In the LightBurn screenshot above, you can see which settings you should pay special attention to. In the pictures above are examples of favorable and unfavorable movements. Movements along the y-axis should be as small as possible to prevent the object from sliding on the rollers. If you don’t want to change the steps per mm every time, you can use the LightBurn wizard. LightBurn then takes over the conversion of the lengths from the motif into the movements of the rotation roller. For this, LightBurn needs two parameters: “mm per rotation” and “Roller Diameter” (A in the following picture). These two values are explained quite simply, but the function is sometimes a bit complicated.

The steps/mm are set appropriately for the rotary in the firmware: in this case, the value corresponds to the diameter multiplied by pi (i.e., the exact circumference of a roller). Since the steps per mm are correct, a direct relationship is given. So: “mm per rotation = roller diameter * Pi”. Y-Axis: this one is working without additional hardware. Since the normal y-axis motor is connected to the same port, you need to physically disconnect one of them during operation (or use a switch like presented in the next chapter). You can’t connect both at the same time. Move the adjustable roller to adjust the distance between it and the fixed roller according to the actual situation. When the distance is appropriate, tighten the adjustable roller fixing bolts. If you have a Sculpfun S9, you can upgrade it to the improved x-axis mechanism from Sculpfun S10 with THIS UPGRADE KIT.Place the rotary axis in an appropriate position on the table, and connect the machine Y-axis motor cable to the rotary axis stepper motor. This is a perfect upgrade for expanding your engraving capabilities and adding variety to your projects. Designed to engrave tumblers and cylindrical objects with ease, this rotary roller is a must-have for any laser engraving and 3D printing enthusiast. Huge engraving space and 4 raising feet: SCULPFUN roller base design is lower and stable, and equipped with 4 sturdy metal raising feet, so that it has a larger engraving diameter of 6-150mm, which can meet more engravings. need. Metal feet are more solid than plastic feet, and the machine is more stable when engraving. Perfectly matched with engraving machine to engrave round objects】The One-piece rubber laser engraver rotary, hardness up to 70A, stronger friction, allowing you to perform 360-degree engravings on round or cylindrical objects such as cups, pens, bottles, pipes, bowls, drums and tubes and over-length plate engraving or cutting.

Test fire your laser at a low power, 5% or less, and make sure that your laser is focused to a tiny point. The options are described in the LightBurn documentation, but it is a bit hard to understand there for non-technical users, I guess. As mentioned, when you press Test, the roller rotates the small rollers once 360 degrees. So, the object (that might be lying on it) doesn’t even move all the way around (as long as it is larger than the diameter of the driven rollers). Set the steps per millimeter (“steps/mm”) correctly (firmware). The LightBurn assistant is not required and is not activated. Z-Axis: the controller board offers another port for a z-axis motor. You could also use this one. Since the Sculpfun board does not contain the stepper driver module for this axis, you need to add one yourself (like this one). Then you have another axis and can control the two motors independently. If you don’t plan to integrate a z-axis, I would recommend using this option because you have less (no) settings to switch between the modes. Move the tensioning wheel assembly to make the synchronizing wheel under tension, and tighten the fixing bolts.Step 2B is meant for machines that use two stepper motors for their Y-axis, such as the 3020 Pro Max, LC-60A, and 4030 PROVerXL. mm per rotation”: this is the slightly more complicated value. This value indicates how many millimeters LightBurn should send to generate a complete rotation of the roller. And here you have to distinguish two cases: Sliding adjustment of the shaft spacing: SCULPFUN roller adjusts the size of the space between the two shafts by sliding, and fixes the shaft by turning the knob by hand, which is simpler and faster than the traditional multi-stage fixing hole adjustment. Lightburn supports more formats: AI, SVG, DXF, PDF, HPGL, PLT, and RD for vector formats and PNG, JPEG, BMP, TIFF, TGA, and GIF for image formats.

A great upgrade for a cutting surface is a HONEYCOMB BOARD. It makes a big difference and the bottom side remains clean when laser cutting.Application: This machine can work with a number of different Sainsmart machines to engrave on materials with a cylindrical shape. Final note: this is not meant to push anyone into donating. As I said, the wiki will be free to use and stay free as long as I can afford this passion.