Posterior Walker Trunk
A portable addon compartment with two pockets
and a tray with a bottle/cup holder for a teen posterior walker.
An accessory which assists with carrying everyday objects,
doubling as a table, enhancing convenience in various settings.
The product was designed to fit the dimensions of the "Nimbo" Posterior Walker.
However, all measurements can be customized to accommodate your specific requirements.
Senior Year Fixperts course
Designed by Ronin Krayzman for Elad Zisman
Instructed by Prof. Gad Charny and Dana Yichye Shwachman
HIT Industrial-Product Design B.A.
Supplies
1. Aluminum Rod - ⌀10mm, length:1000mm.
2. Wooden Board - length:40mm, width:27mm, height:10mm.
3. Water and Dirt Resistant Fabric - length:1000mm, width:1000mm.
4. Polypropylene Sheet - length:20mm, width:30mm.
5. Heat Shrink Tubing
6. ScrewsㅤX6
7. Hinges X2 - ⌀5mm, length: 430mm, width: 25mm.
3D Prints
All 3D files are printed using PETG.
1. End Caps X2
2. Hinge Locks X2
3. Cup Cap
4. Borders X3 + Dowels X6
Chassis
1. The metal rod is bent inwards at a 90° angle, 330mm from each end.
2. Each end is further bent 30mm from the tip, as depicted in the illustration above.
Cup Holder and Borders
1. The tray/lid is shaped, cut, and sanded to achieve the desired design.
2. The cup holder is drilled through the wooden board on the far right side (for dextral, right-handed use) using a ⌀65mm hole saw.
3. Using a 7mm drill bit, 6 blind holes are drilled to a depth of 4mm along the right, front, and left sides of the board.
4. The Dowels are inserted into the holes with a small amount of adhesive.
5. The Borders are then positioned and secured on top of the dowels using adhesive.
The Hinges
1. 4 Through holes are drilled into the flat section of the chassis on the underside of the tray using a 7mm drill bit.
2. The Hinges are then aligned and positioned over the drilled holes.
3. 4 screws are inserted and tightened into the pre-drilled holes to securely fasten the "Hinges" in place.
Hinge Locks and Caps
1. The Hinge Locks are securely clipped onto the chassis to restrict the movement of the tray/lid.
2. The End Caps are affixed to the terminal ends of the chassis using adhesive.
The Compartment
All 5 fabric pieces are cut according to their corresponding measurements, and hems are stitched.
1. Piece #5 (the 2 pockets) is sewn onto the main piece (#1).
2. Pieces #2 and #3 are sewn along both sides of piece #1, and forming a loop on each end.
3. Piece #4 is attached on the interior, connecting to pieces #3 and #5 to form the bottle holder.
4. Finally, all pieces are stitched together along their edges to construct a cube-shaped structure.
Finishing Touches
1. The compartment is smoothly slid onto the chassis.
2. Heat shrink tubing is applied to the chassis at points of contact with the walker to prevent surface damage.
3. Heat is then applied to contract the tubing, ensuring a secure and protective fit.
4. The polypropylene sheet is inserted into the compartment to reinforce the structural stability of the base.
Final Product
