7/3/2023 0 Comments Cetus3d extended![]() ![]() Tiertime also offers a heated bed option (up to 100 degrees centigrade) and soon a steel nozzle upgrade. The Cetus supports PLA primarily but is also compatible with PET, PETG, TPU, TPE, PVA, and Wood-filled material. It’s designed for easy removal of prints while holding them securely in place while the printer is working away and negates the need for painter’s tape, hairspray, glue or your adhesive of choice. The surface is a textured, adhesive layer that sticks to PLA and similar materials. The coating recipe is a well-kept secret on Tiertime’s part. The non-heated print bed consists of 3 mm of aluminum fixed directly onto the Y-axis linear rail with a unique nozzle height error tolerant coating designed to secure the first layer of the print model to the bed. The combination of nozzle diameters and resolutions mean the Cetus is versatile enough to manage both detail-oriented final product printing and quickly-rendered prototypes or draft pieces. The compact single extruder is of the direct drive variety with interchangeable PEEK-made nozzles with diameters of 0.2 mm, 0.4 mm, and 0.6 mm with layer resolutions of 50, 70, 100, 200, 250, 300, and 350 microns. Belted stepper motors assure movement on the axis. The linear rails on each axis ensure quiet, precise functionality with the extruder rail controlling the X-axis, while the print bed runs on the Y-axis, and finally, the extruder rail moves along the Z-axis module. It uses Melted Extrusion Modeling (MEM) print tech with a cantilever design. The build volume is a modest 180mm x 180mm x 180mm that relative to the size and weight (12.1 lbs) of the printer is an amazing ratio. ![]() The chassis is constructed with high-quality aluminum extrusions that coupled with the linear rail axis modules, and the low-profile rubber footed mainboard, keep the model upright with a non-chambered, guts exposed, minimalist feel that belies an impressive rigidity. The minimalist, open-ended functionality also extends to modding as the Cetus is ripe for tinkering and add-ons. It’s small and lightweight, but remarkably sturdy while the small footprint and portability mean it is easily transported from home to office or wherever else it might be needed with minimal hassle. ![]() Combined they create a small form factor printer without any redundant, frivolous additions nor bells and whistles. Also needs some insulation between bottom of exension board and cover to prevent short circuit.The Cetus is a minimalist printer whose driving force springs forth from Tiertime’s desire to manufacture a 3D printer free of the complexity that unfortunately defines various models on the market with an emphasis on enjoyment and functionality.Ī quick look at the Cetus reveals a simple, yet intelligent design based on six core modular components: three-axis modules, a main board electronic module, a print bed, and an extruder. Modified spacer can be installed after cover was installed. I had to remove spacer on power switch to slide cover back in place. Also jumper needs to be installed on back of trinamic driver to get chip's serial connected to pin #5(PDN).Īfter board was installed it was hard to put cover back on. Motor pins on stepsticks were soldered pointing upward to get original connectors to fit. Printed board can be made with tonner transfer method since it's simple one sided design. I left extruder on original driver since it's not that loud anyway. Reference voltage on my printer is set to: x 0.15v, y 0.1v, z 0.2v. I think maximum current should be no more than 400mA. Can't find any information about cetus motors. My printer has stepper motors with 31 ohms coil resistance, so current has to be set low. Three steppers version has separate serial connections to drivers, so current can be set for each motor individualy. It also can be set by Attiny's firmware, but only for same current for all axis in four steppers version. By default current is set by adjusting referense voltage with the potentiometer. Original stepper drivers in Cetus3d printer are set for 32 microsteps, so I added Attiny85 to configure trinamic drivers for 32 microsteps. This is TMC2208 stepstick drivers extension board for Cetus3d mk3 printer. ![]()
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