Go Back   oOple.com Forums > General > Vintage RC

Reply
 
Thread Tools Display Modes
  #2041  
Old 03-11-2011
Welshy40's Avatar
Welshy40 Welshy40 is offline
Spends too long on oOple ...
 
Join Date: Sep 2006
Location: .
Posts: 4,772
Default

Ive sent my drawings and am getting my first proto made for the rear gearbox. I will post more info soon.
__________________
www.kamtec.co.uk
www.fibre-lyte.co.uk
answer-rc.com/uk/en/
Answer UK team driver
Designer of the Lazer ZX/ZXR carbon fibre tub chassis
Designer of the Lazer ZXRS
Reply With Quote
  #2042  
Old 05-11-2011
Welshy40's Avatar
Welshy40 Welshy40 is offline
Spends too long on oOple ...
 
Join Date: Sep 2006
Location: .
Posts: 4,772
Default

Ok here goes, the belts that are being sold on ebay are only good for five five minute races before the rear belt obliterates. We do need to find a supplier that can make an exact copy. Other than that my car goes rather well and just needs a bit of work on the front end and its done.
__________________
www.kamtec.co.uk
www.fibre-lyte.co.uk
answer-rc.com/uk/en/
Answer UK team driver
Designer of the Lazer ZX/ZXR carbon fibre tub chassis
Designer of the Lazer ZXRS
Reply With Quote
  #2043  
Old 05-11-2011
rondoolaa's Avatar
rondoolaa rondoolaa is offline
Mad Member
 
Join Date: May 2010
Location: devon uk
Posts: 1,011
Default

Quote:
Originally Posted by Welshy40 View Post
Ok here goes, the belts that are being sold on ebay are only good for five five minute races before the rear belt obliterates.
do you mean the tough racing ones ?

i purchased 4 of each of them if you do

and is that running on a 5.5, a

do you personaly think they would last longer with say a 10.5 or 17.5 or even a brushed
Reply With Quote
  #2044  
Old 05-11-2011
Welshy40's Avatar
Welshy40 Welshy40 is offline
Spends too long on oOple ...
 
Join Date: Sep 2006
Location: .
Posts: 4,772
Default

Quote:
Originally Posted by rondoolaa View Post
do you mean the tough racing ones ?

i purchased 4 of each of them if you do

and is that running on a 5.5, a

do you personaly think they would last longer with say a 10.5 or 17.5 or even a brushed
Tough racing, yes. I think the problem lies with my zx slipper and is probably why i got thru two belts in five batt packs. Make sure you set the slipper correctly so you have a fraction of slip. I need to address the slipper as we need the same spring adjuster as the hyper clutch or like the b4 where the adjustment sticks and doesnt get looser.

Id say a 7.5 or even 8 should be good but a 5 only once we have come up with a resolution for a new slipper.
__________________
www.kamtec.co.uk
www.fibre-lyte.co.uk
answer-rc.com/uk/en/
Answer UK team driver
Designer of the Lazer ZX/ZXR carbon fibre tub chassis
Designer of the Lazer ZXRS
Reply With Quote
  #2045  
Old 06-11-2011
oosh123's Avatar
oosh123 oosh123 is offline
Senior Member
 
Join Date: Sep 2010
Posts: 336
Default

Quote:
Originally Posted by Welshy40 View Post
Ok here goes, the belts that are being sold on ebay are only good for five five minute races before the rear belt obliterates. We do need to find a supplier that can make an exact copy. Other than that my car goes rather well and just needs a bit of work on the front end and its done.
How does it obliterates?? do you have a picture of it?
Reply With Quote
  #2046  
Old 06-11-2011
Welshy40's Avatar
Welshy40 Welshy40 is offline
Spends too long on oOple ...
 
Join Date: Sep 2006
Location: .
Posts: 4,772
Default

Quote:
Originally Posted by oosh123 View Post
How does it obliterates?? do you have a picture of it?
No pictures but the belt basically broke the bonds and turned into threads so rather dissapointed. I had the slipper running to and then when i tightend it slightly the car which runs silently other than the motor (you dont hear the gear mesh either) and sounded like something was binding, sounded like ujs but was the belt shredding into fluff.
__________________
www.kamtec.co.uk
www.fibre-lyte.co.uk
answer-rc.com/uk/en/
Answer UK team driver
Designer of the Lazer ZX/ZXR carbon fibre tub chassis
Designer of the Lazer ZXRS
Reply With Quote
  #2047  
Old 06-11-2011
oosh123's Avatar
oosh123 oosh123 is offline
Senior Member
 
Join Date: Sep 2010
Posts: 336
Default

Quote:
Originally Posted by Welshy40 View Post
No pictures but the belt basically broke the bonds and turned into threads so rather dissapointed. I had the slipper running to and then when i tightend it slightly the car which runs silently other than the motor (you dont hear the gear mesh either) and sounded like something was binding, sounded like ujs but was the belt shredding into fluff.
I suspect that the teeth are still good because it's brand new. The only thing that will cost this breakage is that the cords (threads) inside the belt is nylon. If its kevlar or steel, I think it will stand the force.
Reply With Quote
  #2048  
Old 07-11-2011
Welshy40's Avatar
Welshy40 Welshy40 is offline
Spends too long on oOple ...
 
Join Date: Sep 2006
Location: .
Posts: 4,772
Default

Quote:
Originally Posted by oosh123 View Post
I suspect that the teeth are still good because it's brand new. The only thing that will cost this breakage is that the cords (threads) inside the belt is nylon. If its kevlar or steel, I think it will stand the force.
Yes i agree. I also changed the bearings in the gearbox just to be on the safe side.
__________________
www.kamtec.co.uk
www.fibre-lyte.co.uk
answer-rc.com/uk/en/
Answer UK team driver
Designer of the Lazer ZX/ZXR carbon fibre tub chassis
Designer of the Lazer ZXRS
Reply With Quote
  #2049  
Old 07-11-2011
oosh123's Avatar
oosh123 oosh123 is offline
Senior Member
 
Join Date: Sep 2010
Posts: 336
Default Front gear box

I have locked down the design for the front gear box.

It looks not as strong, but I have ran it through a FEA program, it is actually very strong after it's is mounted and squared on the chassis and front tower mount.

I am going to get it quoted and try to make a sample.



BTW, it does looks like the head of a cow.

Bearings will need to be change to flanged bearings.
Reply With Quote
  #2050  
Old 07-11-2011
Welshy40's Avatar
Welshy40 Welshy40 is offline
Spends too long on oOple ...
 
Join Date: Sep 2006
Location: .
Posts: 4,772
Default

Quote:
Originally Posted by oosh123 View Post
I have locked down the design for the front gear box.

It looks not as strong, but I have ran it through a FEA program, it is actually very strong after it's is mounted and squared on the chassis and front tower mount.

I am going to get it quoted and try to make a sample.



BTW, it does looks like the head of a cow.

Bearings will need to be change to flanged bearings.
Bearings may be an issue, what about a washer with a screw going thru with a lip, so the small washer sits flush against the CF and the lip is logged against the bearing edge stopping it going out? Have a look at the ZX-S manual on the main Japan Kyosho.com and you can see for yourself as thats what I use on my ZX-S.

Looks good, seems that my original cut away the rear and sides of the front gearbox has been picked up and yes would be very strong as the plastic sides are strong on my car.

Hurry up fibrelyte with my cad drawing on jpeg so I can post it as well.
__________________
www.kamtec.co.uk
www.fibre-lyte.co.uk
answer-rc.com/uk/en/
Answer UK team driver
Designer of the Lazer ZX/ZXR carbon fibre tub chassis
Designer of the Lazer ZXRS
Reply With Quote
  #2051  
Old 07-11-2011
Welshy40's Avatar
Welshy40 Welshy40 is offline
Spends too long on oOple ...
 
Join Date: Sep 2006
Location: .
Posts: 4,772
Default

Here it is. This is my first design, I have not yet got around to starting on the rear gearbox mount yet but I already have an idea. There are only two plates on here so the main one with both together has not worked out how it should be but seeing as you can see both plates you can see how the one small item should be
Attached Images
File Type: jpg zxr cf rear gearbox braces.jpg (5.5 KB, 41 views)
__________________
www.kamtec.co.uk
www.fibre-lyte.co.uk
answer-rc.com/uk/en/
Answer UK team driver
Designer of the Lazer ZX/ZXR carbon fibre tub chassis
Designer of the Lazer ZXRS
Reply With Quote
  #2052  
Old 07-11-2011
oosh123's Avatar
oosh123 oosh123 is offline
Senior Member
 
Join Date: Sep 2010
Posts: 336
Default

Quote:
Originally Posted by Welshy40 View Post
Bearings may be an issue, what about a washer with a screw going thru with a lip, so the small washer sits flush against the CF and the lip is logged against the bearing edge stopping it going out? Have a look at the ZX-S manual on the main Japan Kyosho.com and you can see for yourself as thats what I use on my ZX-S.

Looks good, seems that my original cut away the rear and sides of the front gearbox has been picked up and yes would be very strong as the plastic sides are strong on my car.

Hurry up fibrelyte with my cad drawing on jpeg so I can post it as well.
At the very end of my post, I stated that the bearings need to be changed to flanged bearings.

The whole gear box (now mount) is designed using a flanged bearing. There will be only 0.2-0.4mm for the diff to move side by side.

I believe this would be an easier way to solve this problem, as less parts on this gear mount, the less cost it will be.
Reply With Quote
  #2053  
Old 08-11-2011
Welshy40's Avatar
Welshy40 Welshy40 is offline
Spends too long on oOple ...
 
Join Date: Sep 2006
Location: .
Posts: 4,772
Default

Quote:
Originally Posted by oosh123 View Post
At the very end of my post, I stated that the bearings need to be changed to flanged bearings.

The whole gear box (now mount) is designed using a flanged bearing. There will be only 0.2-0.4mm for the diff to move side by side.

I believe this would be an easier way to solve this problem, as less parts on this gear mount, the less cost it will be.
Great idea, didnt really read it properly (Doh!!!) and your idea should resolve a lot of issues doing it that way. Cant wait to see the real thing.

Pity I am no good at 3D cad but intend to get a proto made of mine within a week or two and will post some proper pictures of the made CF gearbox. If you have any input towards this by all means let me know.
__________________
www.kamtec.co.uk
www.fibre-lyte.co.uk
answer-rc.com/uk/en/
Answer UK team driver
Designer of the Lazer ZX/ZXR carbon fibre tub chassis
Designer of the Lazer ZXRS
Reply With Quote
  #2054  
Old 08-11-2011
oosh123's Avatar
oosh123 oosh123 is offline
Senior Member
 
Join Date: Sep 2010
Posts: 336
Default

Quote:
Originally Posted by Welshy40 View Post
Great idea, didnt really read it properly (Doh!!!) and your idea should resolve a lot of issues doing it that way. Cant wait to see the real thing.

Pity I am no good at 3D cad but intend to get a proto made of mine within a week or two and will post some proper pictures of the made CF gearbox. If you have any input towards this by all means let me know.
I am guessing you got all your dimensions correct, because on my lazer zx, there is another extra 6-8mm material after the gear box. it's for the shock tower mount.

Either than that, I think you have a good design there, incorporating the lazer zx-s's design.

My original concept was about the same. But omitting the bottom plastic mounting and extend the cf piece all the way to the bottom. and the diff will be held using flanged bearings. After that, 2 aluminum mounting brackets will be used to connect the gear box, the chassis and the rear pivot block.

Spacers! you need to anodizing them blue!!
Reply With Quote
  #2055  
Old 08-11-2011
oosh123's Avatar
oosh123 oosh123 is offline
Senior Member
 
Join Date: Sep 2010
Posts: 336
Default

Welshy,

Do you think it's a good idea to produce the arms with aluminum?

Or is the current plastic set be okay?
Reply With Quote
  #2056  
Old 08-11-2011
oosh123's Avatar
oosh123 oosh123 is offline
Senior Member
 
Join Date: Sep 2010
Posts: 336
Default

OH!! I got a reply for a supplier that can manufacture the small pulley (LA-11) out of aluminum 6061 or 7075.

I might get the 6061 and hard anodize them if they are cheaper than just 7075.

Will update you guys on that later on.
Reply With Quote
  #2057  
Old 08-11-2011
isobarik's Avatar
isobarik isobarik is offline
Mad Member
 
Join Date: Sep 2008
Location: Sweden
Posts: 1,576
Default

Quote:
Originally Posted by oosh123 View Post
I have locked down the design for the front gear box.

It looks not as strong, but I have ran it through a FEA program, it is actually very strong after it's is mounted and squared on the chassis and front tower mount.

I am going to get it quoted and try to make a sample.



BTW, it does looks like the head of a cow.

Bearings will need to be change to flanged bearings.

Yes it does ... but a beutiful cow ......


mvh Isobarik
Reply With Quote
  #2058  
Old 08-11-2011
oosh123's Avatar
oosh123 oosh123 is offline
Senior Member
 
Join Date: Sep 2010
Posts: 336
Default

I have actually finish designing the pivot blocks that uses the new lazer zx-5's bushings (LAW32) and the TF-018.



IMO, I believe that rubbing dissimiliar metal together is not a good idea. There will be more wear.

With the use of the delrin bushing (LAW-32), I think it will be more smoother.

I am not sure if they will be popular. If not, I will just produce only a few sets
Reply With Quote
  #2059  
Old 08-11-2011
Welshy40's Avatar
Welshy40 Welshy40 is offline
Spends too long on oOple ...
 
Join Date: Sep 2006
Location: .
Posts: 4,772
Default

Quote:
Originally Posted by oosh123 View Post
I have actually finish designing the pivot blocks that uses the new lazer zx-5's bushings (LAW32) and the TF-018.



IMO, I believe that rubbing dissimiliar metal together is not a good idea. There will be more wear.

With the use of the delrin bushing (LAW-32), I think it will be more smoother.

I am not sure if they will be popular. If not, I will just produce only a few sets
As you know a good through testing first is needed. Great idea. I like it
__________________
www.kamtec.co.uk
www.fibre-lyte.co.uk
answer-rc.com/uk/en/
Answer UK team driver
Designer of the Lazer ZX/ZXR carbon fibre tub chassis
Designer of the Lazer ZXRS
Reply With Quote
  #2060  
Old 08-11-2011
Welshy40's Avatar
Welshy40 Welshy40 is offline
Spends too long on oOple ...
 
Join Date: Sep 2006
Location: .
Posts: 4,772
Default

Quote:
Originally Posted by oosh123 View Post
Welshy,

Do you think it's a good idea to produce the arms with aluminum?

Or is the current plastic set be okay?
Arms, do you mean wishbones? If yes then the current ones LA26 are the strongest you will ever come across (evan harder than the YZ10) and is very very hard to break. I have only snapped one and that was hitting 35mph into a steel pole.
__________________
www.kamtec.co.uk
www.fibre-lyte.co.uk
answer-rc.com/uk/en/
Answer UK team driver
Designer of the Lazer ZX/ZXR carbon fibre tub chassis
Designer of the Lazer ZXRS
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 10:52 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
oOple.com