North Texas Battle Group. SDP/SI. How to Make Springs. There are three things you'll need to read before you get started. First, the DISCLAIMER: Second, before you start to work with spring wire, read the section on safety . When you have read that section, read it again. No kidding . And third, about this document: I've tried to write for the benefit of someone who has (or can gain access to) basic hand and power tools. The sections of the document are arranged in logical order presuming a minimal knowledge of the metalworking trades in general or of springmaking in particular, and cross-linked to provide a forward path that leads from this point through the entire manufacturing process.
There's a glossary of spring terminology and an addendum , which should help you to define terms and find additional resources. In its first incarnation, this site was made in frames. Any comments or suggestions for improvement should be made to yours truly . If you already know about springs and want to get right to it , be my guest. Forward to Spring Design. Interactive gear template generator. This free online gear template generator is designed for making scale accurate paper gear templates which you can glue onto wood and then cut out with a bandsaw.
I recommend printing the gears with an ink jet printer. Even cheap ink jet printers print very scale accurate but Not all laser printers are accurate. You can still access the old (pre 2015) Flash based gear geberator Getting the printout to scale correctly, avoiding cropping Different browsers print at different scales depending on browser type and printer configuration. The default scale should be correct for firefox, Internet explorer 10 and Google Chrome. Use an ink jet printer I recommend using an ink jet printer. Printing the gear templates To print the gear template, use the 'Print' button, instead of printing the web page from the browser. The gear generator program that I created and sell doesn't need the scale calibration, and can paginate across many pages for larger gears.
The gear tooth generation is not perfect. Ball Bearings:Miniature bearing:Ceramic Bearing:Ball Bearing. DIY spot welder can join anything together, even copper. Circular Halbach using 12 rare earth magnets. Autonomous stabilization system for a helicopter. Hardware The essential components of the hardware system are Protoboard and MCU Push Buttons Gyroscope Voltage divider XY-Accelerometer Voltage regulator Z-Accelerometer Helicopter Motors - Optoisolator Circuits “Launch Pad” and IO Tether Power Supply The Atmel Mega32 microcontroller is mounted on the provided custom made protoboard. We added three ports, for interfacing with the motors and sensors. Port A is used for receiving the outputs from the sensors, Port C is used for the PWM outputs to the motors, and Port D is to interface with buttons that are used to turn on the helicopter as well as the debug LED which proved invaluable for the development of our project.
Due to the current that is required by the whole system, we replaced the voltage regulator with a LM340 5V regulator that can support our design's current needs better. We were able to sample a single chip rate gyro from analog devices (ADXRS150EB) . Software Results of the design. Third Hand. In the past I've used the third hands/helping hands available at chain electronics shops and have been frustrated with their usability. I could never get the clips exactly where I wanted them or it took more time than it really should to get setup right. I also wanted the ability to hold small circuit boards and alligator clips just don't do a very good job.
I was familiar with the adjustable coolant hose systems used to spray coolant at cutting tools in the machining industry and thought that would be a great place to start. I ordered various nozzles and hose segments from my favorite online machine tool supply company and started experimenting. This is what I came up with. While it still has plenty of room for improvement it has served me well over the last 3-4 years. These arms can be placed into pretty much any position and they will stay there.
Another nice feature is that you can make all sorts of attachments for holding whatever you need to work on. Canon FD lenses on an EOS mount.