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Revision as of 15:59, 7 December 2016
Raspberry Pi and Wireless Interface
The Raspberry Pi is an affordable computing solution, with the Raspberry Pi 3 B+, power supply, and MicroSD card for OS costing a total of $60. The Pi is able to connect to the Melzi Board through the ethernet port. Since the Pi has wi-fi and blue tooth enabled, there are two available connections for reaching the Pi wirelessly. By enabling VNC Server on the Pi, you can reach and control the Pi from any device running RealVNC Viewer. By enabling a DNS Service such as no-ip at startup, the Pi can be reached outside a local network even if the router the Pi is connected to is working on a Dynamic IP address. By enabling the Pi camera and an MJPG Stream, the printer can be monitored remotely.
Original Author: User:Tjmahan
Design and Printing
Design
The raspberry pi case has been modified to allow attachment of the Raspberry Pi Camera to the adjustable arm, as well as allow it to be mounted directly on the vertical support of the RepRap Athena. The links are parametric to fit the arm length you need. The ball joint can be scaled down to allow for an easier fit into the camera mount and ball socket.
Printing
The piece does not have to support a large weight, and a 15 or 20 percent in-fill will be sufficient. The ball joint can be scaled down to .99 to allow for an easier fit into the camera mount and ball socket.
Installation and Programming
Installation
| Description | Count |
|---|---|
| 6-30x3/4" Hex Screws | 2 |
| 6-30 Nuts | 2 |
| 2mm camera mount screws | 2 |
| 6mm stainless steel washer | 2 |
| 5/8" wood screw | 3 |
| Camera Front Right | 1 |
| Ball Joint | 1 |
| Ball Socket | 1 |
| Parametric Link | 2 |
| Raspberry Pi Bot with Clip | 1 |
| Haur-de-boite_all | 1 |
| Raspberry Pi 3 B+ | 1 |
| Raspberry Pi Power Supply | 1 |
| MicroSD Card | 1 - 16GB recommended |
| HDMI Cable | 1 |
| RepRap Athena | 1 |
- Insert Square Peg of Ball Joint into Square Hole of Camera Front Right. Press hard until Square Peg can slide no further.
- Insert Round end of Ball Joint into Ball Socket. Some force is needed.
- Ream all holes on links, Ball Socket, and Raspberry Pi Case Bottom using 4mm drill bit.
- Insert Links into grooves of Ball Socket and allign the holes.
- Insert 1 6x30 hex screw into hole on Ball socket, feeding through fully.
- Place washer onto end of hex screw.
- Place nut onto end of hex screw. Tighten as needed for firm hold.
- Align holes of Links with holes on Raspberry Pi Case Bottom.
- Insert 1 6x30 hex screw into hole on Ball socket, feeding through fully.
- Place washer onto end of hex screw.
- Place nut onto end of hex screw. Tighten as needed for firm hold.
- Insert ribbon of raspberry pi camera into camera module on Raspberry Pi 3 such that the leads on both align. Press firmly to bring leads into place.
- Important:Pause here until Raspberry Pi 3 B+ is formatted according to Programming instructions. One raspberry Pi is functioning as intended, proceed in installation process.
- Insert Raspberry Pi 3 into bottom of case. Note: Vertical posts may be trimmed with sharp X-Acto blade if needed. Pi should not be forced onto posts.
- Remove tape of Raspberry Pi Camera from Raspberry Pi 3 B+.
- Place Haur-de-boite_all onto Raspberry Pi Case Bottom.
- Align strip of Raspberry Pi camera with available slot of Front Camera Right. Secure Raspberry Pi Camera to Front Camera Right using 2 2mm screws.
- Insert ribbon of raspberry pi camera into camera module on Raspberry Pi 3 such that the leads on both align. Press firmly to bring leads into place.
- Secure Case assembly to RepRap with wood Screws.
- Plug in all cables and ensure adequate connections.