Helpful Resources

Various links used by our subteams.

Mechanical Training Checklist

This checklist is for new members to complete and to keep track of their progress.

New Members Mechanical

Get Started Guide

This is the 2017 Get Started Guide, with a brief introduction to the Robosub competition and Qubo, as well as instructions on how to sign up for the services we use.

Mechanical New Members

GrabCAD Workbench

GrabCAD is the product lifecycle management (PLM) software we use. We upload, store, and share CAD files here. The workbench works with all types of CAD files, allowing you the flexibility to work on the CAD program you are most familiar with.

Mechanical Design

Intro to Machining

This is a quick intro to machining and how to design for fabrication.

Mechanical Design

Apple Rubber O-Ring Guide

Apple rubber O-ring seal design guide is a good start in learning about several types of O-ring seals and general procedures O-ring groove design.

Mechanical Design O-ring

Parker O-Ring Handbook

The Parker O-Ring Handbook has been the go-to reference material for industrial O-ring design. It covers O-ring seal theory, how they fail, and material selection. Don’t simply take groove dimensions from their table, instead, calculate and verify them yourselves.

Mechanical Design O-ring

Simple Pressure Hull Tutorial

This tutorial includes steps to create a simple, watertight pressure hull with two endcaps.

Mechanical Design O-ring

Simple Pressure Hull Drawing

This drawing is a sample design paper for pressure hull, endcap, and O-ring groove design.

Mechanical Design O-ring

Fastener Basics

THis document shows the basics of fastener types and features. The standard bolts we use are 10-32 socket head screw for exterior, and 4-40 socket head screws for interior of pressure hulls.

Mechanical Design Fastener

NASA Fastener Design Guide

This comprehensive guide from NASA details how to property design fastener components, install them, corrosions, failures, installation torques, and fatigue calculations.

Mechanical Design Fastener

NASA Engineering Drawing Guide

NASA design guide is a comprehensive description for various engineering drawing features.

Mechanical Design Drawing

Qubo I Critical Design Review

This is the folder containing R@M 2016 Robot critical design review slides and notes. Mechanical design was a bit outdated, but focus on understanding the structure and proceeding of a design review.

Mechanical Design Design Review

McMaster Carr

McMaster Carr offers a great selection of industrial components and raw materials. We commonly source acrylic tube, O-rings, fasteners, adhesives, aluminum rods, machining tools, and valves from them. Their main attraction is a large inventory and one-day shipping.

Mechanical Vendor

Blue Robotics

Blue robotics is our main provider for thrusters, penetrators, and depth sensor. They offer affordable and reliable marine thrusters, T100 and T200 series. Their watertight, single-use penetrator populates both of our electronic endcaps.

Mechanical Vendor


A good source for acrylic tubes. ePlastics offers a wide variety of high-quality plastic material.

Mechanical Vendor

Teledyne Impulse

Teledyne Impulse is a series of splash-proof underwater electrical connectors. These “sub-conns” allow us to tether the robot underwater and supply shore power to it. If needed, you can email them for quotes.

Mechanical Vendor

Amazon / Small Parts

Amazon is a great place to purchase 3D printer filaments for the SSL printers. Tools like dial calipers, or COT parts (like buoys) can also be purchased from here.

Mechanical Vendor

Peifer Waterjetting

Peifer offers affordable water jetting services. Qubo's side panels were machined at Peifer.

Mechanical Services

Makerbot Innovation Center

We use the innovation center for most 3D print prototyping jobs. They charge $0.10 per gram and have more than enough printers to ensure a quick turnout time. This means we can quickly print a placeholder for a attachment and use it on robot before the actual part is fabricated.

Mechanical Services

ME Machine Shop

The ME machine shop, located at the basement of Glenn L Martin building, is the primary placed where we machine components for Qubo. It’s a complete machine shop with a manual lathe, manual mill, laser cutter, saws, and various other tools we need. The shop is open M-F from 8AM – 6PM.

Mechanical Services

SSL Machine Shop

Located on the first floor of NBRF, SSL machine shop is a convenient place to machine raw materials. Anyone wish to use the shop must go through an orientation with SSL and ask for permission every time.

Mechanical Services

R@M on Github

Our software is located on Github.


R@M Wiki

This is a link to the Robotics at Maryland Wiki, which includes tutorials for software members and how to get started.

Software New Members