Ender3-S1-<date>.bin

 - Stock marlin configuration for Ender 3 S1
 - Adds G2 / G3 Arc support
 - Adds G10 / G11 Firmware based retraction (Use M207, M208, M209 to configure)
 - Adds M600 - Filament Change
 - Adds M603 - Set Filament Load / Unload length
 - Adds M701 - Load Filament
 - Adds M702 - Unload Filament
 - Enabled Advanced OK
 - Enabled CLASSIC_JERK
 - Enabled S_CURVE_ACCELERATION
 - Supports Meatpack

NOTE:
Pay attention to the two versions of the motherboard for the S1, one is using a SoC STM32F1 and the other using a STM32F4:

* Ender 3 S1 printers that come with a firmware version 1.x.x have the STM32F1 chip.
* Ender 3 S1 printers that come with a firmware version 3.x.x have the STM32F4 chip.
* Check the version number on the STM32Fx chip itself to confirm your hardware version.
* Installing 1.x.x stock firmware or a compiled one to the target STM32F1 on STM32F4 mainboards might brick them! And vice-versa.

Where to put the firmware file on the SDCard:
* STM32F1 board: Put the *.bin file into the root folder.
* STM32F4 board: Put the *.bin file into a folder named STM32F4_UPDATE.

KNOWN ISSUES:
- If icons are missing in your screen, follow this forum thread

Firmware Variant Size Build Date Downloads Feedback Download
Ender3-S1-STM32F4-20260720.bin 192784 bytes 2026-07-20 00:23:46 UTC 0
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Ender3-S1-MarlinUI-STM32F4-20260719.bin 193068 bytes 2026-07-19 00:22:10 UTC 0
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commit 250a3ed74eb2a29da3764428bf09f3a69c191c69
Author: thinkyhead <thinkyhead@users.noreply.github.com>
Date:   Fri Jul 17 00:46:25 2026 +0000

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commit 250a3ed74eb2a29da3764428bf09f3a69c191c69
Author: thinkyhead <thinkyhead@users.noreply.github.com>
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Ender3-S1-MarlinUI-STM32F4-20260718.bin 193068 bytes 2026-07-18 00:22:11 UTC 0
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commit 250a3ed74eb2a29da3764428bf09f3a69c191c69
Author: thinkyhead <thinkyhead@users.noreply.github.com>
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commit 250a3ed74eb2a29da3764428bf09f3a69c191c69
Author: thinkyhead <thinkyhead@users.noreply.github.com>
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Ender3-S1-STM32F4-20260717.bin 192784 bytes 2026-07-17 00:23:36 UTC 0
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commit 90784e5da65f8017d7ada8561907e9838935ea63
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Thu Jul 16 02:59:04 2026 -0500

    🔧 Require pins as macros (#28487)

commit 057a86d475316bef963ad2c1e53b77939acf2806
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commit 2632e284a58cd3195e91fe0b96717621f399c334
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Thu Jul 16 00:08:45 2026 -0500

    📝 AGENTS.md for codebase and HALs
Ender3-S1-STM32F1-20260717.bin 195012 bytes 2026-07-17 00:22:54 UTC 0
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commit 90784e5da65f8017d7ada8561907e9838935ea63
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Thu Jul 16 02:59:04 2026 -0500

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commit 057a86d475316bef963ad2c1e53b77939acf2806
Author: thinkyhead <thinkyhead@users.noreply.github.com>
Date:   Thu Jul 16 06:57:30 2026 +0000

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commit 2632e284a58cd3195e91fe0b96717621f399c334
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Thu Jul 16 00:08:45 2026 -0500

    📝 AGENTS.md for codebase and HALs
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commit 90784e5da65f8017d7ada8561907e9838935ea63
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
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    🔧 Require pins as macros (#28487)

commit 057a86d475316bef963ad2c1e53b77939acf2806
Author: thinkyhead <thinkyhead@users.noreply.github.com>
Date:   Thu Jul 16 06:57:30 2026 +0000

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commit 2632e284a58cd3195e91fe0b96717621f399c334
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Thu Jul 16 00:08:45 2026 -0500

    📝 AGENTS.md for codebase and HALs
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commit 90784e5da65f8017d7ada8561907e9838935ea63
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Thu Jul 16 02:59:04 2026 -0500

    🔧 Require pins as macros (#28487)

commit 057a86d475316bef963ad2c1e53b77939acf2806
Author: thinkyhead <thinkyhead@users.noreply.github.com>
Date:   Thu Jul 16 06:57:30 2026 +0000

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commit 2632e284a58cd3195e91fe0b96717621f399c334
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Thu Jul 16 00:08:45 2026 -0500

    📝 AGENTS.md for codebase and HALs
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commit f44cb948c7480845826110fdab3000d0e2de4b91
Author: thinkyhead <thinkyhead@users.noreply.github.com>
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commit f44cb948c7480845826110fdab3000d0e2de4b91
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commit f44cb948c7480845826110fdab3000d0e2de4b91
Author: thinkyhead <thinkyhead@users.noreply.github.com>
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commit f44cb948c7480845826110fdab3000d0e2de4b91
Author: thinkyhead <thinkyhead@users.noreply.github.com>
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commit 27e5e60c6555359776f8ce9a0f680d319d9f3df3
Author: narno2202 <130909513+narno2202@users.noreply.github.com>
Date:   Tue Jul 7 07:39:53 2026 +0200

    🐛 Keep FT_MOTION active with Constant Jolt Trajectory (#28480)

commit 7c467d3709b775ee52c08fae8e59038b533407a9
Author: thinkyhead <thinkyhead@users.noreply.github.com>
Date:   Tue Jul 7 00:55:38 2026 +0000

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commit 27e5e60c6555359776f8ce9a0f680d319d9f3df3
Author: narno2202 <130909513+narno2202@users.noreply.github.com>
Date:   Tue Jul 7 07:39:53 2026 +0200

    🐛 Keep FT_MOTION active with Constant Jolt Trajectory (#28480)

commit 7c467d3709b775ee52c08fae8e59038b533407a9
Author: thinkyhead <thinkyhead@users.noreply.github.com>
Date:   Tue Jul 7 00:55:38 2026 +0000

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commit 27e5e60c6555359776f8ce9a0f680d319d9f3df3
Author: narno2202 <130909513+narno2202@users.noreply.github.com>
Date:   Tue Jul 7 07:39:53 2026 +0200

    🐛 Keep FT_MOTION active with Constant Jolt Trajectory (#28480)

commit 7c467d3709b775ee52c08fae8e59038b533407a9
Author: thinkyhead <thinkyhead@users.noreply.github.com>
Date:   Tue Jul 7 00:55:38 2026 +0000

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commit 27e5e60c6555359776f8ce9a0f680d319d9f3df3
Author: narno2202 <130909513+narno2202@users.noreply.github.com>
Date:   Tue Jul 7 07:39:53 2026 +0200

    🐛 Keep FT_MOTION active with Constant Jolt Trajectory (#28480)

commit 7c467d3709b775ee52c08fae8e59038b533407a9
Author: thinkyhead <thinkyhead@users.noreply.github.com>
Date:   Tue Jul 7 00:55:38 2026 +0000

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commit 4080dd2e1372f57a83906274d76025ba9790f317
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Sun Jul 5 20:09:51 2026 -0500

    📝 Planner comments, misc. corrections

commit d99857db398f60fbf00c8f3f9072b86eb7da5aaa
Author: thinkyhead <thinkyhead@users.noreply.github.com>
Date:   Mon Jul 6 00:57:27 2026 +0000

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commit 4e80e17a1febabf96ce9be1416192a1740466f21
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Sun Jul 5 18:40:46 2026 -0500

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commit 424ca609799919e6efe2c287a44e65019642138c
Author: Axel Sepúlveda <ansepulveda@uc.cl>
Date:   Sun Jul 5 20:17:12 2026 -0400

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commit 4080dd2e1372f57a83906274d76025ba9790f317
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Sun Jul 5 20:09:51 2026 -0500

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commit d99857db398f60fbf00c8f3f9072b86eb7da5aaa
Author: thinkyhead <thinkyhead@users.noreply.github.com>
Date:   Mon Jul 6 00:57:27 2026 +0000

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commit 4e80e17a1febabf96ce9be1416192a1740466f21
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Sun Jul 5 18:40:46 2026 -0500

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commit 424ca609799919e6efe2c287a44e65019642138c
Author: Axel Sepúlveda <ansepulveda@uc.cl>
Date:   Sun Jul 5 20:17:12 2026 -0400

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commit 4080dd2e1372f57a83906274d76025ba9790f317
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Sun Jul 5 20:09:51 2026 -0500

    📝 Planner comments, misc. corrections

commit d99857db398f60fbf00c8f3f9072b86eb7da5aaa
Author: thinkyhead <thinkyhead@users.noreply.github.com>
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commit 4e80e17a1febabf96ce9be1416192a1740466f21
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Sun Jul 5 18:40:46 2026 -0500

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commit 424ca609799919e6efe2c287a44e65019642138c
Author: Axel Sepúlveda <ansepulveda@uc.cl>
Date:   Sun Jul 5 20:17:12 2026 -0400

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commit 4080dd2e1372f57a83906274d76025ba9790f317
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Sun Jul 5 20:09:51 2026 -0500

    📝 Planner comments, misc. corrections

commit d99857db398f60fbf00c8f3f9072b86eb7da5aaa
Author: thinkyhead <thinkyhead@users.noreply.github.com>
Date:   Mon Jul 6 00:57:27 2026 +0000

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commit 4e80e17a1febabf96ce9be1416192a1740466f21
Author: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date:   Sun Jul 5 18:40:46 2026 -0500

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commit 424ca609799919e6efe2c287a44e65019642138c
Author: Axel Sepúlveda <ansepulveda@uc.cl>
Date:   Sun Jul 5 20:17:12 2026 -0400

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