All students must complete the Bray safety quiz prior to their first visit to Bray. Completing the quiz will give you access to the Bray user site where you can submit appointment requests for training and fabrication time.

Use of the Bray lathe requires lathe-specific training in the red zone, which must be booked by appointment.

ME and HFE students can use the Bray 3D printers and Bray design studio anytime using their Bray building access, which is 8am-midnight every day.

Students can book an appointment to use the laser cutter or just walk in to use it during shop open hours as long as it is not reserved or in use by someone else.

For more information about the Nolop 3D printers, review the training guide here.

Tutorials on using the Nolop laser cutter are available on the Nolop website here.

Grab a few water bottles and be ready to add or remove water as needed. The goal is to find the max weight your motor + hub can lift without the hub slipping or the motor stalling. Start with some water in a bottle. Attach it to the hub with a paper clip (through the hole placed ~15 mm from the shaft axis) and a length of string. Supply 12 V to the motor and see if it can lift the weight without slipping of the hub. Repeat (adjusting the amount of water each time) until you get to a weight that either stalls the motor or makes the hub slip around the motor shaft. Record this as your “slip/stall weight.”

How can you use your “slip/stall weight” and the distance between your shaft axis and paper clip attachment point to find your slip/stall TORQUE? You’ll need to enter this torque value in your Project 0 reflection (link provided in the Project 0 Canvas assignment).

For your Canvas submission, be sure to take a photo of your motor hub attachment and a video of it lifting weight. Compare its slip/stall torque performance to this class histogram created in a previous semester: https://docs.google.com/spreadsheets/d/1Y_V_8rgQhnSgg5z3wRCmGc2mLD-aFtRIoKs-uJ67k6A/edit?usp=sharing