TM-2 Spur gear
 

Its been widely reported on the various RC forums regarding the trouble some people are having with the TM-2 spurs. I have seen a few of the off-white kevlar spurs and after doing some checks there are three actual problems.

For a 48dp 85T spur the diameter is incorrect, this is the reason why the teeth are miss shaped and the spur is noisy and wearing so badly.

The hole in the centre of the spur should be 5mm to centre correctly on the shaft rather than 8mm and why some people are resorting to having to fit bearings and shims to get it to run correctly.

The slot is not required for the TM-2 and can be a problem locking up the spur on the slipper plate pin and stripping teeth if assembled incorrectly.

I am currently having some spurs made which will be the correct diameter for a 48dp 85T spur and that will have the correct size centre 5mm hole with a recess on each side for the slipper plate shoulders to sit into and without the slot. I should have samples by the weekend so I will give you an update on how they run and their availability once they have been tested.

Great idea. What material are you using?

Acetol:thumbsup:

Interesting, I've been having spur issues with my T4, if I brake hard on a high grip surface I kill the spur gear. I'm on spur gear number 4 at the moment, I thought it was just down to the way I'm building it, may be not.

Saying that, I’m still running the kit spur on my TM2 and have had no issues. It runs and sounds smooth with no signs of real wear, may be I’m lucky.

I bet it strips now I’ve said that..

I’ll be interested when you release them.

My spur gear stripped straight away,the solution was to use an RW duango 210 spur and durango slipper pads and i got a mate with a lathe to turn the slipper hubs down to 30mm diameter to fit.Reassemble as instructions job done,and it is very quiet.:lol:

I know a bunch of people did that whole mod as done by Tom (T-Bone) but getting somone to turn down the diameter of the slipper plates isn't so easy so I was trying to come up with a fool proof solution thats a direct replacement without having to change this or by that, just a new spur gear.:)

Sounds very good :thumbsup: look forward to seeing one :)

Sounds good to me, I want to try and keep the car as standard as posible so this may be a good solution.

thought I read somewhere that associated spurs and pads fit. Not sure if it's a direct fit or if any modification is needed.

Associated spurs need the centre hole drilling out to 8mm

They do fit I have one on my tm2 but you have to drill the centre hole out which is a little risky if you haven't got a lathe but mine worked out ok and has been fine

Like you.
Hope to see them quikly

In my opinion there is nothing wrong with the standard one apart from the kit supplied gear being to soft.. I upgraded mine to the Black one and its been fine.
The car as a whole seems excellent :)

Good choice.

There has been a mixed fortunes with the kit spur gear and I considering the TM-2 sold so many so quickly and with such a small amount of development time there was bound to be some teething problems highlighted. From everyone I've spoken to and read about the TM-2 is an excellent car and people are already getting great results, mine is awesome, just a shame about the spur issues.

I have been in touch with some of the Absima Team drivers who have been running the prototype cars for some time and they have had to find an alternative to the kit spur which has meant some modifications for what is currently available. Some owners of the TM-2 have had NO problems at all, some have had nothing but problems and some just haven't been able to even get a hold of the black plastic spur gears.

I hope this new spur will solve the problems and then the thread can close. If you've had a problem and dont want to have to modify the slipper assembly or buy another manufactures spurs and pads this will solve the problem for you.

Will report back soon.

So you can fit it but just keeping sitting on the table to watch it but not race it:woot:

hy,
cool that also other carry about us and bring some own stuff for our cars..it shows that people are interessted in our chassis:) --

please be shure to take a look at the post number 291 :
http://www.oople.com/forums/showthre...114774&page=15
this is a easy fix for all the original slipper and its done very fast without milling etc :)

regards Tom

Hi-I've just done Tom's mod to the spur gear but decided to just throw away the pin altogether...Assembles fine & feels ok, Am I being stupid or will it work!!!!?-, Cheers, Gord...

Er.........I hope you can find it again after chucking it because as far as I can work out you'll only have drive on one of the slipper plates

Hi John-Jono has already torn me apart over this!!-OK, I'm stupid!-seemed like a good idea at the time..
Pin is somewhere behind the settee, will start lookin....Cheers, Gord...

Nah leave the pin out Gordon, I'll beat Ian at the next west bridgeford then! :woot::thumbsup:

Tested new spur gear today
 

New 85T spur gears tested today.
5mm centre hole so no chance of misalignment.
Ran really smooth and almost silent.
Will post picture on the car tomorrow but here it is during assembly.
Uses the standard Team C slipper pads and doesnt need any modifications the slipper assembly. :thumbsup:

Did we can continue to use a ball bearing Inside?

When will these be available also where from/price etc they look superb great dude

No, because the hole in that new spur is the same size as the shaft, so no need for the bearing

As John said no need for the bearing now or any other modification as its a direct replacement but with the 5mm centre in fits directly onto the slipper shaft and runs true.
I will confirm price availability etc in a couple of days.

Edit - found answer in post above

looking forward to purchasing a couple of these. my TM2 hasn't seen any track yet because i don't want to drive it for only 5min until the spur shats the bed. I have the TeamC black ones and some bearings on order but I would prefer these ones. any idea on how long before these go in to production?

The TC 85T spur fitted to the TM-2.

A few more tests and check to be done then I can let you know price & availability.

Looks really good! I would definitely be interested! What slipper pads do you use?

Standard pads I believe

As John said fits the standard pads, no modifications required. :thumbsup:

Silly question but will these fit the 4wd buggies as well?

I think I already know the answer but just want to clarify. :D

Look good though dude.

Yes:)

Did the pads arrive ok Paul?

I don't believe it will fix all the problems with just an other gear.
I want to see it first run on an car...
The gear problem is just one problem, the slipperpads are an other.

I know that Stephen from Teamc also works on an solution to fix those items.
The slipperpads are very difficult to tune now. Or the slipper runs through it or the slipper is to tight and that is not an problem what can fixed by an other gear in mine opinion.

The new spur gear is just to resolve the misalignment and noise issues with the kit spur gears without having to do a bunch of modifications to the slipper assembly or buy extra parts to make it work. I ran the new gear all weekend and everything was good, perfect alignment and noise free.

My slipper is working good but I do think a thicker pad and stiffer spring would offer better adjustment of the slipper assembly. My spring was to springy when first assembled so I squeezed it together a little in a vice and it certainly seems more consistant now.

Its all a step in the right direction.

Thats good to hear DrPaul, i may consider this spur gear..

Just a short update on the 85t spur.

We have made a minor change to the gear so you can get better slipper adjustment, it will be tested this weekend and they should be available by the end of next week. This is a Acetol machine cut gear that runs true, quiet and by the nature of the Acetol material is very hard wearing so the teeth keep their shape and do not wear.

To confirm, these spurs are a direct UPGRADE for the kit spur, there is no slot as its not required and there is no need for extra bearings as the spur has a 5mm centre hole to run perfectly on the centre of the slipper. They do NOT need any modification to the slipper assembly and they fit the standard slipper pads perfectly.

They will also fit the 4wd cars.

Happy trouble free racing :thumbsup:

Hi there is there any chance in the near future that you could do these spur gears for the tm2 to fit AE slipper pads as they seem to offer better adjustment peramiters and seem to be better quality than team c ones, john333 has adapteda AE 87T spur to fit my tms but he said it was very tricky to do but it has worked faultlessly since but your spur gears adapted to vfit AE slipper pads would be the perfect solution in my opinion of course

Regards
Deano