LDO BabyBelt Pro V2.6 Printer Kit

The BabyBelt Pro is a conveyor belt 3D printer kit, built around an inclined belt bed. Prints run past the usual Z limit and slide off the end of the machine when they are finished, no clearing the bed between jobs. Queue a batch and let it run overnight. The LDO version is a validated V2.6 build with matched motors, integrated electronics, and a tested Klipper configuration, aimed at experienced makers and small studios doing short production runs.

Files can be found on the BabyBelt Pro GitHub page

Continuous Printing

A belt printer changes what a print queue looks like. The parts eject themselves as they finish, so the machine can keep working non-stop. Long parts can also run well past the height of the frame. The BabyBelt Pro brings those features to a compact, desktop sized footprint on an open, Klipper-based platform that you can modify and repair yourself.

LDO Improvements

• Integrated control electronics. An SKR Mini E3 V3 running a Klipper-based architecture, supplied with a working configuration, so firmware setup requires far less tinkering than a scratch build.
• Batch-matched stepper motors. LDO 42 and 28 series motors selected from consistent production batches. Mixed-source motors are one of the usual causes of vibration and inconsistent motion on DIY belt printers.
• BabyBelt toolboard and wiring. Wiring is consolidated through a dedicated toolboard rather than run point to point, which means fewer connections to fail and a quicker assembly.
• Optimized inclined belt bed. The bed geometry is tuned so completed parts release and travel off the end cleanly, which is what makes unattended batch printing actually work.
• Validated V2.6 BOM. The parts in this kit are tested for compatibility, eliminating the guesswork that holds up a lot of scratch builds.

Core Components

Everything below is included in the LDO BabyBelt V2.6 kit.

Published under GPL-3.0

Open Design

The BabyBelt Pro is an open source design from Rob Mink at Printcepts, published in full on GitHub under GPL-3.0.

It runs on Klipper firmware, so the macros and web interfaces used across the Voron ecosystem apply here too. Development is ongoing, with an active community on the community Discord.

Technical Parameters

Machine

Frame Inclined conveyor belt structure

Print Area Approx. 100 × 100 mm

Z-Axis Capability Infinite length printing

Motion

Motors LDO 42STH25 / 28STH40, batch-matched

Drive GT2 timing belt system

Control

Mainboard SKR Mini E3 V3

Display TFT35 touchscreen

Toolboard BabyBelt toolboard, integrated wiring

Firmware Klipper, configuration published

Hotend & Cooling

Hotend X1C / P1P compatible

Fans 3010 blower and 2510 axial

Power

Power Supply 24V 8.33A

Input 5.5 × 2.1 mm barrel with rocker switch