Description:

After several iteraction the e-Nable Italia's team composed by Alessandro and Michele has released the first prototype of a hand device called "Bike Adapter".

This device was designed to help children and adults with limb difference problems (amputations or agenesys of arm/hand) to easly connect with the bicycle handlebar allowing a better control of the bike direction.

Our suggestion is to build your device using the last stable version published on OnShape by e-Nable Italia (follow the link in the OnShape section below to open the project), the device is parametric and need to be customized to obtain the best fit for the end user (details are provided in the dimensioning section below), Fusion version is deprecated and was left here only for historical reason, .

The device is printed with flexible filament (TPU) to obtain the perfect mix between comfort, safety and functionality.

The project is open source, e-Nable Italia's volunteers provide the Bike Adapter device (and others) free of charge for anyone is in need of such assistive devices.

Authors & Contacts:

Michele Praga - pragamichele@gmail.com

Alessandro Villa - filotto78@gmail.com

e-Nable Italia - info@e-nableitalia.it

Device Configurator & Dimensioning guide:

https://dev.e-nableitalia.it/configurator/

A_lng_unaff, length of unaffected arm

B_lng_affect, length of affected arm

C_tip_circ, circumference length, measured approximately 2 cm below the tip of the stump

D_root_circ, circumference length, measured at the elbow crease

E_handle_dia, bike handlebar diameter

F_lng_affect_inner_elbow, length of affected arm, measured from elbow crease to the tip of the stump

vent_hole_no, number of vent holes, take care to choose an appropriate value to keep holes below the solid body of the device

Video:

https://www.facebook.com/enableitalia/videos/1357107074783470/

GitHub:

https://github.com/e-nableitalia/bikeadapter

Print Settings:

Printer brand:

Creality

Printer:

Ender 5

Rafts:

No

Supports:

No

Resolution:

0.2

Infill:

15%

Filament material:

TPU

Filament brand:

Ninjaflex

Filament color:

Water Translucent (#3DNF0829005)

Notes:

Filament color note: Ninjaflex Water Translucent (#3DNF0829005) filament has proven to be the most realiable and with better layer adhesion (compared to other colors and filament brands we evaluated)

Material Note: suggested shore 85a, higher shore gives more rigidity, use lower for additional flexibility for the device.