I've just blown the motor on my Senton, no doubt for the same reason. I have very sandy soil where I live and loads of it gets into the power module.
Click to expand...
You leave the red tape on one side so it doesn’t stick.
 
I tried that but i couldn't get my motor back in place to mount it down. My track is very dirty as well. I just went to Harbor freight and got the lube called "Super Lube". It's a multi purpose synthetic grease. I put it all in and under the gear box. It kinda seals out the dirt and debris, only allowing the dirt around the edges and not inside the gears or motor gear box. Yes, it collects dirt on the outside but that's where the dirt stays. It is also water proof and food grade grease. it comes in a small 6 inch round plastic gray tube like toothpaste. part number 21030 and the bar code is 8235321030. It is awesome. if you Text me I can send you a picture of it 321-578-4487.
 
Cheers... Will try the tape first then grease if tape doesn't work ?
 
I imagine single sided foam tape would work as well. Going to try that as I'm scared the red plastic might work it's way off and then I'll have a stuck motor housing lol
 
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