I again wanted to go big on this build. Like BIG. So I went 1:16 scale the best I could. I started with an existing design from a failed build. The plan is to have 2 PF-L motors for the drive, PF-XL for the boom, and PF-M for the rest.

Please note that I'm almost done with the build, but I am making minor adjustments to the build to help with function and/or weight support. I will be posting here to "show my work" of sorts and get feedback. I have been busy catching up on other things and building the excavator. (not much free time for posting/commenting on here)

 

This was the first version of the bottom:

And the start of the upper:

It was looking good, sort of, I had to redo all of it as I add the battery boxes and arms it had a weak structure and was "clunky" in functions. I have remade all of the above and will post more in the morning to not have too many pics in a single post.

Here is the redesign of the bottom. It's a lot stronger and better function.

It has more torque for the drive, but I had to make it 2 studs wider than the other version.

Here is the is the main boom:

It has the right curve, but I didn't like that I would need to use plates to hide the insides. So version 2:

It was close but the form and function was still off, but it was the base for the final version. Here the final version of the arm. I forgot to take

pictures of the first version of it.

Now the final of boom and arm:

Now the start the upper structure:

Some more of the progress:

I like these MOCs a lot but in a smaller scale, I do not know yet but you can have problems with the linear actuators if you have too much weight in the arm.

6 hours ago, jorgeopesi said:

I like these MOCs a lot but in a smaller scale, I do not know yet but you can have problems with the linear actuators if you have too much weight in the arm.

So far they work fine with the weight of the main boom, however:

The 16T gear on top will "pop" or "skip" now and then as it raises or if I put a "load" on arm.

The body has formed nicely:

The cab and first seat design:

Second seat and controls:

 

The final feature and video will be soon unless there you have some input.