Here’s the design of the arm on the inside (top view)
On the left side is a solenoid. It is placed approximately on the middle of the arm. As you can see, when the solenoid receives power, it would retract, and pull the brake (the long part), and overcome the springs. Otherwise, the springs would make sure that the brake is engaged.
At the end of the arm, there would be the sprocket and ball bearing where the sprocket attaches into.
Parts not shown:
- Rubber padding on the brake and the sprocket to increase friction (which is why there is a 1mm gap between them)
- Cover. The spring would press the brake against the top cover. It should be on the bottom of this image
Meanwhile, I updated the holder design, it is now much smoother and I added the mounting option. Id say this is 95% final. The weight is approximately 2kg.
Oh btw its a SB2 15". I updated the reference tablet, as the SB2 15" is no longer a US exclusive, I am sure there will be many creatives grabbing one of those.
- Remote key set
- Screws for the top cover (white part). I decided to use #6-32 UNC screw, which is commonly used in PC cases, so if you lose one, it will be super easy to find a replacement.
I am thinking to replace the top cover (white) and remote key set adapater (dark grey) with just one piece of plastic, instead of two as in the picture. The advantage is that it will be one piece. The disadvantage is its no longer tool-less to replace the remote key set adapter. Any thoughts?