Posted on December 5, 2018
Tools, Systems, and Supplies for 2019 Build Season
I’d like to consider some judicious upgrades and additions to the tools and supplies we have in the shop, and some of the systems we’re familiar with for building our robots:
Also, I’ve run across a couple of really good threads on Chief Delphi where teams talk about the different tools and robot parts they recommend for other teams:
A throatless (beverly) shear for $150: These will cut sheets of metal accurately and much faster than a bandsaw. The thread on CD even shows it cutting through 1/8″ aluminum.
Digital Calipers for $17: We need more accurate measuring, especially for CAD models of physical parts.
Better metal shears for $10: Sometimes we cut thinner aluminum and other sheets, we could do this by hand easier.
Two-handed riveter for $20: This is usable anywhere, including the pit, but gives some extra leverage to setting rivets. Additionally it has a bottle that collects the waste.
New flush cutters for $5 each: We need some new sharp flush cutters for electrical work and clipping zip tie ends flush.
New wire strippers for $24: Our wire strippers have seen better days and mangle wires frequently.
Big crimpers for $30: We don’t have good tools for crimping large wires like battery cables.
Square Crimpers for $21: Our round crimpers don’t always work very well and we end up with badly crimped ends.
Hole-Grip Clamps for $12 for pliers, $1.80 per clamp: These are essentially pins that can quickly and temporarily take the place of a rivet or bolt. Useful for assembly or temporary setups. Can also use these pliers with some Spring Clamps too.
Noga Deburr Tool for $14: For cleaning up plastic, aluminum and steel edges. It’s handheld so we could bring it to competition too.
Deburring wheel for bench grinder for $57: For cleaning up our many aluminum and steel edges. (Maybe we don’t need this as much if we have the handheld one above)
Laser tachometer for $20: We could actually know exact RPMs of belts, chains and wheels!
Loctite Threadlocker Stick for $20: A glue-stick version of thread locker, many teams mentioned this one.
Sliding extrusions for structure and linear motion: Our team has always struggled with linear motion. I believe an investment in a sliding extrusion system with v-channels could really help our abilities in this area.
Roller Chain: I think it may be time to raise our roller chain game and get better at it. The DarkSoul #25 chain breaker would allow us to no longer use master links, and there are lots of accessories we could use and even options to anchor chain to surfaces (for an elevator, for example), and different tensioning strategies. I think we should consolidate on #25 chain and get very proficient with using it for different types of mechanisms.
Versaplanetary Gearboxes: We’ve dipped our toe into using these, but I’d like to go all-in. They are great for auxiliary functionality on our robots (intakes, arms, mechanisms of all types). And the ratios are easily configurable. Let’s get a good set of ratios and adapters for different motors, shafts, and hubs. There’s a good CD discussion on what ratios to get.
Sliding lock with bushings for $3 each: These things are amazing! Teams use these for bumper mounting, and for quick-disconnecting of modules on their robots. I’d love to start using these in our designs. If you want to see how they are used take a look at this example.
NEO Brushless Motor and Controller for $40 + $75 each: There are teams out there who say these will be game-changing. They do have an integrated RPM sensor, which is even more interesting. And they do look really nice…
Sleeve Bearings: These would allow us to reduce the size of our mechanisms and axles so we don’t have to step drill bearing plates like we’ve been doing a lot lately.
Low-profile Bearings: For when you have high speeds, but still not a lot of space (looking at tight intakes and internal game piece routing)
Rollers: We need to get better at game piece intake and manipulation. Having a good selection of rollers and such can help that.
Pressure-Relief Valve for $5.26: Protects against damage to pneumatic components from too much pressure. These and the norgren ones are the only legal components for the 125 PSI pressure limit. And the norgren ones cost $45 each.
2 Meter Distance Sensor for $18: These would be super useful for lining up on field elements for scoring or feeding. Very useful for every year.
Pneumatics Pressure Sensor for $30: It might be good to know how much pressure we’ve got at any point in time, which would allow us some hysteresis in activating a compressor on our robot (e.g. we don’t have to turn on the compressor as often)
Tapeswitch sensors: Good lead on contact sensors that look durable and can be trimmed to length.
LED Driver for $40: While it’s a little pricey, it would fit all our LED needs for the robot, with multiple patterns that we can easily trigger from the robot code. Not only good for theme/imagery, but also useful for human player signalling of current robot mode.
XT60 Connectors: These are a cheaper paired alternative to Anderson Powerpole connectors. Maybe we should consider trying them out instead?
1/32″ Polycarbonate: For sponsor panels or guards that don’t have to hold weight. Easy to work with and cheaper than 1/16″ or 1/8″
Low Friction Tape: Used for surfaces that slide against each other.
Disk brakes: This one’s pretty far out there, but I thought it was interesting. There have been times where we wanted to be able to stop rotation. This could be used for drive, yes, but more importantly it could be spring-loaded to stop a climber from falling, but with a manual release for taking the robot down after competition.