Ancestors

Toot

Written by Chris Huck :freecad: :ubuntu: on 2025-01-19 at 03:19

In 2016, I 3D printed a replacement steering wheel for a toy tractor that I played with as a kid. We’re talking about a plastic toy that has survived for a little over 45 years. My nieces and nephews now play with it. The printed steering wheel broke recently, and now I have to make a new one. Looking at the original g-code file, it took 9h20min on my original 3D printer. I’m curious how much faster it will print on a modern printer? This edition will also be PETG instead of PLA. #3dprinting

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Descendants

Written by Chris Huck :freecad: :ubuntu: on 2025-01-19 at 03:19

The original version was modeled in Fusion360 before I knew better. Luckily, I have the STL that I can measure from to recreate it in #FreeCAD. I’ll probably increase the wall thickness and change the infill to gyroid for increased strength.

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Written by M4x on 2025-01-19 at 09:21

@chrishuck Nice, I'm looking forward to it!

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Written by amd on 2025-01-19 at 03:49

@chrishuck it’s incredible that you have the gcode from 2016

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Written by Chris Huck :freecad: :ubuntu: on 2025-01-19 at 12:20

@amd I was looking through the hard drive that had these files and I was amazed at some of the things that were on there. All of my 3D printing stuff is very organized, which made it easier to find, but there are photos from 2006 that I didn’t know I still had. I guess this is why we do backups, right?

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Written by Alex Volkov on 2025-01-19 at 05:44

@chrishuck If you print it face down, you'd need to use a lot fewer supports -- just in the center.

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Written by Chris Huck :freecad: :ubuntu: on 2025-01-19 at 12:11

@avolkov Oh, that’s just one of many changes that I’ll be making this time around. Back when I made the original, I was new to 3D printing.

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Written by Kyle Davis on 2025-01-19 at 13:29

@chrishuck slicers have come a LONG way since 2016. That might be the bigger advance than even the mechanics of the printer. It would be very interesting to analyze the gcode differences!

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Written by Chris Huck :freecad: :ubuntu: on 2025-01-19 at 14:33

@linux_mclinuxface Totally. I feel like I’m changing a ton of variables. So, is it really an apples-to-apples comparison? At the very least, it will be interesting to see the differences.

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Written by Kyle Davis on 2025-01-19 at 14:42

@chrishuck I suspect the final object will be very close dimensionally but how it gets there will be apples/oranges. Even the variable line width (arachne) is a game changer in the slicing.

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Written by Chris Huck :freecad: :ubuntu: on 2025-01-19 at 14:48

@linux_mclinuxface I’m also going to print it upside down to minimize supports, unlike last time, because I didn’t have a smooth PEI sheet to print on back then, and I wanted the top to be smooth.

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Written by Kernel Bob on 2025-01-19 at 23:42

@chrishuck @linux_mclinuxface You can run it through the slicer in the original orientation and see what the estimated print time is, though. That would be slightly more comparable.

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