Updated as of 2026-02-27 ## General The LDO Guide is a bit confusing as the steps have a number in the blue circle, but then state "Step 1 of 16" underneath them. This errata references the "Step X of Y", generally under the "Installation" section of each page. ![[Pasted image 20260227125052.png|300]] ## Extruder V2 - Differences from the Stock Extruder Build Stock Extruder Build Guide: [1 - Positron V3.2 - Extruder \| LDO Motion](https://ldomotion.com/guides/1---positron-v32---extruder) If you're using the Extruder V2 (highly recommended!) -- it helps to look at the CAD for assembly help! - "Preparation for the Printed Part" - `Extruder Guidler (Accent Color)` - Insert M3x5x4 heat set insert. - `Z Endstop Extruder Motor Plate (Accent Color)` - Insert M3x5x4 heat set insert. - `Extruder Main Body` - Insert 2x M3x5x4 heat set insert. - Step 2 - "Install the Bottom Plate" - The bottom plate instead uses 2x **M3x8 BHCS**. - Step 7 - "Install the Thumbsrew" - The Extruder V2 does NOT use the included thumbscrew. - You must replace the Thumbscrew with a **M3x30 SHCS** as the thumbscrew head collides with the Extruder V2 main body. - It is possible the kit might not include this, if not, you will unfortunately need to self-source this fastener to use Extruder V2. - Step 8 - "Install the Endstop" - `Z Endstop Cable` from the Electronics Box. - `M2x10 Self Tapping Screw` from main fastener bag. ## LDO Guide - Section 2 - Z Column [2 - Positron V3.2 - Z Column \| LDO Motion](https://ldomotion.com/guides/2---positron-v32---z-column) - Step 8 - "Install the Z Belt Retainer Block" - The 2x **M3x10 SHCS** required were not found in any fastener baggy or in the printed LDO BOM Packing List... but they WERE present in the baggy labeled "Spare Fasteners". - This was true with a kit purchased Fall 2025 (Batch 3). ## LDO Guide - Section 3 - Z Drive [3 - Positron V3.2 - Z Drive \| LDO Motion](https://ldomotion.com/guides/3---positron-v32---z-drive) - Note: The Z Drive Stepper is the pancake stepper without a sleeved cabled. The one with the sleeved cable is for the Extruder. ## LDO Guide - Section 8 - Base Plate [8 - Positron V3.2 - Base Plate \| LDO Motion](https://ldomotion.com/guides/8---positron-v32---base-plate) - Step 9 - "Prepare the Front Bumper" - The front LED PCB is actually secured to the front bumper with 1x **M2.5x10 BHCS**. - ## LDO Guide - Section 9 - Final Assembly [9 - Positron V3.2 - Final Assembly \| LDO Motion](https://ldomotion.com/guides/9---positron-v32---final-assembly) - Step 3 - "Install the Motor to the Extruder" - Ensure sufficient grease is applied to the planetary gears and planetary cover! - The Extruder Motor is the pancake stepper that has the black sleeved cable. The Z Drive Stepper does NOT have a sleeved cable. - Step 9 - "Route the Belt" - The documentation states: "The belt goes into the hole of the printed part. (In order to give a better view, the hotend is not shown in this picture. **It should be in place.**)" - This is not accurate, the hot end is not installed until later (Step 12)! - 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!