Tripod kinematics with large space for 3D printing

Bahr Modultechnik presents a newly developed system structure for 3D printers for FFF / FDM printing of large-format objects using the melt layer process. Due to the optimized modular construction principle, the CLLK 60 tripod proves to be an extremely economical solution compared to the market.

The minimized component requirement allows the device to be individually adapted to customer-specific printing tasks in terms of equipment and dimensions. For 3D printing, printing bed diameters of up to 900 mm and a maximum printing height of 1200 mm can be achieved.

The basic structure is the newly developed profile axes of the LL 60 series with an elegantly rounded exterior. High-precision ball screw spindles with corresponding ball screw nuts and an efficiency of over 90% enable exact positioning without interplay. Fork arms made of light, highly stable aluminum, aligning the printhead, are attached to the ball nuts.

To ensure unimpeded synchronism, the spindle nuts move along a roller guide carriage system along the profile axes. The additional grooves integrated into the new profile simplify the optional fitting of a wide variety of side frame coverings made of glass, Plexiglas, aluminum or composite materials. Due to the sandwich construction of the laser-cut steel plates for printing bed, control unit and roof cover, the entire system can be easily mounted and aligned with the profile axes.