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 ===========
π Latest Version of Ball Butler CAD:
cad.onshape.com/documents/b9a77ae444a199ae8fa4f0ef/w/58a21fff0c13c6549ee3697c/e/5104799fd810ebb1022a8885
π Ball Butler Github Repo (Includes the Schematic):
github.com/Project-DeepBlue-Juggling/Jugglebot/tree/main/Ball%20Butler
π Ball Butler Sensored Hand Data/Scripts:
github.com/Project-DeepBlue-Juggling/Jugglebot/tree/main/Ball%20Butler/zTesting/sensored_hand_testing
π Jugglebot repo where most recent work is going:
github.com/Project-DeepBlue-Juggling/Jugglebot/tree/refactor
π Engineezy Flappy Bird Video:
youtube.com/watch?v=qcKArylBdE0
π Latest Jugglebot CAD:
cad.onshape.com/documents/4d6545620c55797d3bb36f68/w/42ced3a9fe5d1bf7afc6efff/e/bf84687f92e1fd7b5e47b388
π MoJoCo Sim Information (to run it yourself!):
github.com/Project-DeepBlue-Juggling/Jugglebot/blob/demo/bb-led-two-ball-juggle/sim/JUGGLE_DEMO.md
π HTX Studio:
youtube.com/@HTXStudio
================= General Links =================
π Here's a link to the project's Github page:
github.com/Project-DeepBlue-Juggling/Jugglebot
π Link to the main Onshape Assembly:
cad.onshape.com/documents/4d6545620c55797d3bb36f68/w/42ced3a9fe5d1bf7afc6efff/e/bf84687f92e1fd7b5e47b388
π And to the project's Zulip site:
pdj.zulipchat.com
π 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)
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 ===========
π Latest Version of Ball Butler CAD:
cad.onshape.com/documents/b9a77ae444a199ae8fa4f0ef/w/58a21fff0c13c6549ee3697c/e/5104799fd810ebb1022a8885
π Ball Butler Github Repo (Includes the Schematic):
github.com/Project-DeepBlue-Juggling/Jugglebot/tree/main/Ball%20Butler
π Ball Butler Sensored Hand Data/Scripts:
github.com/Project-DeepBlue-Juggling/Jugglebot/tree/main/Ball%20Butler/zTesting/sensored_hand_testing
π Jugglebot repo where most recent work is going:
github.com/Project-DeepBlue-Juggling/Jugglebot/tree/refactor
π Engineezy Flappy Bird Video:
youtube.com/watch?v=qcKArylBdE0
π Latest Jugglebot CAD:
cad.onshape.com/documents/4d6545620c55797d3bb36f68/w/42ced3a9fe5d1bf7afc6efff/e/bf84687f92e1fd7b5e47b388
π MoJoCo Sim Information (to run it yourself!):
github.com/Project-DeepBlue-Juggling/Jugglebot/blob/demo/bb-led-two-ball-juggle/sim/JUGGLE_DEMO.md
π HTX Studio:
youtube.com/@HTXStudio
================= General Links =================
π Here's a link to the project's Github page:
github.com/Project-DeepBlue-Juggling/Jugglebot
π Link to the main Onshape Assembly:
cad.onshape.com/documents/4d6545620c55797d3bb36f68/w/42ced3a9fe5d1bf7afc6efff/e/bf84687f92e1fd7b5e47b388
π And to the project's Zulip site:
pdj.zulipchat.com
π 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)










