Heavy equipment is a favorite item for everyone, both adults and children. I wanted to make it print-in-place articulated for a long time, but the structure didn't come to my mind. As my design experience gained, I was finally able to make one of them, an excavator.

The print-in-place articulated method was applied, but it did not reduce the number of parts much. However, the structure of all moving parts was realized without missing. And since I paid attention to color division, you can enjoy a nice look after finishing it.

This design can be divided into three main parts (arm, upper body, and mobile/car body).

Of these, pay attention to the process of making the arm.

The process of building an arm is as follows.

First, pull the bucket cylinder to the top and insert it into the hole so that it can rotate.

Insert the piston into the arm cylinder on the back, and turn the piston into a place where the front arm (Stick) can be connected.

Insert the bucket by connecting it to the hole inside the bucket at the end of the front stick. At this time, do not confuse the connecting hole.

Insert the H-link into the front cylinder of the piston. And connect the H shape of the H-link to the bucket. Now, just insert the outer part of the H-link into the hole in the front arm (Stick).

Put the arm made in this way into the upper body arm (Boom). If the arm comes off well, attach it with adhesive or glue.

Please make sure to watch the video first for this process.

https://youtu.be/yLjKCgVMMNk
https://youtu.be/i9EgiMu7vBQ
https://youtu.be/d761aAZzRSk

I'm thinking of making other heavy machinery as well, but applying the Print-in-place Articulated method takes a lot of thought. However, I am planning to make it one by one. We look forward to your expectations.

1: 48 Scale

Largest part in printing, size = X 14mm, Y 128mm, Z 45mm, After full assembly size= X 82mm, Y 258mm, Z 74mm

Excavator

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Excavator (Print-in-Place articulated)