3d printed c4.1 gearbox

[ashleyb4]

Something I've been asked to test things are going really well over an hours run time and no problems so far.







Ash

[SLEENAD]

strength?
cost?
fitment for bearings nice and snug?

[ashleyb4]

Cost to be confirmed

Fitting of bearings is really good and idler shafts are nice and tight. The material around the idler shafts has been beefed up. This is only proto 1 I've changed a few little bits for the second one.

As for strength I couldn't snap one in my hand no matter how hard I tried. Ide say easily as strong as the original if not stronger.

Ash

[OldTimer]

You need to try it in warm weather with the motor getting hot, as i found with the 3D printed gearbox on the S2 Evo, is that you get heat soak from the motorplate which travels along the gearbox bolts, and softens the plastic which cause's the idler gear shafts to move then strip the gears.

If your using ABS rather than PLA this should be a bit less of a problem as it has a high softening point.

[ashleyb4]

It is some sort of ABS I've been told the material is used in high temperature applications in electrical equipment.

Ash

[blue_pinky]

Interesting...

What does this printed design add to the car?

[ashleyb4]

You can't buy the original machined gearbox anymore and I know of 4 people who have had the original gearbox fail on them around the idler gears and they have had to buy new cars as the gearbox is unavailable. So someone said they could 3d print it so here we are.

Ash

[rowley]

Originally Posted by ashleyb4

Something I've been asked to test things are going really well over an hours run time and no problems so far.







Ash

What printer did you use to print this?

[Hog]

Out of interest what's the most common cause of the "failure" of the original diff housing?

Is it where the screws for the rear shock tower strip?

[rc_penguin]

I don't mind making them out of alloy. But as said previously in this thread they won't be cheap, around £60 - £70 per box for say a small batch of 10 supplied un-anodised.

[wezzer]

Just to keep you all posted on this issue of the C4.1 gearbox we are in negotiations with the manufacturer of said gearbox and trying to get the minimum order quantity down to a more manageable amount without the gear box costing the earth to supply.
As soon as I have some information I will post it up here or alternatively if you wish to drop me an e-mail I will respond directly.
my e-mail is [email protected]

[Hog]

[Clive Loynes]

Originally Posted by rc_penguin

I don't mind making them out of alloy. But as said previously in this thread they won't be cheap, around £60 - £70 per box for say a small batch of 10 supplied un-anodised.

I would agree with that.

I have been making aluminium gearboxes for the Team-C TC02C car and have come to the conclusion that I need to charge £80.

This box looks a lot simpler and hopefully less expensive. I would be interested in making some if I had one to copy.