CAT 14M3 Motor Grader

[Hemi1966]

Originally Posted by Tunnelmaynia

Hello hemi1966,
I am very impressed with your work. I am a fellow machinist and I also use fusion 360 for my CAD and CAM. I want to start a build of my own but the biggest obstacle finding scale drawings or even the 1:1 size to be able to scale down. Can you please share where you are getting your dimensions from. Also some photos of your machines and maybe some work holding. I really like the idea of building them yourself versus buying a manufactured version. Thank you in advance for the help with the drawing sources. Jeremy.

The big difficulty when making these is the lack of scale drawings
I first get a 1:50 scale die cast model of the object, with that you can get some measurement.
The machine brochure usually have some dimension drawings.
One place to look is also this: https://avspare.com/, there you can get some idea of the parts.

Drawing a part that is more complex often takes more time than actual machining. The following parts assembly I was drawing many, many, hours

Click my signature at the end of this message to get to my Youtube channel to see some machining videos.

[Tunnelmaynia]

Hemi1966
Thank you for the reply. I hadn't thought about scaling up. I was afraid of the dimension from the smaller die-cast models being to far off. I will give it a go and start drawing some things and assembling the 3d components in fusion. Thanks again.

[Hemi1966]

Originally Posted by Tunnelmaynia

Hemi1966
Thank you for the reply. I hadn't thought about scaling up. I was afraid of the dimension from the smaller die-cast models being to far off. I will give it a go and start drawing some things and assembling the 3d components in fusion. Thanks again.

Dimensions of smaller details that are impossible to cast in small scale might be slightly off, but most dimensions are correct enough.