PDJ Weekly Livestream # 70 - Lots to Catch Up On! @harrisonlow
PDJ Weekly Livestream # 70 - Lots to Catch Up On!  @harrisonlow
Uploaded May 2026 | Updated September 2026, 3 hours ago
Quite a lot has happened since our last stream. Let me try to catch you up on the key milestones

Filmed on May 24th, 2026

=========== Links Specific to This Stream ===========
πŸ”— Latest Version of Ball Butler CAD:
cad.onshape.com/documents/b9a77ae444a199ae8fa4f0ef/w/58a21fff0c13c6549ee3697c/e/5104799fd810ebb1022a8885

πŸ”— Ball Butler Github Repo (Includes the Schematic):
github.com/Project-DeepBlue-Juggling/Jugglebot/tree/main/Ball%20Butler

πŸ”— Ball Butler Sensored Hand Data/Scripts:
github.com/Project-DeepBlue-Juggling/Jugglebot/tree/main/Ball%20Butler/zTesting/sensored_hand_testing

πŸ”— Jugglebot repo where most recent work is going:
github.com/Project-DeepBlue-Juggling/Jugglebot/tree/refactor

πŸ”— Engineezy Flappy Bird Video:
youtube.com/watch?v=qcKArylBdE0

πŸ”— Latest Jugglebot CAD:
cad.onshape.com/documents/4d6545620c55797d3bb36f68/w/42ced3a9fe5d1bf7afc6efff/e/bf84687f92e1fd7b5e47b388

πŸ”— MoJoCo Sim Information (to run it yourself!):
github.com/Project-DeepBlue-Juggling/Jugglebot/blob/demo/bb-led-two-ball-juggle/sim/JUGGLE_DEMO.md

πŸ”— HTX Studio:
youtube.com/@HTXStudio

================= General Links =================
πŸ”— Here's a link to the project's Github page:
github.com/Project-DeepBlue-Juggling/Jugglebot

πŸ”— Link to the main Onshape Assembly:
cad.onshape.com/documents/4d6545620c55797d3bb36f68/w/42ced3a9fe5d1bf7afc6efff/e/bf84687f92e1fd7b5e47b388

πŸ”— And to the project's Zulip site:
pdj.zulipchat.com

πŸ”— If you want to help support this project, the best way to do so is through my Patreon, here:
patreon.com/HarrisonLow

---
00:00 - Intro Countdown
00:28 - Stream Starts
03:20 - Ball Butler Works!
10:05 - The Sensored Hand
15:55 - Back from the Break
33:00 - Ball Butler's Accuracy Problem
43:20 - Measuring the Timing of Ball Butler's Throws
47:15 - Quick Demo of the New GUI
48:30 - Throw Timing Demo
57:40 - A Brief History of Jugglebot's Control
1:00:00 - Some Little Things Before Things Get Too Heavy
1:07:37 - Let's Implement Model Predictive Control!
1:25:14 - MPC Demo
1:30:55 - Is Jugglebot Compute-Limited?
1:42:05 - So Where Are We Now?
1:47:00 - MuJoCo Simulation
1:56:50 - My Claude Code Workflow
2:06:57 - The (Near) Future of These Streams
2:07:35 - Plan for Ball Butler Video(s)
PDJ Weekly Livestream # 70 - Lots to Catch Up On!PDJ Weekly Livestream # 44 - Squashing Some Bugs at Last!From Idea to Prototype: The Jugglebot Journey (so far)PDJ Weekly Livestream # 30 - UpdatePDJ Weekly Livestream # 47 - Geometry Optimization UpdatePDJ Weekly Livestream # 21 - Update + Chat with JonPDJ Weekly Livestream # 19 - Working SessionPDJ Weekly Livestream # 58 - Everything is a Lot Faster the Second Time Around!Project: DeepBlue Juggling #6.1  - The Hand V3  - Now with Added Compliance!PDJ Weekly Livestream # 50 - Jugglebot is Ready to be Reconstructed (at last!)PDJ Weekly Livestream # 9My New Linear Actuators are SO MUCH BETTER! | PDJ #21
Harrison Low |

PDJ Weekly Livestream # 70 - Lots to Catch Up On!

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