This was a project that my son asked me to put a hook on the wall for his long board. Well instead off a hook, I scanned in his hands, printed them, and mounted them to a nice back plate to then mount on the wall. The end result is much better than a hook.
Step 1: Step 1. Scanning in the Hands
For this you will need access to a scanning system. depending on the level of detail, the type of scanner you can get access to might be difficult to do a high detail project with. Lucky for me, I am in the industry and have a 7 Axis Romer arm with a Perceptron V4i scan head. the end result is a very high resolution and accurate scan of the hands.
To start with, we needed to get the right curve shape for the wheels to sit in. to do this we just held the board by the wheels to get a good idea of how the position of the hands should be for the scanning. We then scanned in his hands curved in that position.
From there, I used Geomagic Studio software to fill in small areas between the fingers, and clean up the model to make it a watertight mesh.
Step 2: Designing the Final Hand Models
After cleaning up the .stl mesh model, I then put it in the correct position as I wanted it mounted to the wall. Then added a 5/8 thread to the design so that it would print with the threads already in it.
Step 3: Segmenting the Fingers
Due to the curvature of the fingers, I was concerned that without printing support material the fingers would not print well. so I decided to section 3 of the fingers and add some tabs to align them and add strength when bonding them back together.The hands were printed with an ABS material, and used a mixture of ABS and Acetone to create the glue for the fingers.
I used my awesome
Step 4: Creating the Other Hand.
I cheated and mirrored the first hand.
End result was great.
Step 5: Monting to Plate
To be creative i used a 1/8 thick piece of aluminum I had and drilled it out for the correct spacing for the hands to be apart based on his long board. I also added 2 countersunk screws to hold the aluminum plate to the board, not really needed, but it keeps it from shifting.
I then cut and stained the oak mounting board as well and used the aluminum holes as a template for the wood pattern. I added a slot in the center on the back for a mounting plate, and attached that piece in place. (was lazy so used my drill to make this slot.)
I added a counter bore in the back of the board to hold the 5/8 bolt head and used the 5/8 bolt as the tightening and fastening of the hands, aluminum plate and the mounting board. I added 4 foam pieces to act as a cushion against the wall to keep it tighter.
Finally with the hands mounted (just past finger tight) it was ready to hang on the wall.
Step 6: Mount It on the Wall
Mark the wall for your screws, and use drywall inserts if it is not on a stud.
Hang and watch the other kids expressions when they see it.