LDO Positron V3.2 - Portable & Foldable 3D Printer Kit

The LDO edition transforms the original community design into a production-ready kit. We’ve reinforced key areas to ensure reliability, ease of assembly, and true portability—so you can build with confidence and take your printer anywhere.

Build with Ease, Print with Reliability, Ready for Travel

The LDO edition transforms the original community design into a production-ready kit. We’ve reinforced key areas to ensure reliability, ease of assembly, and true portability—so you can build with confidence and take your printer anywhere.

01. Hard-shell Carry Case

Upgrades “filament-box storage” to a rigid hard case for better impact resistance and safer travel. Also works well as a dedicated storage solution.

02. High-Transparency ITO Glass Heated Bed

Features a high-transparent ITO glass heated bed rated to 85°C.  It provides even heating, a premium aesthetic, and enhanced durability—perfect for a printer on the move.

03. Raspberry Pi Touchscreen Controller

Includes a 3.5″ touchscreen controller with Raspberry Pi CM4 and TF card pre-configured for KlipperScreen. Enjoy responsive, intuitive control even in mobile or on-the-go settings.

04. Genuine Gates Belts

The motion system is equipped with authentic Gates 2GT belts for smoother operation, greater consistency, and long-term reliability—no more variability from generic parts.

05. LDO Custom PCB System & Flexible Umbilical Harness

A streamlined electronics suite includes LDO’s custom mainboard, toolhead board (with integrated ADXL345 for easy Input Shaper calibration), switch board, and a flexible umbilical cable. The result is cleaner wiring and more reliable connections

06. Refined Assembly Experience

Together with the Positron team, LDO has optimized the build process from V3 to V3.2. The kit offers clearer instructions, better part alignment, and fewer rework steps—designed for a smooth, repeatable build.

Specs  & What's Included

A. Specs

Maximum printable size：180 × 180 × 165 mm (max)

Folded Size： 200 × 200 × 80 mm

Weight~3 kg(printer only); ~5.5 kg(with hard case)

B. Key Components

• Hard-shell carry case (travel-friendly)
• CNC-machined aluminum structural parts: base plate, motor mounts, key brackets
• Linear rails: SLR9 / SLR12 series
• LDO stepper motors: XY motors + Z motor + round motor for extruder
• 2GT belts, pulleys and idlers, etc.
• 3.5" touchscreen controller (includes Raspberry Pi CM4 module, display and TF card, etc.)
• LDO Positron mainboard + toolhead PCB + power switch board + bed/led PCBs
• Flexible umbilical wiring harness with connectors
• Pre-assembled hotend (includes heater, thermistor and fans, etc.)
• ITO borosilicate glass heated bed (200 × 200 × 3 mm) and related mounting hardware

C. Full BOM

LDO Official BOM: [Positron V3.2 Bom]

Note: Kit contents may vary slightly by production batch or sales channel. Please verify against the checklist included with your shipment.

Printed Parts (Self-print / Pre-printed Service)

Choose the method that best fits your tools, time, and preferences.

Option A: Print It Yourself (Recommended for Printer Owners)

Material Recommendation: PETG

Get Started: [Positron V3.2 STLs]

Option B: Order Pre-printed Parts  (For No Printer / Time-Sensitive Builds)

• Build Immediately: No 3D printer? No problem. Start your project as soon as the kit arrives.
• Simple Add-On: Select the “Pre-Printed Parts Service” during checkout. Parts will be carefully packed and shipped together with your main kit.
• Color Options: Standard two-tone (Primary + Secondary). 【For custom color requests】, please contact support or add a note to your order.
• Lead time: Made-to-order; typically ships ~4 business days later (adjust per production capacity).

Reviews & Build Experience

It's not just another desktop machine—it's a portable, playful tool made to go where you do.

Build Notes

Our detailed Build Notes supplement the official manual, integrating key LDO-specific instructions and community wisdom to ensure a smooth and efficient build.

• Follow with Confidence: The Notes clearly highlight which official steps to skip, modify, or pay extra attention to, eliminating guesswork.
• Avoid Common Pitfalls:  Critical reminders and kit-specific differences are consolidated in one place, helping you maintain a steady build rhythm and avoid rework.
• Simplified Workflow: Particularly for beginners, the electronics and wiring sequences are clarified for a more straightforward and less frustrating experience.

LDO Assembly Guides: [Positron V3.2 Build Notes]

First Print: Turn “It Moves” into “It Prints Reliably”.

Complete your build with confidence. Run this initial print sequence to validate core machine functions: extrusion, temperature control, motion, and dimensional accuracy.

What You Will Need

Slicer:  [OrcaSlicer]

Recommended test models:  [Test_Prints]

Note:  Voron_Design_Cube_v7.stl is the most widely used.

One-stop Resource Center 

LDO Official Assembly：[Positron V3.2 Build Notes]

LDO Official BOM：[Positron V3.2 Bom]

Klipper Configs & Macros ：[Positron V3.2]

Positron Project Home ：[Positron V3.2 Github]