Thirdwigg's MOCs

[Paul B Technic]

That is very cool.

[pow]

fluent design. Lots of great design solutions. The boxer engine is funny ( in a positive way). Very good looking! And the instruction is pretty good too! Just one minor thing: Why did you use the printed fenders from the bugatti within the instruction?

[Thirdwigg]

On 8/14/2024 at 7:37 PM, Paul B Technic said:

That is very cool.

Thanks!

19 hours ago, pow said:

fluent design. Lots of great design solutions. The boxer engine is funny ( in a positive way). Very good looking! And the instruction is pretty good too! Just one minor thing: Why did you use the printed fenders from the bugatti within the instruction?

Thanks again. Yeah the little Boxer engine is a fun little solution. It's not perfect, but functions well at this scale.

I used the printed fender in the instructions mostly because I was not in a place to create a new part in Studio for this MOC. As of published time, Studio only has the printed version of part 2459 listed. I'll change it when it's updated.

Edited August 16, 2024 by Thirdwigg

[pow]

12 hours ago, Thirdwigg said:

Studio only has the printed version of part 2459 listed

No way! are they kidding? Its not that bricklink(studio) could be seen as part of the Lego Group. And we are doing Lego's B-models and don't even get digital versions of the pieces right in time, after release.

...Your build is still awesome!

[Thirdwigg]

This past weekend I had a chance to participate in my first truck trial. I know, I know, I'm about 15 years late to the party.

I brought the Mack Marble (Rebrickable Instructions), a truck that I designed about 12 years ago. It worked well enough. But it turns out that some of the trial truck design features that were settled years ago were missing in my truck. So the open differentials, non-braced steering system, and one non-braced drive gear caused some problems. But other than the that the truck was stable and had good speed and maneuverability. I'll make some updates to the truck, and share them soon.

I do love an orange truck, but the red looks pretty good here.

Here is a photo of all our trucks. The little DBG truck is mine as well, but it was too small for our course. I'll post that truck soon as well.

I hope to do this again soon.

[gyenesvi]

10 hours ago, Thirdwigg said:

I brought the Mack Marble

Cool one! I thought first it's a Unimog :))) But what's a Mack Marble? I searched for it on Google and primarily found your builds :) but no real trucks in a similar form factor..

What tire size is this using? At first I thought it's Zetros size, but maybe rather 107mm? I guess the smaller DBG one is using Zetros tires?

[Thirdwigg]

8 hours ago, gyenesvi said:

Cool one! I thought first it's a Unimog :))) But what's a Mack Marble? I searched for it on Google and primarily found your builds :) but no real trucks in a similar form factor..

What tire size is this using? At first I thought it's Zetros size, but maybe rather 107mm? I guess the smaller DBG one is using Zetros tires?

The Mack Marble was a fictional truck that I came up with years ago. It's not based on a real truck, so it was my attempt at coming up with a fun name.

This truck uses the 107mm tire from 42099/42070. Correct, the smaller DBG truck is using the Zetros tires.

[gyenesvi]

15 hours ago, Thirdwigg said:

The Mack Marble was a fictional truck that I came up with years ago. It's not based on a real truck, so it was my attempt at coming up with a fun name.

Oh, that makes sense then, it's a believable name :)

[Thirdwigg]

OK, the first of the above trial trucks are available with free instructions. You may find the instructions at Rebrickable.com.

It's been a while since I have made a motorized MOC, and this is the first one with Control+. I hope you enjoy, and find the instructions clear. The truck features steering, four wheel drive, and front and rear live axle suspension. It can be driven using LEGO set 42160 Control+ Application. 

Posting this image makes me think it been a long time since I posted the bottom shot of a MOC.

And sorry, I don't have any footage of this truck driving around at our local Truck Trial event. 

I'll post the updated Mack Marble soon.

[jorgeopesi]

Another great build, it looks very compacted and clean but it has everything.

[Zerobricks]

Looks good, but why are you using CV joints on the rear fixed axle? Seems like a weak point.

[NV Lego technic]

7 minutes ago, Zerobricks said:

Looks good, but why are you using CV joints on the rear fixed axle? Seems like a weak point.

I don't think they'll pop out, but they are kinda unneeded. A bugger issue seem to be the open diffs.

[Thirdwigg]

3 hours ago, jorgeopesi said:

Another great build, it looks very compacted and clean but it has everything.

Thanks again.

3 hours ago, Zerobricks said:

Looks good, but why are you using CV joints on the rear fixed axle? Seems like a weak point.

I think when I was building the prioritized the use of the 4L stop axles to lock the gears in the differential. In retrospect, there may have been a better option.

3 hours ago, NV Lego technic said:

I don't think they'll pop out, but they are kinda unneeded. A bugger issue seem to be the open diffs.

Yeah, the axles don't pop out.

Agreed, the open differentials are made for general household driving. It quickly became clear this truck had no place in the trial competition for many reasons (C+ interface, high COG, small tires).

[Thirdwigg]

As promised, I have uploaded instructions for the updates Mack Marble Trial Truck. You may find them for free at Rebrickable.com. The MOC uses Power Functions, which I understand is a little outdated, but it still works well. Maybe for the next update, and I'll change it to Control+.

The truck features:

• Four wheel drive with fixed differentials
• Front steering
• Front and rear live axles
• Front and rear portal axles
• Power Functions XL for drive
• Power Functions M for steering
• Final drive ratio of 1:2.79, and can be changed to 1:5.01 by changing the portal axles.

The underside of the truck.

And here is the original, which was one of my first instructions on Rebrickable! I personally like the updated version a little more.