Uploaded July 2025 | Updated September 2026, 2 hours ago
This week saw a lot of frustration with Onshape's FeatureScript, but the end result is a much-improved process to create a standard parts library, and a big change to how the base of Ball Butler will be actuated!
Work has also begun on a testing rig to validate the feasibility of an almost entirely mechanical throwing mechanism - an idea I'm very interested in!
Filmed on July 11th, 2025
=========== Links Specific to This Stream ===========
🔗 Motion Capture Data of Me Juggling:
drive.google.com/drive/u/2/folders/1mr2fu5Jrp4y6er7Wa5iQMWZVAHJSYiT6
🔗 Current Ball Butler Document:
cad.onshape.com/documents/b9a77ae444a199ae8fa4f0ef/v/fcd564345cf1826b59950c79/e/0eef08dd888af369e5dd61b1?renderMode=0&uiState=68705dbdcdccd91b2155144e
🔗 Mishin Machine video on Trochoidal Drives:
youtube.com/watch?v=VXcuryyRGbo
🔗 "Envelope" Onshape Featurescript Forum link and Onshape Document:
forum.onshape.com/discussion/16076/feature-script-roll-form-die-how-to-subtract-transformed-parts-in-a-loop
cad.onshape.com/documents/8debf48a92e4eff2ad42217d/w/a8176d7619e9aff1cac8d3e6/e/4a3af5cbdf6a64e5fdb2e136
🔗 Bevel Gear Featurescript and Forum Which Includes Other Gear Types:
forum.onshape.com/discussion/20956/feature-script-for-spiral-bevel-gears
cad.onshape.com/documents/f7653ecf9bfe2fbd9bf129e3/w/15645947644b599077050134/e/6478ce629fe76ce59e1ee813
🔗 Spring Hand Testing Document:
cad.onshape.com/documents/07f35b7e3b9faf430f3b7e24/v/b5d81a1378a37e9c01875e67/e/fdd702fce71d74fbc51be7bd?renderMode=0&uiState=68705dcde7ff2963bd8eaa68
🔗 Washers Library:
cad.onshape.com/documents/e13896240e5c62a8c8169109/v/a346f7db88b23f7d10ceaee9/e/d89769ac438c3af5bd826db3?configuration=InnerDiameter%3D0.005%2Bmeter%3BOuterDiameter%3D0.01%2Bmeter%3BThickness%3D0.001%2Bmeter&renderMode=0&uiState=68705e22335ead6ab00a593a
🔗 Custom Part Naming FeatureScript:
cad.onshape.com/documents/ad13d878c959da0a18b3ccd3/v/b2aa967505e07b601b7d38cd/e/5ade240d6b17cf0b247cbb3d?renderMode=0&uiState=68705d8e335ead6ab00a58ca
================= General Links =================
🔗 Here's a link to the project's Github page:
github.com/Project-DeepBlue-Juggling/Jugglebot
🔗 Link to the main Onshape Assembly:
cad.onshape.com/documents/4d6545620c55797d3bb36f68/w/42ced3a9fe5d1bf7afc6efff/e/bf84687f92e1fd7b5e47b388
🔗 And to the project's Zulip site:
pdj.zulipchat.com
🔗 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
00:18 - Stream Starts
01:19 - Fun Tangential Thought: Juggling Room
13:35 - Feedback: Why BLDC Motors?
21:55 - Feedback: Why Worry About Impacts?
27:08 - Feedback: Why Use Belts at All?
29:00 - Bye-Bye Belt Drive!
1:06:18 - Feedback: Off-Axis Encoder with Gears/Belts
1:13:10 - Is a Mechanical Thrower Feasible?
1:26:45 - Mechanical Thrower Testing Rig CAD
1:40:10 - An Aside on Printing With Supports
1:48:00 - Onshape Library Updates
2:05:55 - On Trad Climbing
This week saw a lot of frustration with Onshape's FeatureScript, but the end result is a much-improved process to create a standard parts library, and a big change to how the base of Ball Butler will be actuated!
Work has also begun on a testing rig to validate the feasibility of an almost entirely mechanical throwing mechanism - an idea I'm very interested in!
Filmed on July 11th, 2025
=========== Links Specific to This Stream ===========
🔗 Motion Capture Data of Me Juggling:
drive.google.com/drive/u/2/folders/1mr2fu5Jrp4y6er7Wa5iQMWZVAHJSYiT6
🔗 Current Ball Butler Document:
cad.onshape.com/documents/b9a77ae444a199ae8fa4f0ef/v/fcd564345cf1826b59950c79/e/0eef08dd888af369e5dd61b1?renderMode=0&uiState=68705dbdcdccd91b2155144e
🔗 Mishin Machine video on Trochoidal Drives:
youtube.com/watch?v=VXcuryyRGbo
🔗 "Envelope" Onshape Featurescript Forum link and Onshape Document:
forum.onshape.com/discussion/16076/feature-script-roll-form-die-how-to-subtract-transformed-parts-in-a-loop
cad.onshape.com/documents/8debf48a92e4eff2ad42217d/w/a8176d7619e9aff1cac8d3e6/e/4a3af5cbdf6a64e5fdb2e136
🔗 Bevel Gear Featurescript and Forum Which Includes Other Gear Types:
forum.onshape.com/discussion/20956/feature-script-for-spiral-bevel-gears
cad.onshape.com/documents/f7653ecf9bfe2fbd9bf129e3/w/15645947644b599077050134/e/6478ce629fe76ce59e1ee813
🔗 Spring Hand Testing Document:
cad.onshape.com/documents/07f35b7e3b9faf430f3b7e24/v/b5d81a1378a37e9c01875e67/e/fdd702fce71d74fbc51be7bd?renderMode=0&uiState=68705dcde7ff2963bd8eaa68
🔗 Washers Library:
cad.onshape.com/documents/e13896240e5c62a8c8169109/v/a346f7db88b23f7d10ceaee9/e/d89769ac438c3af5bd826db3?configuration=InnerDiameter%3D0.005%2Bmeter%3BOuterDiameter%3D0.01%2Bmeter%3BThickness%3D0.001%2Bmeter&renderMode=0&uiState=68705e22335ead6ab00a593a
🔗 Custom Part Naming FeatureScript:
cad.onshape.com/documents/ad13d878c959da0a18b3ccd3/v/b2aa967505e07b601b7d38cd/e/5ade240d6b17cf0b247cbb3d?renderMode=0&uiState=68705d8e335ead6ab00a58ca
================= General Links =================
🔗 Here's a link to the project's Github page:
github.com/Project-DeepBlue-Juggling/Jugglebot
🔗 Link to the main Onshape Assembly:
cad.onshape.com/documents/4d6545620c55797d3bb36f68/w/42ced3a9fe5d1bf7afc6efff/e/bf84687f92e1fd7b5e47b388
🔗 And to the project's Zulip site:
pdj.zulipchat.com
🔗 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
00:18 - Stream Starts
01:19 - Fun Tangential Thought: Juggling Room
13:35 - Feedback: Why BLDC Motors?
21:55 - Feedback: Why Worry About Impacts?
27:08 - Feedback: Why Use Belts at All?
29:00 - Bye-Bye Belt Drive!
1:06:18 - Feedback: Off-Axis Encoder with Gears/Belts
1:13:10 - Is a Mechanical Thrower Feasible?
1:26:45 - Mechanical Thrower Testing Rig CAD
1:40:10 - An Aside on Printing With Supports
1:48:00 - Onshape Library Updates
2:05:55 - On Trad Climbing
