## Thoughts while going through the build - GitHub: - **Folder Names: - **v3.2.2 (Current Release)** - CAD - STLs - **BOM** - BOM.md - **v4 (Future Release)** - **Mods and Experimental Features** - It is extremely unclear what is a CNC part versus what is a printed part. - Consideration should be given to adopting Voron / Prusawire part naming scheme to clearly delineate between these. - Extruder V2 - `[a]_extruder_guidler` - Insert M3x5x4 heat set insert - `[a]_z_endstop_extruder_motor_plate` - Insert M3x5x4 heat set insert - `extruder_main_body` - Insert 2x M3x5x4 heat set insert - [1 - Positron V3.2 - Extruder \| LDO Motion](https://ldomotion.com/guides/1---positron-v32---extruder) - 2 step 1 - Place MK148ZZ bearing into `[a]_z_endstop_extruder_motor_plate` - Pay attention that the top of the shaft and the bearing should be flush. - 2 step 2 - Insert the 2x M3x25 BHCS through the main body - Cover with `extruder_bottom_plate` - ==Secure with 2x M3x8 BHCS== - ==These are pulled from the main fastener kit bag. These might not be extra, so we need to source separately.== - 2 step 3 - Shaft+Bearing+Idler Gear into Guidler - Note the teeth on the 4x16 shaft! - Teeth goes in last (teeth end is the end with the chamfered opening) - Press in until full seat - 2 step 4 - Check filament path and adjust position of gear. Tighten set screw. - 2 step 5 - ==Need 1x M3x25 BHCS== - ==Not sure if there is a spare of this -- I think NOT. Source separately...== - Take care not to overtighten! - 2 step 6 - Remove any rubber from rear of ECAS - 2 step 7 - Thread a washer (in fastener kit) and a 1x5.9x11.3 spring through the M3x30 thumbscrew and install the thumbscrew into the printed part. - Shim Washer - 3x6x0.5mm - Stock M3x30 thumbscrew is too short -- the knurled head collides with the body. - CAD shows M3x36mm Thumbscrew - [Extruder V2 \| Positron Wiki](https://wiki.positron3d.com/en/Printers/Positron/Hardware/Extruder-V2) - ==Shows M3x30 SHCS== - ==Would be improved with a second shim washer at the top (not sure if there are extras in the kit)== - 2 step 8 - "Z Endstop Cable" from Electronics Box - "M2x10 Self Tapping screw" from main fastener bag - {MOUNT TO Z RAILS BEFORE PROCEEDING} - 8 - Base Plate - Step 9: Should read **M2.5x10 BHCS** (according to CAD) for front LEDs - [9 - Positron V3.2 - Final Assembly \| LDO Motion](https://ldomotion.com/guides/9---positron-v32---final-assembly) - ==Extruder Stepper is the one with the black sleeved cable.== - 9 step 3 - ==Ensure sufficient grease== - 9 - Step 8 says to install X Rail... Step 9 says that Hot End (from Guide 6) should be installed.... you actually attach it in Step 12! ![[Pasted image 20260125193848.png]] - - Guide 2 - Z Column - Step 15 - The 2x M3x10 SHCS do not exist as a fastener baggy anywhere in the kit OR in the printed LDO packing list BOM... - EXCEPT in the "Spare Fasteners" collection. - *This should be clarified as it is confusing and forces the user to go searching for parts that don't exist or seem like they are otherwise missing...* - Guide 3 - Z Drive - Clarify which pancake stepper is which. Z Drive Stepper does not have a sleeved cable. ## Misc Notes Posiberry should be the new default per Nomad ![[Pasted image 20251212155841.png]] Fix Positron startup animation. “ I believe this is the command that told plymouth to fix the animation back to the positron one. ```sudo plymouth-set-default-theme -R positron-bgrt``` The command to see the full list of available animations already downloaded should be: ```plymouth-set-default-theme --list``` Plymouth is the utility for the animation, there is a huge list of available animations that can be downloaded, as it is/was common used for Android devices.” ## Positron "Protomolecule" Build - Completed build on 2026-01-26 - Installed Posiberry. - Setup WiFi. - `PID_CALIBRATE HEATER=extruder TARGET=200` - Save Config / Reboot - `PID_CALIBRATE HEATER=heater_bed TARGET=60` - Save Config / Reboot - `SHAPER_CALIBRATE` - `SAVE_CONFIG` - Set printer name to `Protomolecule` - SSH default creds are pi / posiberry - Setup GitHub Backup for Klipper via KIAUH - [Installation - Klipper-Backup](https://klipperbackup.xyz/installation/#2-kiauh) - Created github repo: "protomolecule-klipper-config" - Created a fine-grained personal access token with write permissions to this repo (protomolecule-klipper-config-token) - "Contents" --> Read/Write - Installed Klipper-Backup through KIAUH and fed in the personal access token. - Updated to latest official configuration! - Ran `Z_ENDSTOP_CALIBRATE` and `SAVE_CONFIG` - Leveled Bed: [Bed Leveling \| Positron Wiki](https://wiki.positron3d.com/en/Printers/Positron/General_Care/Bed_Leveling) - Original Rotation Distance = 4.637 - Pass 1: 103mm - 4.637 x (103/100) = 4.776 - Pass 2: 99mm - 4.776 x (99/100) = 4.728 - Pass 3: 101mm - 4.728 x (101/100) = 4.775