G0/G1 Vs G2/G3 Commands Arcs Vs Lines - Snapmaker Forum Trang chủ » G0 G1 G2 G3 Cnc » G0/G1 Vs G2/G3 Commands Arcs Vs Lines - Snapmaker Forum Có thể bạn quan tâm G0 G90 G54 X0 Y0 G0 G91 G28 Z0 G0h G0h 1b0 G0h 1c0 G0/G1 vs G2/G3 Commands Arcs vs lines Snapmaker 2.0 (3-in-1) colinjlyon November 4, 2020, 7:04pm 1 Hey everyone, I’m new to the 3d printing world and im super excited to get my new SM probs part way through next month. ive started reading and looking into various setups for software as from what i have seen LUBAN is pretty limited and fusion has just changed their licence terms removing a bunch of stuff… One of the things that i have run across is a script called Arc Welder. looks pretty cool. i have used a few laser cutting tools at work and one of the things we do is clean up the file pre cutting by removing lines that are too small for the laser to handle by replacing them with arcs. so this script really caught my eye. what i need to know is this, DOES THE SM2.0 interpret arc commands, or does it only implement small lines to create arcs. from what i understand when the file is sliced, arcs are commonly made into lines. the more detail required, the more small lines are created to makeup that “arc” THANKS IN ADVANCE!!! 1 Like brent113 November 4, 2020, 7:21pm 2 G2/G3 are enabled as small line segments, not true arc motion. Specifically, a minimum of 24 segments per circle, and 1mm per arc segment. Additionally, internally, it splits all motion, even straight lines, into 5mm segments for the purpose of bed levelling Z tracking with 3DP (not laser or CNC though). image743×160 9.39 KB 1 Like colinjlyon November 4, 2020, 8:23pm 3 so do i understand correctly then that for 3d prints, each layer will be made of however many necessary 1mm straight lines to produce that arc? that seems to me like it wouldn’t be able to make very smooth round objects though? it WILL use arcs for the CNC and Laser though? what is the reason behind this just out of curiosity? seems like the less “points” that have to be hit the faster things would go and less processing would be required… again admitting that i am a newb. brent113 November 4, 2020, 8:24pm 4 All arcs are 1mm lines, max. All 3DP motion is divided into 5mm lines, max. The reasoning is how the Bresenham algorithm is implemented, above my pay grade. Has to do with how the chip sends pulses to the stepper motors, and there’s lots of research in controlling motors in straight line motion. True curves are much more advanced, not many firmwares implement them, if any. Even GRBL, the main choice for laser and CNC firmware uses Bresenham and subdivides arcs. The processor is fast, processing speed is not a limitation. It’s a stepper motor control algorithm limitation as I understand it. It would be possible to make smaller lines per arc, but I guess they decided 1mm is an acceptable tradeoff between smoothness and processing. In practice it has good results. Snapmaker didn’t make that algorithm, that’s from Marlin. Plenty of documentation on how motion control works in the marlin docs, if you want to dig in, but it’s not easily digestible at all, this is advanced computer science. https://www.cs.helsinki.fi/group/goa/mallinnus/lines/bresenh.html Don’t ask me how to understand that, I have no idea haha. I just know that’s at the core of the firmware and any changes to that would be massive undertakings, possibly involving major leaps forward in the field of computer science and motion control. 2 Likes Related topics Topic Replies Views Activity Available Gcode commands Showcases & Tips 11 2241 August 27, 2024 G2/G3 GCode firmware support Snapmaker 2.0 (3-in-1) 3 479 November 4, 2024 CNC Gcode Estlcam Snapmaker 2.0 (3-in-1) 10 1580 October 30, 2023 Anyone Looked at Arc Welder? Showcases & Tips 9 2263 April 4, 2022 CNC routing arbitrary circles Snapmaker 2.0 (3-in-1) 11 608 April 25, 2024 Từ khóa » G0 G1 G2 G3 Cnc What Are The G0, G1, G2, And G3 G-Codes? (Detailed Analysis) Cnc Lathe G0 , G1,G2,G3. - YouTube Quick G-Code Arc Tutorial: Make G02 & G03 Easy, Avoid Mistakes SUMMARY OF G-CODES - MachMotion Master Your CNC - HOW TO USE G1, G2 AND G3 CODES ON A ... G Codes - LinuxCNC Multiple Arc CNC Mill Program G2 G3 IJ G1 Vs G2/G3 For CNC - Duet3D Forum CNC Programming Interpolation Get To Know Your CNC: How To Read G-Code - Make Magazine Only G0 And G1 (=no G2 And G3) - FreeCAD Forum Only G0 And G1 (=no G2 And G3) - Page 2 - FreeCAD Forum G Codes - Dlsweb..au
