The concepts shown below may NOT apply to your situation or physicality.  They are provided as guidance for general use cases.

 

The most important ergonomic benefit of a XOOT system is not shown in the pictures below.

That benefit is, the easy movement of the screen.  Changing the screen position requires only a light push or pull action, it’s simple and fast.  This allows you to keep your body moving.  Try not to work in a static position for extended periods.  Moving the screen to different angles and locations allows for changing your movements and posture.  The idea is to not wear yourself out by constantly working in the same position.

 

Background:

The XOOT system was designed to solve a problem known as “gorilla arm”.  (The term dates to the early 1980’s with the first touch enabled PC, HP-150.)

Steve Jobs (Apple Co-Founder) summarized the problem below:

“Touch surfaces don’t want to be vertical.  It gives great demo but after a short period of time, you start to fatigue and after an extended period of time, your arm wants to fall off.  It doesn’t work, it’s ergonomically terrible.”

Solving this problem requires moving the screen to different modes.

Monitor Mode (Mouse and Keyboard Mode)

This mode is where the mouse and keyboard are the primary means of interacting with the computer. 

(red lines above indicate the active area of the screen should be at or below eye level)

The general idea is to set up your work environment to naturally aid with good body posture. 

  • Ears over your shoulders (no neck strain)
  • Back is upright, or supported (no spine strain)
  • Upper arms relaxed (no shoulder strain)
  • Hands aligned with lower arms (no wrist strain)
  • Feet are supported (legs are not pinched or strained)

A good reference for setting up a computer workstation for mouse and keyboard operation is the US government OSHA web pages.

Drawing Modes

The screen position changes but the rules for good body posture remain the same.

High Drawing Mode

The XOOT system set at high angle.

 

The user’s back is upright.  Their head is slightly tilted but the ears are still over the shoulders.

Desktop Mode

The XOOT system at desk level.

 

Support feet are folded down below the screen. (These feet may be used with high profile keyboards to ensure the back of the screen does not contact any keys on the keyboard.)

The user’s back is tilted backward this allows the head to tilt forward and still keep the ears over the shoulders.

Low Drawing Mode

The XOOT system pulled out and placed below desk level.

 

The user’s back is tilted farther backward.  The user’s ears remain over the shoulders.

Keyboard moved out of the way, chair is moved back, and arm rests moved down.

Standing Mode

Using the XOOT system when standing.

 

When using the XOOT System in a standing position adjust the desk height so that the screen is easily view-able without much neck tilt.

Optional Enhancements

Change the Default Height

Every XOOT system has a block that goes between the base and the XOOT arm.

 

This block can be changed to tune the XOOT system for comfort or the work environment.  See Kit for details.

 

XOOT system in picture is set for MIDI keyboard.

Keyboard Tray Operation

Using the XOOT system with a keyboard tray.

 

The Desk:

The XOOT system base should come near the desk edge. 

    • Narrow desks work best, approximately 24″ / 60 cm wide.)
    • For wider desks, the XOOT system clamp can fit in a 2″ (or larger) hole

 

Screen Height:

When possible, tune the screen height so that top of the viewing area is at or below eye level.  See section “Height Adjustment” in Kit for details.

Change the Default Tilt

A Kit to change the default tilt of the screen by 10 degrees. 

 

Many people find that a having a slight tilt to the screen is more comfortable when working in mouse or keyboard mode. 

 

Note: A stock XOOT system can tilt the screen by 10 degrees by pulling the screen forward slightly.  However, moving the screen closer makes it:

  • more difficult to focus you eyes on the whole screen
  • more complicated to grab the grip feet