Harley Designs

HD Build Alongs and HD Tools

Carbon 911 - Build Along Carbon 911 - Build Along
Sold out
Carbon 911 - Build Along
$99.99
Limit 1 per order

Carbon 911 Build Along

Starting with precision laser-cut aluminum components, you'll build and braze a steel tube cage, create a lightweight carbon fiber body, and finish with a custom Porsche-inspired RC that simply doesn't exist anywhere else.

The Carbon 911 is our most ambitious Build Along yet, combining steel fabrication, carbon fiber construction, 3D printed tooling, and precision laser-cut components into one incredible project.

This is a true Build Along—not a pre-recorded course. You'll follow the project as it develops alongside Harley Designs through a private Discord community where STL files, documentation, templates, announcements, and project resources are released throughout the build. Follow along with the Harley Designs YouTube videos while collaborating with fellow builders.

https://youtu.be/-jRXGCe1Rms?si=rUWgyUWX6DrzO6ou

What You'll Learn

  • Tube bending, notching, and rolling

  • TIG welding and silicon bronze brazing

  • Carbon fiber fabrication without specialized composite equipment

  • 3D printed jigs, fixtures, and molds

  • General fabrication and assembly techniques

What's Included

  • Access to the private Carbon 911 Build Along Discord

  • Progressive release of STL files, templates, documentation, and project resources

  • Community support throughout the Build Along

The Build Along concludes once the project is complete. Future products, accessories, upgrades, or project expansions released after the Build Along are not included.

Required Platform

The Carbon 911 is specifically engineered around the Vanquish Products VRD Carbon Kit, which provides the F10 Portal Axles, VFD Transmission, links, and S8E shocks used in the project.

Additional required components include:

  • Vanquish VFD Stubby Kit

  • 4.19" tires

Additional components—including wheels, electronics, hardware, raw materials, and fabrication supplies—are also required.

Required components, recommended parts, and purchasing information will be discussed in the launch video and clarified as the Build Along progresses.

Fabrication

This project requires 3D printing, tube fabrication, TIG welding/brazing, carbon fiber fabrication, and general shop skills.

Laser-cut metal components are professionally manufactured through SendCutSend, eliminating the need for a laser cutter or CNC machine. Laser-cut production files are not included or available separately. International builders without access to SendCutSend will be able to purchase the required laser-cut components from a designated U.S. supplier.

As with any real engineering project, occasional design refinements may require reprinting a part, remaking a component, or using additional materials. While every effort is made to minimize this, it's a natural part of custom fabrication—and part of what makes this a true Build Along.

Is This Build Along for You?

If you enjoy building, learning new fabrication skills, and creating something that can't be purchased off the shelf, the Carbon 911 Build Along is for you.

By the end of the project, you'll have built far more than an RC—you'll have gained the confidence and experience to tackle your own custom fabrication projects.

Resources

The following resources are intended to help you prepare for the Carbon 911 Build Along.

This is not a complete Bill of Materials. Additional materials, suppliers, purchasing information, and recommendations will be shared throughout the Build Along as the project develops. You do not need to purchase everything before the Build Along begins.

Required Platform

Additional RC components including electronics, wheels, tires, hardware, and other supplies will also be required.

Fabrication Materials

  • 3/16" Steel Tubing(Use code Harley: HarleyDesigns2415)
    https://bit.ly/4gz2687

  • Carbon Fiber
    Recommendations will be provided throughout the Build Along as the project progresses.

  • Windshield Material
    A recommendation will be provided later in the Build Along.

Recommended Tools

3D Printing

  • 3D Printer(Bambu Lab A1 or larger recommended)

  • PLA Filament - Used for welding fixtures, templates, and fabrication jigs.

  • PETG Filament - Used for carbon fiber molds.

Tools

TIG Welding Equipment

ArcCaptain (My Top Pick)

YesWelder (Alternative)

Argon Cylinder

I recommend purchasing a used cylinder locally or through a local welding gas supplier. A Q or Q1 size bottle is a great place to start.

Silicon Bronze Filler Rod (.035")
https://amzn.to/3R5s60w

Taps

M2.5 Spiral Point Tap
https://amzn.to/4wisGYd

M3 Spiral Point Tap
https://amzn.to/4wCLHnJ

Helpful Videos

Previous Rockabilly Build Along Playlist
https://www.youtube.com/playlist?list=PLYJUKgayMNfUC4-ACSeLscoTSo2Uh58m3

TIG Welding Basics
https://youtu.be/C6IOOwWJx08

Tube Bending Tutorial
https://youtu.be/DHjv2nVWw5w

Rockabilly Build Package
Rockabilly Build Package
$99.99

Note: This product includes digital files only for the Rockabilly Pro Mod chassis build project. No physical chassis is included.

These files are provided under a Creative Commons license for personal, non-commercial use only. Commercial reproduction, manufacturing, or resale of the chassis or its components—either as-is or modified—is strictly prohibited.

What we’re Building

  • Rockabilly Pro Mod chassis

  • Built for Vanquish VRD Builds Kit Base

  • 2WS

  • 1.9’s with 4.75” Tires

What does this package provide (files)

  • Tube/Bend Templates for almost every bar

  • Fixtures for tube placement for 90% of tubes

  • Link to purchase all laser cut parts from SendCutSend.com

  • Hood design

  • Shift servo mount design

Extras

  • Interior for VFD Transmission

  • Scale engine 

Tools Needed

  • 3D Printer

  • TIG Welder - Ideal

  • Tube Bender (0.5” Radius)

  • Way to cut tube

  • Way to notch tube

  • M3 and M2.5 Taps

Supplies you’ll also need to buy:

  • Tubing (3/16” DOM)

  • Solid Rod (1/8”)

  • Silicon Bronze filler

  • PLA

Items From Send Cut Send

Steel Parts (required):https://marketplace.sendcutsend.com/p/CX458068/rockabilly-pro-mod-chassis-steel-parts

Extra set of shock mounts (if you want to mount in double shear): https://marketplace.sendcutsend.com/p/CB07G339/rockabilly-standard-shock-mounts

Body Panels (Short Standard):https://marketplace.sendcutsend.com/p/C791F340/rockabilly-aluminum-body-panels

Extended Body Panels (No Holes, drill your own mounting holes, additional mounts included):https://marketplace.sendcutsend.com/p/CM37M621/rockabilly-full-side-panel-w-o-holes-on-sides

Extended Body Panels (With Holes, additional mounts included): https://marketplace.sendcutsend.com/p/CK17V622/rockabilly-full-side-panel-w-holes-on-sides

Tubing Bender (Highly recommend):

https://harleydesigns.com/store/hd-bender-for-316-tubing

https://marketplace.sendcutsend.com/p/CW90C291/hd-bender-for-3-16-tubing

Disclaimer

  • Laser cut parts will only be offered from SendCutSend (and Brazin Scale for international customers where SendCutSend does not ship to) . I will not distribute the laser cut files to have them cut yourself. Make sure that you are able to purchase the parts from SendCutSend or you will need to contact brazin scale through their website: https://www.brazinscalerc.com/

  • Not everyone is capable of the tasks required to finish this project, however there are no refunds on the service.

  • I can share my methods but I can’t be sure your equipment will react the same as mine

  • There is a facebook group created for these projects, there are many good resources in there of people who have completed the project. https://www.facebook.com/groups/harleydesigns

  • Digital files sold have a non-commercial, personal use only license. You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used in any way whatsoever in which you charge money, collect fees, or receive any form of remuneration.

HD Bender for 3/16
HD Bender for 3/16" Tubing
$2.99

This bender is designed to give consistent bends when using 3/16in DOM steel tubing. This bender was specifically designed for 3/16in Steel DOM tubing with a .035" wall thickness, other materials may be possible but were not tested. This bender has a 1/2” bend radius.

You are purchasing the digital files for the 3D printed components of this bender. To buy the laser cut parts, please visit this link: https://marketplace.sendcutsend.com/p/CW90C291/hd-bender-for-3-16-tubing-beta

You will also need to provide the needed hardware as listed:

2pc - M4 x 30 

2pc - M4 Locknut

2pc - M3 x 12

2pc - M3 x 16

1pc - M3 x 20

4pc - M3 x 30

6pc - M3 x 8 Flathead (Optional if you countersink the vice clamp plates, otherwise do not install)

7pc - M3 Locknut

SHOP ALL BUILD ALONG ITEMS
Project IJ Cage
Project IJ Cage
$24.99

Note: This product includes digital files only for the Project IJ Roll Cage build project. No physical chassis is included.

These files are provided under a Creative Commons license for personal, non-commercial use only. Commercial reproduction, manufacturing, or resale of the cage or its components—either as-is or modified—is strictly prohibited.

Full Details for this project are covered in this video: https://youtu.be/ex9j-4XOfXo

What we’re Building

  • Project IJ Roll Cage

  • Built for Project IJ Body Set available HERE

What does this package provide (files)

  • Tube/Bend Templates for every bar

  • Fixtures for tube placement for 100% of tubes

  • Link to purchase all laser cut parts from SendCutSend.com

  • Dash Design

  • Roof Skin brace for use with aluminum roof skin

  • Printable Roof Skin

Tools Needed

Supplies you’ll also need to buy:

  • Tubing (3/16” DOM)

  • Silicon Bronze filler (TIG Welding)

  • PLA

Items From Send Cut Send

Steel Parts (required): https://marketplace.sendcutsend.com/p/C663J899/project-ij-cage-parts

Optional Send Cut Send Parts

Roof and Body Armor (side and hood for IJ body linked above): https://marketplace.sendcutsend.com/p/C6233891/project-ij-armor

If you want to use the hood armor, you need to have this hood option HERE

Tubing Bender (Highly recommend):

https://harleydesigns.com/store/hd-bender-for-316-tubing

https://marketplace.sendcutsend.com/p/CW90C291/hd-bender-for-3-16-tubing

Disclaimer

  • Laser cut parts will only be offered from SendCutSend (and Brazin Scale for international customers where SendCutSend does not ship to) . I will not distribute the laser cut files to have them cut yourself. Make sure that you are able to purchase the parts from SendCutSend or you will need to contact brazin scale through their website: https://www.brazinscalerc.com/

  • Not everyone is capable of the tasks required to finish this project, however there are no refunds on the service.

  • I can share my methods but I can’t be sure your equipment will react the same as mine

  • There is a facebook group created for these projects, there are many good resources in there of people who have completed the project. https://www.facebook.com/groups/harleydesigns

  • Digital files sold have a non-commercial, personal use only license. You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used in any way whatsoever in which you charge money, collect fees, or receive any form of remuneration.

Project IJ

Project IJ Sliders
Project IJ Sliders
$1.99

Note: This product includes digital files only for the Project IJ Rock Sliders build project. No physical parts are included.

These files are provided under a Creative Commons license for personal, non-commercial use only. Commercial reproduction, manufacturing, or resale of the cage or its components—either as-is or modified—is strictly prohibited.

Full Details for this project are covered in this video: https://youtu.be/ex9j-4XOfXo

Project IJ Rock Slider STL Pack

Design and Fabrication Files for Steel Rock Sliders

Take your Project IJ build from printed prototype to full metal fabrication.
This STL pack includes all the 3D-printable fixtures, templates, and jigs needed to build the Project IJ rock sliders when used in combination with the laser-cut steel parts available through SendCutSend.

What’s Included

  • STL files for:

    • Driver- and passenger-side fixture jigs to hold the tubes and plates during welding

    • Bend template to match the correct curvature of the 3/16" outer tube

What You’ll Need

To complete the full set of steel sliders, you’ll also need:

Assembly Overview

  1. Bend your tube using the provided template and the HD Tube Bender.

  2. Place the bent tube and laser-cut plates in the printed jigs.

  3. Tack-weld the assembly together.

  4. Final-weld, clean, and finish as desired.

Important Notes

  • This product provides digital STL files only.

  • The steel parts must be ordered separately through SendCutSend.

  • The STL files are intended exclusively for use with the Project IJ system.

  • All designs © Harley Designs Inc.

  • Built for Project IJ Body Set available HERE

Disclaimer

  • Laser cut parts will only be offered from SendCutSend (and Brazin Scale for international customers where SendCutSend does not ship to) . I will not distribute the laser cut files to have them cut yourself. Make sure that you are able to purchase the parts from SendCutSend or you will need to contact brazin scale through their website: https://www.brazinscalerc.com/

  • Not everyone is capable of the tasks required to finish this project, however there are no refunds on the service.

  • I can share my methods but I can’t be sure your equipment will react the same as mine

  • There is a facebook group created for these projects, there are many good resources in there of people who have completed the project. https://www.facebook.com/groups/harleydesigns

  • Digital files sold have a non-commercial, personal use only license. You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used in any way whatsoever in which you charge money, collect fees, or receive any form of remuneration.

Project IJ Fr/Rr Bumpers + Shock Tower
Project IJ Fr/Rr Bumpers + Shock Tower
$4.99

Project IJ Front & Rear Bumpers + Front Shock Towers

STL Fabrication Package

3D-Printable Fixtures and Templates for Steel Fabrication

This product includes the 3D-printable jigs, fixtures, and templates required to fabricate the Project IJ front bumper, rear bumper, and front shock towers using laser-cut steel parts.
These files are part of the Project IJ fabrication system and are intended for builders who want to weld real steel components, not bolt on printed parts.

What’s Included

  • STL files for:

    • Front bumper welding fixtures

    • Rear bumper welding fixtures

    • Front shock tower alignment and welding jigs

    • Bend and placement templates where required

  • Left/right and front/rear–specific fixtures as needed

What You’ll Need

To complete the final steel parts, you must also have:

The bend templates and geometry were designed around the HD Tube Bender.
Using it will produce the best fit, symmetry, and repeatability.

How These Files Are Used

  1. Print the fixtures from this STL package.

  2. Bend tubing using the provided templates and the HD Tube Bender.

  3. Place laser-cut plates and tubing into the printed jigs.

  4. Tack-weld, then verify alignment

  5. Remove from jigs

  6. Clean up and finish weld

Important Notes

  • This product includes digital STL files only. No physical parts are shipped.

  • Laser-cut steel parts are not included and must be purchased separately from SendCutSend.

  • Welding is required to produce the final bumpers and shock towers.

  • Designed exclusively for Harley Designs’ Project IJ.

  • All designs © Harley Designs Inc.

These files are provided under a Creative Commons license for personal, non-commercial use only. Commercial reproduction, manufacturing, or resale of the cage or its components—either as-is or modified—is strictly prohibited.

Disclaimer

  • Laser cut parts will only be offered from SendCutSend (and Brazin Scale for international customers where SendCutSend does not ship to) . I will not distribute the laser cut files to have them cut yourself. Make sure that you are able to purchase the parts from SendCutSend or you will need to contact brazin scale through their website: https://www.brazinscalerc.com/

  • Not everyone is capable of the tasks required to finish this project, however there are no refunds on the service.

  • I can share my methods but I can’t be sure your equipment will react the same as mine

  • There is a facebook group created for these projects, there are many good resources in there of people who have completed the project. https://www.facebook.com/groups/harleydesigns

  • Digital files sold have a non-commercial, personal use only license. You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used in any way whatsoever in which you charge money, collect fees, or receive any form of remuneration.

STL File Downloads

Roll Cages
Scale Engines
Free Parts
Rear Beds
Interiors

See all STL’s

All Parts