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Cox Engine of The Month
July-2024
robot797's

"ULTIMITE COX 010: it has a clutch, E starter, throttle, exhaust, aluminum tank, aluminum venturi, gearbox with forward and reverse, and now its on a custom drawn and printed stand"



PAST WINNERS
CEF Traveling Engine

Win This Engine!
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Post  Jason_WI Mon Feb 11, 2019 1:20 am

I was sent a Cox Mercedes driver to attempt to 3D scan and 3D print replacements.

It took a while to get the correct settings and then finally dusting the model in talc powder to cut the refection down.

For best results 2 scans are needed. One 90 degrees off from the previous scanned axis.

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After the print cloud is captured both scans are merged and any artifacts are removed manually. Each scan took 2 hours so a total of about 4 hours of scan time.

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After the print cloud is cleaned up the mesh is then created. There are different levels of texture that can be used and this was the best looking as far as features and smoothness of the model.

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The mesh is then exported as a STL file then imported to Slic3r to generate the G code for the printer.

Here is the result. Most of the small features are lost in the scanning and slicing processes. Fine details of the fingers,  the goggles, and helmet are lost n the mesh. it did create a basic shape of the model and could pass off as something that looks good at 10 feet away.

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Post  NEW222 Mon Feb 11, 2019 6:52 am

That is amazing. For something that is almost unobtanium, I am sure some people would be more than happy. I know I would. Thanks for sharing this. It is nice to see.
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Post  Marleysky Mon Feb 11, 2019 9:14 am

Yes, this is amazing! As a youngster my Dad grew up with Flash Gordon and Dick Tracey as comic characters with abilities that were “out of this world” as space flight and wrist radios. In my life they’ve become reality!  I can only wonder what parts of our current science fiction will become reality in the near future.  The ability to scan and print in 3 dimensions is incredibly awesome. Especially considering it is being done at home, rather than a scientific laboratory.  As I look as the resulting copy of the original driver i am reminded of Jeff Goldblum as Brundlefly, just a little fly  mixed up in the DNA during transformation! .....yeah, we still have time to work on the fine details!!  

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Post  getback Mon Feb 11, 2019 9:44 am

I don't understand why the printer can't do better detail when it can print teeth on a gear as the ones you sent me ? As said i do think it is amazing that can bee done in your home .
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Post  KariFS Mon Feb 11, 2019 10:22 am

The details are probably lost mostly in scanning, but it could be that the slicing program loses some too. But the details can still be beyond the capabilities of any printer. If the resolution is, say 0.1mm, which is pretty good, it is still not small enough for the tiny details like goggles, pockets etc.

Looks like a job for the traditional silicone mold and resin method Two Cents

But I do appreciate the effort and all the help you provide for fellow members Jason Thumbs Up
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Post  batjac Mon Feb 11, 2019 8:36 pm

Marleysky wrote: i am reminded of Jeff Goldblum as Brundlefly, just a little fly  mixed up in the DNA during transformation!

Obviously, the driver in the open cockpit swallowed too many flies while rally racing...

Bzzzzzz Bzzzzzz Mark
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Post  Jason_WI Tue Feb 12, 2019 1:00 am

Lol. I kinda printed a mummy. No fingers. Facial features gone. Mummy Benz driver.
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Post  KariFS Tue Feb 12, 2019 4:16 am

lol!

How about wrapping the figure in some beige textile band-aid tape? The Benz is already shaped like a sarcofago, just need some ornaments and gold paint Very Happy
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Post  Jason_WI Fri Feb 15, 2019 11:53 pm

2nd scan with natural lighting. Better but not quite there on the face yet.

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Post  Levent Suberk Sat Feb 16, 2019 3:44 am

Jason, painting the figure in white can be a problem solver? Orange color surface affects laser scan?
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