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Old 2019.09.03, 11:32 PM   #1
art4242
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McLaren MP4-12C body - 3D printed reinforcements

For anyone interested, attached are details of how I prep my McLaren bodies for racing with 3D printed and other reinforcements. The .STL files of the 3D printed parts are also attached.

The best glue I've found for attaching the 3D printed parts is Welder glue (https://www.homaxproducts.com/patch-...dhesive-2-pack), it's like a better version of Goop and remains somewhat flexible so won't break in crashes.

The reinforcements won't make the body unbreakable, but for the most part protect the main failure points I've experienced. The front splitter reinforcement is by far the most important piece as that area is generally the first to crack.
Attached Images
File Type: jpg McLaren body details 1.jpg (239.1 KB, 38 views)
File Type: jpg McLaren body details 2.jpg (151.4 KB, 25 views)
File Type: jpg McLaren body details 3.jpg (77.1 KB, 25 views)
Attached Files
File Type: zip McLaren MP4-12C GT3 Reinforcements.zip (29.3 KB, 9 views)

Last edited by art4242; 2019.09.03 at 11:43 PM.
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Old 2019.09.04, 11:08 AM   #2
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Really great info. Do you run a 3D printed rear diffuser mounted to the motor pod? Would be interested to see the chassis you use under that.
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Old 2019.09.04, 02:33 PM   #3
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Thanks for sharing the info and models Art.
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Old 2019.09.04, 11:58 PM   #4
art4242
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Quote:
Originally Posted by SuperFly View Post
Really great info. Do you run a 3D printed rear diffuser mounted to the motor pod? Would be interested to see the chassis you use under that.
I have not tried a rear diffuser, I have seen others at our club run it but not sure if there's a noticeable advantage or not.

Here are more details of my chassis setup:
http://mini-zracer.com/forums/showpo...&postcount=153
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Old 2019.09.05, 01:14 PM   #5
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Art what 3D printer do you use? I have been looking at them for a long time but I have not decided on which one to get.
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Old 2019.09.09, 03:04 PM   #6
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Art what 3D printer do you use? I have been looking at them for a long time but I have not decided on which one to get.
I have a Flashforge Creator Pro, which is now several years old but still working fine. I chose it primarily as it has dual extruders (for printing two materials, mainly using one for support) as well a heated enclosure (for printing ABS).

I think there are now several capable lower cost machines now that would be fine, especially if they are small Mini-Z parts. I used to print mainly in ABS, but now mainly in PLA+ as the newer PLA+ filaments are strong enough and much easier to print without warping.
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Old 2019.10.10, 09:32 PM   #7
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art, what software did you use to create these parts? The reason I ask is that when I import the STL files into Ultimaker Cura they're really small.
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Old 2019.10.10, 09:43 PM   #8
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art, what software did you use to create these parts? The reason I ask is that when I import the STL files into Ultimaker Cura they're really small.
Looks like they were exported in inches. Bumped the size by 25.4x and it looks like it will work.
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Old 2019.10.11, 06:20 AM   #9
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I need a similar nose reinforcement for the Audi R8. Ideally something that would peg over the nose clip box and extend flat to the back profile of the splitter. All of mine seem to crack right at the perimeter of the front grille area. That level of modeling is beyond my skill set however.
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Old 2019.10.11, 11:03 AM   #10
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I need a similar nose reinforcement for the Audi R8. Ideally something that would peg over the nose clip box and extend flat to the back profile of the splitter. All of mine seem to crack right at the perimeter of the front grille area. That level of modeling is beyond my skill set however.
Which R8, 2015 or the older one? I think I saw a front reinforcement on Shapeways or Thingiverse for the older one. It was just for the profile of the splitter though.
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Old 2019.10.11, 02:22 PM   #11
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The old one. I looked at Thingaverse but did not check shapeways. I donít shop Shapeways, far to expensive for what your getting. Half a decade prior, when services were not so common place or accessible, it was amazing. Now that device pricing has come down, itís so much cheaper than what Shapeways charges you, plus shipping... printed bodies for example are near Autoscale pricing making it more of a must have vs. want experience.
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Old 2019.10.11, 05:09 PM   #12
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The old one. I looked at Thingaverse but did not check shapeways. I donít shop Shapeways, far to expensive for what your getting. Half a decade prior, when services were not so common place or accessible, it was amazing. Now that device pricing has come down, itís so much cheaper than what Shapeways charges you, plus shipping... printed bodies for example are near Autoscale pricing making it more of a must have vs. want experience.
https://www.shapeways.com/product/E4...li=marketplace

I agree for some things Shapeways makes no sense. Replacement side body clips are $54 for a set of 8 or so! However, if the part is small, it can be inexpensive. There is also a huge discrepancy in quality on what I can do on my printer vs. what their industrial printers can do. Although I'm not sure the reinforcement is what you are looking for, but it only costs $5.
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Old 2019.10.13, 11:28 AM   #13
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The old one. I looked at Thingaverse but did not check shapeways. I donít shop Shapeways, far to expensive for what your getting. Half a decade prior, when services were not so common place or accessible, it was amazing. Now that device pricing has come down, itís so much cheaper than what Shapeways charges you, plus shipping... printed bodies for example are near Autoscale pricing making it more of a must have vs. want experience.
PM me your address. I bought a set of 4 from Shapeways a year or so ago, I think I have one left, doubt I'll get another Audi body.
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Old 2019.10.13, 12:03 PM   #14
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Message sent.

Domestic printers have some astounding resolution compared to just 5 years ago. It's not up there yet for bodies as too much stepping is visible but that is true of Shapeways as well. I bought the Challenger body on shapeways and stepping is clearly visible, even with the powder material they offer.

Now, if only anyone made reproductions of Reflex Racing lexan wings...
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