rrTV-PHOTO   New HD TV
HOME   rrTV-PHOTO   GALLERIES   MY GALLERY   HELP-FAQ
myHOME PM pmRR MEMBERS 718 ONLINE 42 EVENTS SEARCH REGISTER  START HERE
 
1 page688 viewsPOST REPLY
Futaba-RC . Next D . Fast Lad Performance

.
.
e-Hirobo SRB Quark - Lepton - XRB Coaxial > Larger and stronger main gear for Lepton ?
 
 
autoair
Heliman
Location: Essex United Kingdom

Hi all,
I have been developing the powertrain on my 3dx-500 for use with 6s a123 and have so far made 110t and 120t main gears, the next stage is to make a small batch of 130t mains, these gears are 6mm thick and they are machine cut delrin, If anyone would like to try one on a Lepton drop me a PM. These will be 79.2 mm od. so you would need to modify the frame to get it to fit.




04-09-2008 10:29 AM
 
 
Fernando
Senior Heliman
Location: Madrid

could you pls explain better what requires to be modified??
04-12-2008 08:31 PM
 
 
eltavito
Heliman
Location: warner robins, GA

I am definitely interested! Can you post the ODs of the different gears? I would like to know if the 110t gear can fit with no mod to the frames.

This opens up so many options!

Thanks,

Occy
04-12-2008 10:12 PM
 
 
Tail_BoomStrike
Veteran
Location: Virginia Beach

I'm kinda' interested in 110T also...... The thing about the Lepton is that for bigger diameter main gear, there's possibility it may rub on the canopy as well......
04-13-2008 02:03 AM
 
 
owde
Heliman
Location: Darling Downs

I'm interested in seeing how you made and cut them etc. I saw the pics when you first posted and would really like to see how the Delrin is machined. Is the machining of them why they cost so much to replace...
04-13-2008 05:05 AM
 
 
autoair
Heliman
Location: Essex United Kingdom

I have been making limited quantities of machine cut Delrin 3dx/hdx 500 gears for myself and others on RCgroups for a while now, I was interested to see if there was any requirement from Lepton users. I have just finished a batch of 130t which are now all sold. I have 2 110t left from a previous batch,the price for which would be $16each + $6 shipping worldwide. The picture below shows a 120t gear fitted to my 3dx500 with an 18t pinion, the modifications required were to slot the motor mount holes and file the frames to accept the larger gear.
The 110t gear is 67.2 mm OD, the 120t gear is 73.2 mm OD and the 130t gear is 79.2 mm od. If you either post here or PM me with your required gear size I will consider making further batches of gears.

04-14-2008 12:13 PM
 
 
uffe40
Heliman
Location: Grillby SWEDEN

Pm sent
Uffe
04-14-2008 02:33 PM
 
 
eltavito
Heliman
Location: warner robins, GA

PM sent. I will buy several if autoair makes gears with a 60.5 mm OD.
this will allow a wider range of pinions for the lepton.

Occy
04-14-2008 08:06 PM
 
 
autoair
Heliman
Location: Essex United Kingdom

An OD of 60.5 mm would give a 99t gear, this won't help much with higher kV motors but would be much stronger than stock since my gears are 6mm thick and use all of the pinion. I would still advise a minimum of 110t however.
04-15-2008 08:40 AM
 
 
eltavito
Heliman
Location: warner robins, GA

Just the larger diameter would help because the trex500 pinions that are lower than 18t would be able to reach the gear. Currently the smallest pinion I can use is an 18t pinion, wich limits the motors I can use to 1000 kv and below.

Occy
04-17-2008 03:15 AM
 
 
1 page688 viewsPOST REPLY
Ace Hobby . Esprit Model . Thunder Power RC

.
.
e-Hirobo SRB Quark - Lepton - XRB Coaxial > Larger and stronger main gear for Lepton ?
  UPDATE SCREEN   PRINT TOPIC Advertisers 

Subscribe to This Topic

Thursday, July 24 - 8:26 pm - Copyright © 2000 - 2008 runryder.com | email | link to rr | runryder needs cookie