(I’ve been hoping someone would make a thread for smaller, not-full-robot CAD releases. I haven’t found one, and if anyone else wants to use this thread to post their own assorted parts, very last minute, feel free)
I’m an alum of 948, but I’ve been doing design work over the past couple of months on my own. The chances of this getting used in-season are low, but just in case, here’s all of the stuff I’d like to share for R303 reasons.
Keep in mind I’ve built exactly none of these, so I have no idea what real-world constraints exist on these. That said, feel free to ask questions or give comments or feedback.
Configurable Elevator
Based off of TTB and FRCDesign’s 2 stage cascade, this one aims to be a little more compact (and cheaper). The continuous designs were going to be some sort of cable-driven system, but I never finished it.
Features:
- Configurable width, height, stage count, rigging type, and more
- Uses REV’s new End Mount Bearing Blocks (SDS bearing blocks work too)
- Uses TTB’s chain mount blocks and dyneema pulleys
- Ratchet-based cable tensioning system
Intake Rollers
NRG will be using something similar to this in 2025, game pending. This version is very based on 3847’s 2024 CAD (as in, nearly every major dimension is from their endcaps). Plenty of other configurable rollers exist at this point, I just like having my own, and I do think there are a few advantages.
Features/Major differences from 3847:
- The same endcap is compatible with both 3847-style and stub hex
- Configurable to pulleys, 2 (ish) different gear types, polycord, and nothing
- Configurable length, endcaps, and more
Assorted Pulleys, Gears, and Plates
Not much to say here. Generally things to make my life easier, and not have to fiddle with so many knobs and dials when importing pulleys and gears. Also, a fair number of COTS items with minor changes.
Drivebase Generator
A parts-studio based drivebase (and bumper, and layout sketch) generator. This is useful because it allows for bellypan or tube modifications, additional crossbars, or anything else. The downside is it adds a lot of redundant entries to Onshape’s BOM, but I thin that’s a reasonable tradeoff. It only supports Mk4is, with a hole-filled bellypan, though it’s not impossible to add others.
Features:
- Configurable dimensions, tube types, and bellypan options
- Small, built-in origin cube (shoutout to the FRCDesign people for the featurescript)
I hope this is helpful to someone. If not, thanks for reading to the end!