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Thread: The Interceptor: A U4 super car

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Old 03-07-2018, 08:48 AM   #101
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Default Re: The Interceptor: A U4 super car

Thankfully I could hit your Flickr image then hit photostream to see what you've done. Cool. Photobucket...... sucks. Loving the design on the axles with integral skids. Shocks on the upper links, SXS style? Kinda Razor/Rhino looking. How do you plan to get the front mounts under the hood and not sacrifice wheel travel? Or are you going to leverage the shock ratio at like 4:1 or greater? Or go outside the box and use prop rods and mount the shocks indoard, Revo style, letting you keep a reasonable ratio?
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Old 03-07-2018, 10:37 PM   #102
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Default Re: The Interceptor: A U4 super car

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Originally Posted by MAC FAB View Post
Thankfully I could hit your Flickr image then hit photostream to see what you've done. Cool. Photobucket...... sucks. Loving the design on the axles with integral skids. Shocks on the upper links, SXS style? Kinda Razor/Rhino looking. How do you plan to get the front mounts under the hood and not sacrifice wheel travel? Or are you going to leverage the shock ratio at like 4:1 or greater? Or go outside the box and use prop rods and mount the shocks indoard, Revo style, letting you keep a reasonable ratio?
I am leaning towards cantilevers. This does a couple things: Allows me to make antisquat and roll center changes with the uppers links and not affect ride height; separate ride height and motion ratio options without affecting antisquat or roll center and lastly to keep the shocks down low and out of harm's way while not being affected by the lines and tubes of the chassis.

I just need about 100 hours on the computer to draw everything up now haha.
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Old 11-14-2018, 11:36 PM   #103
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Default Re: The Interceptor: A U4 super car

Yearly update to this project. I redesigned the center sections to keep the axles from self destructing on big rock hits which led to a quick mock up of a carbon fiber TVP test rig. Based on a High Altitude LCG wraith skid, this design will let me verify the link and shock geo before I spend countless hours designing and building a full tube cage.

Screenshot 2018-11-14 12.14.11 by Casey Childs, on Flickr

Screenshot 2018-11-14 12.14.31 by Casey Childs, on Flickr

Screenshot 2018-11-14 12.13.58 by Casey Childs, on Flickr

Its hard sometimes to tell how big a design is going to be on screen so here it is mocked up against my 2.2 FJ ttc model. Both have a wheel base of 14.5" and it ended up looking spot on size wise and proportionally.

Screenshot 2018-11-14 12.17.50 by Casey Childs, on Flickr

Screenshot 2018-11-14 12.17.43 by Casey Childs, on Flickr


Axle files and chassis files have been sent to Shapeways and the carbon guy respectively; now we wait for everything to show up.
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Old 11-15-2018, 07:46 AM   #104
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Default Re: The Interceptor: A U4 super car

*slow clap*
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Old 12-06-2018, 12:04 AM   #105
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Default Re: The Interceptor: A U4 super car

Parts are starting to roll in.


2018-12-01 04.41.06 by Casey Childs, on Flickr

2018-12-01 04.41.06-1 by Casey Childs, on Flickr

2018-12-03 22.19.36 by Casey Childs, on Flickr

2018-12-03 22.19.28 by Casey Childs, on Flickr

2018-12-03 22.19.22 by Casey Childs, on Flickr

2018-12-03 23.51.27 by Casey Childs, on Flickr

2018-12-03 23.51.30 by Casey Childs, on Flickr

Waiting on more 13mm bearings for the rear axle and the carbon chassis parts right now. I have everything else I need to build this car sitting on the bench waiting.
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Old 12-06-2018, 08:11 AM   #106
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Default Re: The Interceptor: A U4 super car

This is so over the top Casey. People are really sleeping on the design and ingenuity you are putting into this. I'm very excited to see this completed. Nice work
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Old 12-11-2018, 03:32 PM   #107
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Default Re: The Interceptor: A U4 super car

nice work for sure. never doubt shapeways lol. the plastic is oddly strong when designed right. I designed a chassis for my pro rig, I was able to stand on it without it breaking.. (never finished it but getting back to it this upcoming spring)

I do have on question though, why the shocks on the upper links?
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Old Yesterday, 10:14 AM   #108
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I do have on question though, why the shocks on the upper links?
Wider shocks, more room in the chassis, better protected shocks and overall better shock and link geometry. Wider shocks means the car needs less sway bar to keep the chassis flat; more room in the chassis means for a lower CG and a balanced rig; and better geometry is the roll center is lower so the car tracks straight through rough terrain with no axle steer.
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Old Yesterday, 10:39 AM   #109
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Default Re: The Interceptor: A U4 super car

Science!
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Old Yesterday, 11:08 AM   #110
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Default Re: The Interceptor: A U4 super car

I never thought all that positive would come out of that design. Thanks for the explanation!

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