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General => The Soap Box => Topic started by: hutch-- on January 20, 2023, 08:40:14 AM

Title: If you are suffering from boredom,3D printed GoPro parts for a scooter
Post by: hutch-- on January 20, 2023, 08:40:14 AM

Working with PETG filament for impact resistance making GoPro parts.

https://www.youtube.com/watch?v=ePWhKmPE6ZE (https://www.youtube.com/watch?v=ePWhKmPE6ZE)

Title: Re: If you are suffering from boredom,3D printed GoPro parts for a scooter
Post by: HSE on January 20, 2023, 11:10:03 AM

Impresive the footage!!!

Are you correcting jumps with ffmpeg, don't you?

Title: Re: If you are suffering from boredom,3D printed GoPro parts for a scooter
Post by: jj2007 on January 20, 2023, 11:25:48 AM

Nice park, nice scenes :thumbsup:

Have you tried the GoPro Ultra (https://www.youtube.com/watch?v=VgjyPmFKxCU&t=786s)?

Title: Re: If you are suffering from boredom,3D printed GoPro parts for a scooter
Post by: K_F on January 21, 2023, 10:22:05 AM

That was a very smooth cycle track... I was expecting bricks in the road. :skrewy:

Having a bit of experience in 3D printing I don't have much faith in this videos claims.

All 3D prints are extremely weak in the horizontal/layer plain. One has to design a project with this in mind, providing reinforcemant (via nuts/bots).
None the less I have been able to design some simple scientific 'equipment' useful for the tasks we required.
These have been fairly small items, and required many modifications/versions to get the required tensile strength.

A great toy to play with.
 :thumbsup:

Title: Re: If you are suffering from boredom,3D printed GoPro parts for a scooter
Post by: hutch-- on January 21, 2023, 12:07:32 PM

Van,

It has a lot to do with the filament type you choose. PLA and PLA+ are reasonably strong but have poor resistance to impact loads. Of late I have been working with PETG which is not as strong but has much better impact resistance, a higher fail temperature (80c) and a high elongation factor when stretched to its limit.

All of the PETG I have printed is at 100% infill which solves another problem of built in weakness and I have printed them all flat to the bed so that there is no layer line weakness. Where strength matters, an increase in section seems to solve these problems.

Much of what I have found on Thingiverse and StlFinder are just badly designed by people who have no idea about structural components and often you can rotate the model and print it so it does not have inherant weaknesses but I agree with you that having the right screws through the guts of printed items solves many problems.