TAUT ONE – Large Format Printer

Many Years ago I thought about to print kayaks. The shape is not very complex considering printing. No big overhangs and so on… Just for prototyping, because the current way it is done, needs a lot of handwork. So just with the start of corona I started to build a printer.

TAUT ONE

Since my start in April 2020 i assembled three prototypes…. optimising this and that…

But the technical spec stayed the same:

• printvolume: 1000x550x1100mm3
• footprint 1170x770mm2(europalett)
• 1.75mm DualHotend automated selectable for two colours or soluble material(Dualoption integrated in the latest version)
• Duet Mainboard 6HC and Toolboards
• CAN-Connection to printhead – to reduce cabeling
• closed housing
• all motion parts are metal(except the belt)
• Wi-Fi
• integrated webcam useful for multi day prints….(based on raspberry pi)
• automated z-axis leveling of all z-axis
• meshbedleveling
• external cooling air for the printhead
• printhead can be easily opened and removed with 4 screws and 3 connectors – for external maintenance
• no milled parts – just lasercutting and printed
• Corexy motion system
• mostly internal cabeling
• 1500W heated bed made of 10mm Aluminium with 5mm glass
• z-axis geared 5:1(but belt driven – in my opinion ok for large format
• width can easily reduced(removing some external parts) to standard 80x200cm roomdoors
• Hermera Extruder – open to other products
• Mosquito Hotend
• Big Hotends with up to 1.8mm Nozzle size for high layer heights
• Corexy
• all steppers are outside the housing for better cooling
• printhead is cooled with external air
• target accuracy +-1mm in all directions….
• 3000€ material costs
• easy to build
• mostly no cheap parts from china
• filamentrunout sensor
• chamber temperature sensor
• automated cooling fans

electronics cabinet with clear acrylic doors

z-axis with belts

printhead with air and cable intake

printed with the 2nd version

printed with the 2nd version

printed with the 2nd version

a vase in vase mode with 1mm layer height – on the first version

one of the first prints

first version

Some images from the development phase….