open-ephys · cjsha · Mar 11, 2025 · Mar 12, 2025 · Apr 28, 2025 · Sep 16, 2025
diff --git a/README.md b/README.md
@@ -17,50 +17,20 @@ agnostic to how rotational measurements are taken.
 
 For more information, visit the [commutator docs](https://open-ephys.github.io/commutator-docs/).
 
-## Features
-
-- Supports up to two high bandwidth RF links up to 18 GHz
-- Optical table & 80/20 rail mountable
-- Remote control using JSON-encoded commands
-- Manual control using capacitive sense buttons
-- Indication LED
-    - Can be completely turned off
-- Advanced stepper driver (TMC2130)
-    - Voltage-controlled for silent operation
-    - Precise motion using step interpolation (256 uSteps/step)
-- USB powered and controlled
-    - Internal super-capacitor circuitry prevents loading the USB bus during
-      motion
-
-## Hardware License
-
-This work is licensed to Jonathan P. Newman and Jakob Voigts under CC BY-NC-SA
-4.0. To view a copy of this license, visit
-https://creativecommons.org/licenses/by-nc-sa/4.0
-
-The creation of commercial products using the hardware documentation in this
-repository is not permitted without an explicit, supplementary agreement
-between the Licensor and the Licensee. Please get in touch if you are
-interested in commercially distributing this tool.
-
-## Software/Firmware License
-
-Copyright Jonathan P. Newman
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+## Bill of Materials (BOM)
+
+The following BOM pertains to the commutator's mechanical design. You can find the electronics BOM in the [commutator-controller repo](https://github.com/open-ephys/commutator-controller/tree/main/pcb/manufacturing/bom).
+
+| Qty. | Part | Part No. | Description | Link |
+| --- | --- | --- | --- | --- |
+| 1	| Dual Channel Rotary Joint |	Spinner BN 153127C0001 or B Command RX-LW032-AFC-40000C01 | SMA-f (50 Ω), DC-18 GHz | [Spinner link](https://products.spinner-group.com/), [B-Command link](https://www.b-command.com/en/) |
+| 1 | NEMA 11 motor | 11HS18-0674S | 45mm length, 1.8 deg step angle, ~600mA max | [link](https://www.omc-stepperonline.com/nema-11-bipolar-1-8deg-9-5ncm-13-5oz-in-0-67a-4-6v-28x28x45mm-4-wires-11hs18-0674s) |
+| 1 | 3D printed case | Custom part | 3D printed | [link](https://github.com/open-ephys/commutator-dual/tree/main/mechanical/production) |
+| 1 | 3D printed motor gear | Custom part | 3D printed | [link](https://github.com/open-ephys/commutator-dual/tree/main/mechanical/production) | 
+| 1 | 3D printed commutator gear | Custom part | 3D printed | [link](https://github.com/open-ephys/commutator-dual/tree/main/mechanical/production) | 
+| 4 | M3.5 x 10mm socket head cap screws | 91290A382 | for attaching rotary joint to case | [link](https://www.mcmaster.com/91290A382) |
+| 4 | M3.5 washers | 98269A122 | [link](https://www.mcmaster.com/98269A122) |
+| 4 | M2.5 x 8mm socket head cap screws | 91290A102 | for attaching motor to case | [link](https://www.mcmaster.com/91290A102) |
+| 4 | M2.5 x 8mm button head screws | 91239A756 | for attaching PCB to the case | [link](https://www.mcmaster.com/91239A756) |
+| 1 | Control PCB | - | JLCPCB Stackup: JLC04161H-7628 | [link](https://github.com/open-ephys/commutator-controller/tree/main/pcb/manufacturing/gerber) |
+| 1 | eBOM | - | electrical components for assembling the PCB | [link](https://github.com/open-ephys/commutator-controller/tree/main/pcb/manufacturing/bom) |
diff --git a/mechanical/production/dual_channel_commutator_housing.STL b/mechanical/production/dual_channel_commutator_housing.STL
diff --git a/mechanical/production/gear-a.STL b/mechanical/production/gear-a.STL
diff --git a/mechanical/production/gear-b_dual.STL b/mechanical/production/gear-b_dual.STL
diff --git a/mechanical/production/gear_b_dual_channel.STL b/mechanical/production/gear_b_dual_channel.STL
diff --git a/mechanical/production/housing_dual.STL b/mechanical/production/housing_dual.STL
diff --git a/mechanical/source/11HS20-0674S.SLDPRT b/mechanical/source/11HS20-0674S.SLDPRT
diff --git a/mechanical/source/BN_153127C0001_rotary_joint.SLDPRT b/mechanical/source/BN_153127C0001_rotary_joint.SLDPRT
diff --git a/mechanical/source/b-command-RX-LW032-AFC-40000C01_rotary_joint.SLDPRT b/mechanical/source/b-command-RX-LW032-AFC-40000C01_rotary_joint.SLDPRT
diff --git a/mechanical/source/commutator-dual.SLDASM b/mechanical/source/commutator-dual.SLDASM
diff --git a/mechanical/source/dual_channel_commutator.SLDASM b/mechanical/source/dual_channel_commutator.SLDASM
diff --git a/mechanical/source/dual_channel_commutator_housing.SLDPRT b/mechanical/source/dual_channel_commutator_housing.SLDPRT
diff --git a/mechanical/source/dual_channel_commuttaor_housing.SLDPRT b/mechanical/source/dual_channel_commuttaor_housing.SLDPRT
diff --git a/mechanical/source/gear-a.SLDPRT b/mechanical/source/gear-a.SLDPRT
diff --git a/mechanical/source/gear-b_dual.SLDPRT b/mechanical/source/gear-b_dual.SLDPRT
diff --git a/mechanical/source/gear_b_dual_channel.SLDPRT b/mechanical/source/gear_b_dual_channel.SLDPRT
diff --git a/mechanical/source/housing_dual.SLDPRT b/mechanical/source/housing_dual.SLDPRT