Compact 6-Speed and Reverse Gearbox

Built by Alan Wenbourne in March 2007

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A model of the late Tony Bolton’s excellent 6-speed and reverse, all pinion compact gearbox, shortened by 1” by using narrow face gears.

Also added are the shift rails, detent controls, gear shift mechanism and double ‘H’ pattern gate. A new diaphgram clutch and release pedal and made-up propeller shaft Hookes joints driving a Torsen type limited slip differential. One axle output is a fully floating 4:1 planetary reduction hub design incorporating large axle parts.

  • New design of diaphragm clutch.
    • Release pedal mechanism.
  • Made-up propshaft Hookes joints.
  • Torsen type 1 traction control differential.
    • Contrate (crownwheel) and pinion.
  • Fully floating geared hub.
    • 4:1 reduction planetary gearing.
    • Large axle supporting shaft.
    • Small axle driving shaft.

Read an in-depth article about this model.

Comments

On 22 June 2007 Rajshekhar Dass wrote:

Mr. Alan Wenbourne, this is fantastic work. Is this a constant or synchromesh gearbox, and for your DSG how did you make dog-clutches? Even I have made an DCT gearbox, a completely new design, but it isn’t as good as yours.

On 24 September 2007 Norrie Steed wrote:

This looks superb! Are there plans available for the gearbox?

On 30 December 2009 Mg++ wrote:

Marvelous. Just Marvelous. I agree, please transmit your knowledge — give us plans!

On 3 January 2013 Ramon wrote:

Hi, It as been asked of you before, but do you have any detailed plans to build the gearbox? Regards, Ramon.

On 19 April 2013 Nathan wrote:

Hello there! Those compact gearboxes are such and amazing kind of work! ! Do you sell then? If so, how much would it be for a Compact 6 speed with the clutch? Thanks

On 4 February 2015 Maurice Hardy wrote:

Hi Alan. I am in the process of trying to construct the compact 6 speed gearbox. I see in forums you have been asked about more detailed plans/parts lists. Would you have any available please? I have built another gearbox of yours, the ravigneaux planetary transmission, with great success.

On 3 January 2016 Chris Morse wrote:

Hi, the gearbox is amazing. Do you do gearbox for sale or plans /part list please? Regards, Chris Morse.

On 13 June 2016 Honori Pla wrote:

Hello. I am very interested in finding the instructions to set up your gearbox. I also want to congratulate for all yours meccano models. Sincerely, Honori Pla.

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