Efferman's Custom Parts

[Cumulonimbus]

order in pure white and search for a matching coulour. the shapeways yellow is in my humbly opinion much to thin.

Thank you for the advice, my order has been send. I will post some images here when I have received and painted them.

[JJ2]

Is there any chance you have 3D models for technic beams 5L-15L and 8t and 24t gears? I just want the files so I can CNC them out of aluminum, I need them because I am using a RC grade motor with lego and it has already melted and fused many parts together from the heat, yes I did use lubricant.

[Nikolay]

Cool Circuits you are doing)

[tripletschiee]

Would it be possible to make thes female fellows also with an axle instead a pin?

tripletschiee, sure it is possible, Do you would order some of them?

Yup! Would be my first custom parts ...

ok, then i will make some

Effe, would it be possible to design those little fellows? Thanks!

[AndyCW]

Effe,

Could you create a 'female universal joint adaptor for piece 2907' with a slide akin to your u-joint with slide parts?

This

plus the slide part from this

This will allow strong telescoping drive shafts and support peculiar lengths.

very respectfully,

Andy

[efferman]

Sorry for not watching the topic, but actually my work is making me to tired at the evening.

tripletschiee, the pins are online

Dafgek, there is nothing done on the bucket

JJ2, you need a design with the outer shape and the pin holes without the Material savings?

andycw, my large driveshafts doesnt work?

https://www.shapeways.com/product/5K53VC2EE/large-driveshaft-for-piece-2907

[JJ2]

Efferman@ Thanks, but I have worked out the problem since the question was asked. Thanks anyway

[tripletschiee]

tripletschiee, the pins are online

Ordered!

[AndyCW]

Effe,

Thanks for the suggestion. I ordered a set of the drive shafts and the new 8880 style wheel hubs.

v/r

Andy

[JJ2]

Never mind I found something with further inspection that would fit my need that you had already designed.

Edited March 18, 2016 by JJ2

[AxeSlash]

new parts have arrived

unfortunately the planetary part works not like i want and i have to change some things.

I had a similar idea a while back, although I wondered if using bushes as bearings would help with the friction:

Also had some ideas for cross blocks:

Also we could really do with some proper long-travel shock absorbers. With pneumatic dampening. I'm in the process of building a monster truck (hence the planetary idea), and need something with 5-6L of travel in order to be in scale with the real thing. Or maybe shocks that can be connected in series without introducing friction. I might knock up a Sketchup idea to illustrate.

Edit: Hah. just noticed you already some of the cross block ideas :)

Edited March 23, 2016 by AxeSlash

[AxeSlash]

I had an idea in the shower earlier (where the best ideas are often had and forgotten!) - having read about peoples' experiences trying to make pneumatic suspension work, the common problem is that it's either too slow or too hard unless you drill out the inlets.

So, I thought "why not have two inlets next to each other to attach the hoses to - that gives you twice the airflow = less dampening"...Something like this:

Is that possible with Shapeways, Efferman? Would the plastic be smooth enough for the seal to move down? We wouldn't want to wear out the seal due to abrasion, either.

To clarify, I'm only talking about making the yellow part - the rest would be the standard parts from 21828c01 / 19476.

Note that I've also shortened it by 1L by putting the pin hole on the side. That hole might even be better off as an axle hole for this application (like the existing 9L shocks).

As a real life application, you would connect the two bottom inlets to a couple of spare small cylinders that are fixed (i.e. cannot move) that would act as miniature air tanks. As the suspension compresses, the air is forced through the inlets into these (fixed) cylinders at a faster rate than would be possible with the current stock Lego cylinders, but still slower than undampened suspension (i.e. like Lego's existing 'shock absorbers' that are actually just springs). What I'm trying to replicate (kind of) is a bypass shock (google it). Monster Trucks and Trophy Trucks use them. I have a scale Grave Digger MOC in the works at the moment that would benefit enormously from these new cylinders.

For suspension usage, I can't see a need/use for the top two inlets, but I've included them in my drawing just in case someone finds them useful for 'normal' pneumatic usage.

Edited March 23, 2016 by AxeSlash

[tripletschiee]

My order has just arrived!

Here are some impressions of the three parts.

The stuff seems to be very rough, but the pictures were taken with an extreme macro-modus from about 2cm distance.

Still I assume some sanding needs to be done.

Diff 2m 20z:

....

Towball Female Crossaxle:

.....

Towball Female Pin:

...

Later I will test them on "real" Lego.

[efferman]

The friction was caused on to less play between the parts. your planetary hub is only connected by the 3 blue pins?

Axe slash, unfortunately not

tripletschie, i cant wait your test

[AxeSlash]

I see your point.

Yeah the outer hub is only connected to the beltwheel with the 3 pins...I thought that would probably be strong enough, but didn't consider the play.

It might be better if the 3 pins were actually part of the outer hub, then you could just have a short pin at the end of each one that would fit the beltwheel better, and the whole thing would be stronger/less play?

The ring gear housing probably needs a slightly different shape on the outside so that the beltwheel and outer hub touch it and thus cause less play. Obviously it would need some polishing before use.

[tripletschiee]

Here are my videos:

Towball Female Crossaxle:

Diff 2m 20z:

Towball Female Pin:

[slungshot]

Ive been working on a BL USC Bat-pod and I wondered if there would be a way to design the Hero Factory Shield with handle for clip piece.

Edited March 31, 2016 by slungshot

[3dtech]

thanks for this information.

The top and bottom connection points need NOT be on the same/aligned holes. All you need for a kingpin is to connect the Upper and Lower control arms to different holes (not aligned). It is however a FIXED angle and no room for adjustment.

3d printing service india

Edited April 5, 2016 by 3dtech

[Jim]

thanks for this information.

Hi,

Welcome to EB!

Are you affiliated with the 3D printing site?

[Dafgek81]

Hey Efferman,

When are You putting up the clamshell buckets??

I hope to order all the parts I need for both the Actros and a tipping trailer and tubing next week.

I would like to get cool buckets for it to so I can really finish it.

And I'll order the towball socket then to.

[efferman]

can you give me please give the dimensions and attachmentpoints? and please no Facebook link, every fb link you have posted before had not worked for me.

[doug72]

Efferman:

Can you design an 8 hole wheel hub spider as per drawing.

Can be either plain circle or 8 arms each with a pin hole to reduce 3D material used.

Pin hole equally spaced on 5L diam. / Centre cross hole.

This is for building a small bucket wheel for a MOC of a BW trencher.

Edited April 9, 2016 by Doug72

[Dafgek81]

http://www.brickshelf.com/cgi-bin/gallery.cgi?i=618390

http://www.brickshelf.com/cgi-bin/gallery.cgi?i=6365679

http://www.brickshelf.com/cgi-bin/gallery.cgi?i=6365680

First picture are the original buckets.

Second and third picture are the attachment points.

I think the original buckets are a bit bulky, but I think you can make something that will fit this crane.

[efferman]

Dafgek, is this ok for you?

it is 7 studs wide and both buckets together are 14 studs from end to end. so you would digg a hole of 7x14 studs

edit:

doug, it is online

Edited April 10, 2016 by efferman

[Dafgek81]

Hi Efferman,

That is some work off art.

Will be ordering these soon.

Do they come as a pair, both for one price?

In black or grey to?