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Old 03-07-2018, 07:48 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, 09:37 PM   #102
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Quote:
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, 10:36 PM   #103
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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, 06:46 AM   #104
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Default Re: The Interceptor: A U4 super car

*slow clap*
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Old 12-05-2018, 11:04 PM   #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, 07:11 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, 02:32 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 12-12-2018, 09:14 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 12-12-2018, 09:39 AM   #109
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Default Re: The Interceptor: A U4 super car

Science!
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Old 12-12-2018, 10:08 AM   #110
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I never thought all that positive would come out of that design. Thanks for the explanation!

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Old 12-13-2018, 01:09 PM   #111
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Cat is out of the bag I guess.

2018-12-12 11.20.57 by Casey Childs, on Flickr

2018-12-12 10.57.58 by Casey Childs, on Flickr

2018-12-12 10.58.05 by Casey Childs, on Flickr

2018-12-13 05.39.02 by Casey Childs, on Flickr

2018-12-13 05.39.40 by Casey Childs, on Flickr

2018-12-13 05.40.48 by Casey Childs, on Flickr

2018-12-13 05.44.00 by Casey Childs, on Flickr

2018-12-13 05.44.25 by Casey Childs, on Flickr

2018-12-13 05.45.14 by Casey Childs, on Flickr

2018-12-13 05.45.39 by Casey Childs, on Flickr



Put a battery through this thing today and holy shit does it exceed expectations. Launches flat, corners and steers extremely well and still crawls like that's all it was built for.
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Old 12-13-2018, 01:22 PM   #112
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Default Re: The Interceptor: A U4 super car

Meow
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Old 12-13-2018, 02:08 PM   #113
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Default Re: The Interceptor: A U4 super car

love this.
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Old 12-14-2018, 09:00 AM   #114
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Default Re: The Interceptor: A U4 super car

Man, I'd like to see the finalized design put into production!

Love those axle housings, I have a set of Losi Maxxis Creepy Crawlers on Gearhead CAC wheels that are nearly 6" tall that would be perfect on this thing...

(in case you can't tell, I want one)

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Old 12-14-2018, 09:36 AM   #115
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Default Re: The Interceptor: A U4 super car

We need some video bud. If this thing cawls as well as it launches we gotta have some video.

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Old 12-15-2018, 06:49 AM   #116
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Quote:
Originally Posted by durok View Post
Man, I'd like to see the finalized design put into production!

Love those axle housings, I have a set of Losi Maxxis Creepy Crawlers on Gearhead CAC wheels that are nearly 6" tall that would be perfect on this thing...

(in case you can't tell, I want one)

They will be on Shapeways soon.


Quote:
Originally Posted by CM9000 View Post
We need some video bud. If this thing cawls as well as it launches we gotta have some video.

Sent from my LGMP260 using Tapatalk

Working on video. Working nights right now so it's hard to get out and drive when there's light and the weather is good.
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Old 12-15-2018, 09:00 AM   #117
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Default Re: The Interceptor: A U4 super car

I know what you mean. Im on afternoon shift. Got no time but the weekends, but even then.. Still have no time. Kids

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Old 12-15-2018, 09:08 AM   #118
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If it makes you feel any better, this time of the year working days doesn’t help either
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Old 12-18-2018, 02:14 PM   #119
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IMG_20181216_064627 by Casey Childs, on Flickr

Got the body mounted and painted saturday night so I could go test drive sunday morning.


Before testing:

IMG_20181216_085001 by Casey Childs, on Flickr

After 3 batteries:

IMG_20181216_093340 by Casey Childs, on Flickr

IMG_20181216_093353 by Casey Childs, on Flickr

IMG_20181216_093409 by Casey Childs, on Flickr

IMG_20181216_093414 by Casey Childs, on Flickr

IMG_20181216_093427 by Casey Childs, on Flickr



Aaaaaaaaaand some videos. I suck at driving fast with one hand; already asked for a gopro for christmas so I can get decent video.

2018-12-16 15.51.24 by Casey Childs, on Flickr

2018-12-16 15.51.39 by Casey Childs, on Flickr

2018-12-16 16.11.29 by Casey Childs, on Flickr
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Old 12-19-2018, 09:58 AM   #120
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Default Re: The Interceptor: A U4 super car

Quote:
Originally Posted by Almighty Malach View Post
IMG_20181216_064627 by Casey Childs, on Flickr

Got the body mounted and painted saturday night so I could go test drive sunday morning.


Before testing:

IMG_20181216_085001 by Casey Childs, on Flickr

After 3 batteries:

IMG_20181216_093340 by Casey Childs, on Flickr

IMG_20181216_093353 by Casey Childs, on Flickr

IMG_20181216_093409 by Casey Childs, on Flickr

IMG_20181216_093414 by Casey Childs, on Flickr

IMG_20181216_093427 by Casey Childs, on Flickr



Aaaaaaaaaand some videos. I suck at driving fast with one hand; already asked for a gopro for christmas so I can get decent video.

2018-12-16 15.51.24 by Casey Childs, on Flickr

2018-12-16 15.51.39 by Casey Childs, on Flickr

2018-12-16 16.11.29 by Casey Childs, on Flickr
says videos are private and therefore cannot be viewed?!?
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