Creo Parametric Community Challenge 4 - Additive Manufacturing

[DaveMartin]

This month’s challenge is based on 3D printing and Additive Manufacturing. Your challenge, should you choose to accept it, is to lighten a part model by replacing a solid section with 3D beams or 2.5D lattices.

If you have the Additive Manufacturing module, you can use the Lattice feature. If you do not have it, how do you model beams with standard Creo features? What combination of Extrudes, Patterns, or other features would you choose?

You can create 2.5D lattices or 3D beams of your choice. You can create triangles, squares, hexagons, or octagons (or more). If you make 3D beams, you can add balls at the intersections of the beams if you want to. If you have the Additive Manufacturing module, you can make formula-based or custom lattices. Express your artistic side.

You can use a model of your choice, or you can use either or both of the Creo 4.0 provided models. One has a rectangular section that can be replaced; the other has a cylindrical section. You can create the beams inside a shell, or you can leave them exposed for easier viewing.

This challenge closes on Friday, February 16^th. Show us how you model for 3D printing and Additive Manufacturing!

Find the PTC Creo Community Challenge Guidelines here!

[ProFeature]

Hi,

Requesting a part without constraints is not an engineering request.

Suppressing the Extrude 2 feature in am_challenge_block.prt is the lightest AM solution.

Thanks

[DaveMartin]

The challenge is NOT simply to lighten the model. From the original text:

Your challenge, should you choose to accept it, is to lighten a part model by replacing a solid section with 3D beams or 2.5D lattices.

Simply suppressing the feature leaves the part without adequate load paths or structural integrity.

Nice try. If I provide constraints, will you actually perform the challenge?

[ProFeature]

Hi,

There are no engineering constraints that prevent this part from being printed at a 45-degree angle. At this angle, no supports are needed.

Suppressing the feature Extrude 2  is permitted as long as there are no engineering constraints or guidelines governing the part's functionality.

Thanks

[DaveMartin]

This is why we differentiate between verification and validation in product development. While you argue (incorrectly) that this meets the requirements of the challenge, it does not meet the intent. Therefore it will not be included as a submission. You can continue pushing that you've found a loophole, but I'm the final arbiter. Good day.

[DaveMartin]

I will post a submission to get the ball rolling. As stated in the challenge, you can also submit models of your choosing. The attached zip file has two iterations. I may have used these in videos on my channel. I think I used the latter iteration to demonstrate the simplified representation of the lattice introduced in 2021 (Creo 8 I'm guessing). The earlier iteration is from early 2018, so it's probably a Creo 4 model.

[MS_9892725]

Hi Dave,

Please check this

[DaveMartin]

Do you have a model file to attach?

[DaveMartin]

The challenge concluded on Friday, February 16th. The attached zip file contains the models with the lattice features I used to create the images in the initial post. They are Creo 10 files.

[DaveMartin]

Single-cell I-WP Lattice

I meant to post this a while ago. In the challenge, I wrote that people could submit formula-based lattices as well. Here is a single cell of the I-WP lattice introduced in Creo 10. A couple model files are also attached.

[Pettersson]

A shame I missed this one. Have been quite busy lately. I don't have the Additive Manufacturing extention, so would be interesting to give it a shot. I'll see if I have more time when the next challenge comes along! They're fun and interesting!