Uploaded December 2024 | Updated September 2026, 3 weeks ago
In this video, I shave down 75mm / 3" in the port/starboard width off the battery box. Will that be enough? I don't know, and won't until the next video. With the box thinned, I finish the rebates for the vertical separators and the mid-plate.
Happy holidays!
-=] Patreon:
- patreon.com/TheDigitalMermaid
-=] Channels that have Helped Me;
* @ProjectBrupeg
* @OffGridGarageAustralia @OffGridGarageAustralia
* @AcornToArabella
* @BillCarlson
-=] References;
DIY Mobile Workbench with Table Saw & Miter Saw
- tylynnm.com/diy-mobile-workbench-with-table-saw-miter-saw
Laguna Tools Dado Stack (image reference)
- info.lagunatools.com/the-incredible-dado-blade
Shaving My Box - Battery Prototype Pt. 2
-=] Chapters
0:00 - A New Plan
1:38 - A Plan to Remove the Cells In-Situ
2:46 - How Much Can The Box be Shaved?
3:58 - Loading, Swelling and Padding
6:54 - Cutting on the Floor and Better Ways
9:28 - Shaving My Box, Cutting Tongues
11:20 - Mistakes Upon Mistakes
13:13 - Vertical Support Rebates
14:41 - Yes, More Mistakes
16:41 - OK, Still More Mistakes, WTF...
18:44 - Learning From Mistakes
20:57 - Complex Design
22:19 - Rough Assembly
23:49 - Test Fitting After the Shave
25:18 - Mid-plate In-Situ Install Concerns
27:21 - Potential Height Savings
In this video, I shave down 75mm / 3" in the port/starboard width off the battery box. Will that be enough? I don't know, and won't until the next video. With the box thinned, I finish the rebates for the vertical separators and the mid-plate.
Happy holidays!
-=] Patreon:
- patreon.com/TheDigitalMermaid
-=] Channels that have Helped Me;
* @ProjectBrupeg
* @OffGridGarageAustralia @OffGridGarageAustralia
* @AcornToArabella
* @BillCarlson
-=] References;
DIY Mobile Workbench with Table Saw & Miter Saw
- tylynnm.com/diy-mobile-workbench-with-table-saw-miter-saw
Laguna Tools Dado Stack (image reference)
- info.lagunatools.com/the-incredible-dado-blade
Shaving My Box - Battery Prototype Pt. 2
-=] Chapters
0:00 - A New Plan
1:38 - A Plan to Remove the Cells In-Situ
2:46 - How Much Can The Box be Shaved?
3:58 - Loading, Swelling and Padding
6:54 - Cutting on the Floor and Better Ways
9:28 - Shaving My Box, Cutting Tongues
11:20 - Mistakes Upon Mistakes
13:13 - Vertical Support Rebates
14:41 - Yes, More Mistakes
16:41 - OK, Still More Mistakes, WTF...
18:44 - Learning From Mistakes
20:57 - Complex Design
22:19 - Rough Assembly
23:49 - Test Fitting After the Shave
25:18 - Mid-plate In-Situ Install Concerns
27:21 - Potential Height Savings

![Ep. 98 - The Motors Spin!
Holy long video! It took a lot of work, but the motors are both spinning from the same helm! Well, mostly, thar be bugs!
] Patreon:
- https://www.patreon.com/TheDigitalMermaid
] Channels that have Helped Me;
* @ProjectBrupeg
* @OffGridGarageAustralia
* @AcornToArabella
* @BillCarlson
Velcro Thin Straps
- https://www.velcro.com/products/back-to-school/900603 one-wrap-thin-ties/
Maerd Terminal Removal Tool (not affiliated)
- https://www.amazon.ca/dp/B08LQG4YHN
Silicone Stranded Wire
- https://www.amazon.ca/dp/B07TJXRGXM
Mermaids Rest Helm Code as of Video Release
- https://github.com/digimer/Mermaids-Rest/tree/58b8dc978b11ad6473806ddff419e48ecc13b119
Preciva Dupont Ratcheting Crimper Plier Set
- https://www.amazon.ca/dp/B07R1H3Z8X
Five Strand Round Braid Tutorial
- https://www.youtube.com/watch?v=KoPrFOpRCLA
Note:
- These are living documents that are being updated all the time, and may now be different from when this video was recorded.
Kelly Controller Pinout and Programming Plan
- https://docs.google.com/document/d/1qoHDtzcOTY1QK9pFImb2kukGdsc3yl-ahhXyBgp0OLk/edit?usp=sharing
Mermaids Rest - Helm Design
- https://docs.google.com/document/d/1GbOjI1D3vNJ4GQJFe-qQDrf0KEiA9gw_H1Upa65IYns/edit?usp=sharing
] Chapters
0:00 - Intro and Goal
2:01 - Helm Control Progress Update
3:18 - Testing the DACs
8:05 - Testing the ULN2003A Switches
10:19 - Moving the Rats Nest
10:59 - Changing the Golden Motor Ring Terminals
16:19 - A Brilliant Controller Cooling Recommendation!
17:23 - Repining The Hall Effect Sensor
19:22 - A Kitty Interlude & Story
21:44 - Making the Kelly Controller Wire Harnesses, Pt. 1
28:21 - Dividing the Foot (Brake) and Speed Switches
31:45 - Debugging STM32 and Switch Issues
38:40 - I May Have Damaged the Nucleo Board
40:50 - Making the Kelly Controller Wire Harnesses, Pt. 2
41:57 - Inserting the Waterproofing Boot
43:08 - Mating a Small Wires to a Big Pins
49:20 - Recovering From TWO Mistakes
54:39 - Making the Kelly Controller Wire Harnesses, Pt. 3
58:45 - Crimping Failure and Fix
1:03:19 - Cable Colour Conundrum
1:05:59 - A Story; Saving and Losing the Past
1:09:45 - Fair Winds, Ol Bev
1:12:11 - More Wires, More Colours, More Philosophy
1:15:45 - Five-Strand Braiding the Wires
1:18:26 - Circuit Board Plans
1:19:48 - Connecting the Kelly Controllers to the Helm Control
1:25:15 - Programming and Debugging the Kelly KLS7525N
1:33:31 - Comparing Controller Configs
1:35:05 - Spinning the 5kw, Unexpectedly!
1:37:24 - Calming My Nerves, Spinning the Motors!
1:45:02 - Whats Next? Ep. 98 - The Motors Spin!](https://i.ytimg.com/vi/ylXH46X1Iwk/mqdefault.jpg)

