Efferman's Custom Parts

[SNIPE]

We need UV joints that dont slip off the axles and that dont crack. I dont know if LEGO will make something, a CV joint is too long and does not have much flex. Also a UV joint with a fixed 3 L axle on one side instead of an axle hole would be cool because it can fit in tight spaces, the 3L axle just goes to the diferential.

Edited January 18, 2015 by SNIPE

[D3K]

We need UV joints that dont slip off the axles and that dont crack.

Maybe one machined out of metal? How much do you think it would cost to have a standard 3L U-joint made that way? Does Shapeways do machining/milling of metal? Made of for example stainless steel, it would be strong enough to withstand a LOT of punishment

Or does anyone on this forum have access to a high end mill or machining center?

[efferman]

Dont forget that you have to assemble the u joints.

Snipe, a crossaxle instead of the crosshole. This i have tried and it is not solid enough

[D3K]

Dont forget that you have to assemble the u joints.

Very true, didn't think that far ahead But do you know how they do their metal work? I know you can order custom jewelry and stuff, but I imagine they are cast in one way or another.. Do you know if they do machining?

[efferman]

They print with metal powder and put the piece after this in an oven. More i dont know.

[oracid]

I am very impressed by the work you do for the Lego community and I thank you.

Currently, the maximum size of the racks is 13M. It would be great is there was a rack of 26 M.

The same as the 64781. Do you think it could be possible to do this rack ?

Thank you in advance for your attention.

Edited January 29, 2015 by oracid

[Dafgek81]

Hello Efferman,

I ment this rim

[Alien]

Hi Efferman

Friend of mine pointed me in the direction of thompson coupling

have you tried doing that with the 3D printing Its a great alternative to U Joints or even CV joints. Just don't know how doable it is. It looks to be a complex mechanism.

CV joints on Wiki has a section and some technical pics of it also of course Google produces tons.

Just a thought I know lots of the trail truck guys would love it.

[SNIPE]

it's the holes in the UV joints that break, the centre bit is fine. some axle holes on lego pieces are quite hard to push an axle in so maybe a UV joint can have this too, though it means having an accurate milling machine.

For example this piece: is harder to push an axle into, and i'm sure ive seen harder pieces as well., the outsites of the UV joint should not be like a double bush but more like the very old red UV joints or the CV joints.

Edited January 30, 2015 by SNIPE

[efferman]

Sorry for not answering, but iam actually on the dark side of the moon. And there is absolutely no internet in next three weeks.

Oracid, theoreticly this is absolutely no problem, unfortunately i have actually only 24 hours at home per week. i will look what i can do.

Dafgek, you are speculating for a rim like this?

alien, the small balls are not successfully printable in lego scale.

Snipe, my heavy duty u joints are like the old red ones

Edited January 31, 2015 by efferman

[Dafgek81]

I mean these type off wheel rims

Edited January 31, 2015 by Dafgek81

[efferman]

for this you can use the 530 rims

100_1460 by efferman, on Flickr

[Richard Dower]

Efferman....is it possible to make flat tiles with a curve on each end?

Same type of curve seen in a Technic beam:

Flat tile:

So a flat tile with a curve on both ends, and another version with a curve on one end.

In lengths 1x2 - 1x16.....is it possible?

[efferman]

like the old steering plates?

[Richard Dower]

like the old steering plates?

If you mean these old parts then no:

I mean....kinda....the old steering plates have the curve at each end....but i just want them 100% flat on the top surface.

The reason i want them is as you can see with modern Technic beams there is a curve on each end, wheni add a flat tile each end is square not curved to match the Techanic beam.

[Dafgek81]

I understand, but a one piece smoother rim would be nice.

[oracid]

Tank you Efferman, I wil wait your coming back.

[efferman]

do you want a gear rack for extending a boom or as a steering rack?

[oracid]

Sorry, I don't understand your question.

What I want is the same as this one but with 26M long: http://www.shapeways.com/product/CWAE2VNAR/gear-rack-7l?li=user-profile&optionId=41744904

Thank you by advance.

[oracid]

Hi

Why do you use Autodesk Inventor instead of Autodesk 123D Design, which is free : http://www.123dapp.com/design .

Only to make my mind understanding.

[efferman]

i use inventor because i need this in my job.

[oracid]

Hi,

I just realized this is the piece I need. I ordered 10 : https://www.shapeways.com/product/4QE5P2AC9/gear-rack-beam-4l?optionId=41744256&li=ostatus

Thank you for your attention.

[oracid]

Hi

Since I have seen your topic, I Am very interested in 3D printing.

I was wondering, in Shapeways site, I don't see nylon material.

I Can see Detailed Plastic, Elasto Plastic, Frosted Detail Plastic etc... but nothing about nylon.

I guess the real name is not nylon. Can you tell me what is the exactly name of the material you are using.

Thank you in advance.

[nicjasno]

Ah, the trilex wheel system. I love the looks of the trilex rims on old trucks. Makes them look so tough.

[weavil]

I was thinking of something like this

but shorter. This way I can fit it into a small LA to use with a U-joint.

Something to this effect....

OR