OpenRC F1 Front Suspension (Updated V2)

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Description

Front shock absorbers (dampers) for Daniel's awesome F1 car!

V2 Updated Design!

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I have been trying to come up with a more functional alternative for the NinjaFlex dampers in my suspension design.  (They just weren't soft enough) 

As I was changing batteries in one of my kids toys I noticed the little conical springs inside the battery compartment and I knew I had the solution!  I can now say that this design works FANTASTIC!

By adding a recessed area to the hubs I was able to fit a longer spring from an AAA battery terminal over the guide bushings and allow the full travel I was looking for.  The new attached pictures show the unassembled view with the new spring, the battery terminals I used, and the suspension both uncompressed and compressed.

The springs I used were from these battery terminals:

Keystone Electronics 5204 Contacts; Battery Spring Contacts; Negative Spring Contact with Tab, AAA, N (5 pieces)

http://www.amazon.com/gp/product/B00LPP7NZ4

I also uploaded a video to YouTube demonstrating how it works.  https://youtu.be/YGE2oiwUV90

And posted a driving demo with all 3 of my designs installed on the car: https://youtu.be/g154r7Dcjas

Front Suspension: https://pinshape.com/items/17983-3d-printed-openrc...

Rear Suspension: https://pinshape.com/items/19186-3d-printed-openrc...

Standard F1 Rubber Tire Adapters:https://pinshape.com/items/17752-3d-printed-openrc...

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By adding small NinjaFlex dampers to the rigid frame of the F1 car I was able to reduce some of the bounce and vibration of the front of the vehicle as well as allow a small amount of body roll to aid in cornering.

The front upper and lower control arms have been modified to allow a sliding pivot to be attached to the wheel hubs.  Next the wheel hubs themselves were shortened vertically to allow for the placement of NinjaFlex (or possibly other materials) flexible spacers to act as small shock absorbers.

I printed the spacers out of NinjaFlex using a single layer on all sides to make them as soft as possible.  (.2mm layer height and .4mm nozzle)  Thinner would be better if you have a smaller nozzle.  The key is to make them as soft as possible.

Instructions:

Print the following:

1x Front_Upper_BOM_Suspension

1x Front_Lower_BOM_Suspension

2x Front_Wheel_Hub_Suspension (One needs to be mirrored for the opposite side of the car.)

4x OpenRC F1 Guide Bushing

2x OpenRC F1 Damper (Ninjaflex or similar)

Assemble as normal replacing BOM parts.  Thread a Guide Bushing on each new longer screw and thread it into the Front_Wheel_Hub on each side.  The smaller side of each hub faces up and gets one of the suspension spacers between it and the Upper_BOM.  Use the photo above to help with assembly if necessary.

I would welcome others to design a better/softer damper or experiment with other materials.  Small springs would probably work very well as well but I wanted to keep with the 3d-printed concept.  This is an excellent project and I'm proud to be able to contribute.

If anyone has problems being able to mirror the part "Front_Wheel_Hub_Suspension" I can mirror it and upload another .stl file, just let me know.

Design Files

File Size

OpenRC F1 Guide Bushing.stl
111 KB
Front_Lower_BOM_Suspension.stl
349 KB
Front_Upper_BOM_Suspension.stl
382 KB
Front_Wheel_Hub_Suspension.stl
525 KB
OpenRC F1 Damper.stl
101 KB
Front_Wheel_Hub_Suspension_V2.stl
603 KB

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