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Cox Engine of The Month
February-2019
balogh's

"Black Lynx .049 with a Throttle, Exhaust Deflector and Nelson-Galbreath head set"



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Cox Adam 12 tires recreated.

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Cox Adam 12 tires recreated.

Post  Jason_WI on Tue Feb 12, 2019 3:25 am

When you get a flat on the Adam 12 car and replacements are unobtanium time to fire up TinkerCAD and draw up some new ones.




On the printer. Printing in black NinjaFlex. It’s a little stuffer than the original tire but it will have to do.




An hour and 2 minutes later a new Goodyear comes off the printer.






I need to adjust the width of the bead a bit wider and shrink the ID a bit otherwise it’s a good fit.


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Re: Cox Adam 12 tires recreated.

Post  Frizzen on Wed Feb 13, 2019 2:23 am

Very cool! How's the grip with them compare to the old foam?
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Re: Cox Adam 12 tires recreated.

Post  rsv1cox on Wed Feb 13, 2019 6:46 am

Jason, I'm going back years to pull this one out - But - You da Man.

Amazing what you can do with that thing.

Bob
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Re: Cox Adam 12 tires recreated.

Post  Jason_WI on Wed Feb 13, 2019 2:04 pm

They are definitely more ridged than the foam ones. However if your missing a tire like in my case anything is better than nothing. Not sure how much traction there will be with these.

I need to tweak the design yet for a better fit to the rim.
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Re: Cox Adam 12 tires recreated.

Post  Levent Suberk on Wed Feb 13, 2019 3:14 pm

You made wonders with that 3D printer Thumbs Up
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Re: Cox Adam 12 tires recreated.

Post  NEW222 on Wed Feb 13, 2019 6:31 pm

Another wow! I agree, at every turn, something else just pops out of that printer. I have also been paying attention to all of this for another reason. It seems like each time you print off something and post it here, there is always mention of a different type of plastic used. So, not only learning how to use the printer, but now what types of plastics to use. This is now starting to look lik emore of an art, and one that you are definately very good in.
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Re: Cox Adam 12 tires recreated.

Post  Jason_WI on Wed Feb 13, 2019 7:09 pm

Feast your eyes on the exotic filaments:

https://www.3dxtech.com/ultra-performance-filaments/

This stuff is almost a $1 per gram. I'm not printing any of this stuff $$$$$$. Also some of the extruder temps for these exotic filaments are exceeding 400C/750F Hot

So far I have printed PLA, ABS, PETG, PET, Nylon, Zytal, Acetal, TPU(flexible aka Ninjaflex), carbon fiber ABS, carbon fiber PLA, ESD safe PETG, ESD safe TPU, ESD safe ABS, color changing PLA, glow in the dark PLA, glow in the dark PETG, wood filled PLA, brass filled PLA, and glass reinforced ABS.

Been printing since 2013.

Glow in the dark PLA life size skull. 48 hour total print time.




My printers.



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Re: Cox Adam 12 tires recreated.

Post  Levent Suberk on Thu Feb 14, 2019 1:17 am

How can I smooth the surface of PLA print object? Aceton bath is suitable? Sanding is difficult.
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Re: Cox Adam 12 tires recreated.

Post  Jason_WI on Thu Feb 14, 2019 1:23 am

Acetone smoothing works well with ABS. Not sure how well it works with PLA. There was a product you brushed on to smooth prints.

https://www.amazon.com/Smooth-XTC-3D-Performance-Print-Coating/dp/B00PFXK4JY/ref=asc_df_B00PFXK4JY/?tag=hyprod-20&linkCode=df0&hvadid=175361729697&hvpos=1o1&hvnetw=g&hvrand=9874382008561282177&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9019441&hvtargid=pla-307514694446&psc=1

I can print pretty fine details with the .25mm nozzle I have. I have a .15mm nozzle I haven’t tried yet. I need to add a filter to my filament feed to wipe the filament as dust on the filament can plug the .15mm nozzle.
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Re: Cox Adam 12 tires recreated.

Post  NEW222 on Thu Feb 14, 2019 6:46 am

That's is just plain old awesome, especially that skull!
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Re: Cox Adam 12 tires recreated.

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