Introduction: Eblow Blocker for Tray
We made a elbow blocking device that attaches to the tray of a wheelchair for kids at the Watson Institute.
Supplies
- tri-wall cardboard
- white glue
- wood nails
- edging paper
- foam
- velcro
- primer
- paint
- polyurethane
- scissor
- jigsaw
- steak knife
- hammer
Step 1: Gather Tray/Chair Dimension
back piece
- height: ask how high the piece needs to be to keep the child's elbow from going over
- width: distance between the edges of the tray at the very back
side piece
- height: about 4.5 inches can adjust depending on child
- length: about 5 inches also can adjust
tray piece (for medium sized tray)
- width: 2 1/4in
- length: 4in
Step 2: Cut TriWall
measure out your 3 pieces and cut out using jigsaw
***cut out small slit in back piece for the tray piece to fit into
***make sure tray piece is only 1 layer triwall thick
draw a line 1in above the longside on side piece to leave room for velcro
Step 3: Glue/Nail
glue back piece to side piece above the 1in line, leaving 1in on the side piece for the velcro to stick to tray
glue tray piece into the slit made on back piece
add wood nails to secure side piece into back piece
Step 4: Measure Foam
cover all sides that will be in contact with elbow with foam
save pieces for later
Step 5: Prime
paint with primer
Step 6: Paint
cover with black paint
Step 7: Polyurethane
Step 8: Add Foam
using white glue add the measured out foam pieces
Step 9: Cut Out Velcro
Cut out 2 pieces of velcro for the bottom of tray piece
cut out 2 piece of velcro for side piece
