Rat Rig Community [Unofficial]RRC[
Rat Rig Community [Unofficial]•2y ago•
6 replies
over_engineered

Printer Speed Settings for VCore 3.1 400

In an effort to dial in my print quality, I ended up down a rabbit hole and now believe I may have some of my wires crossed when it comes to various settings. I'm running an enclosed VC 3.1 400 with a BTT Octopus V1.1 w/ F446 chip and TMC2209 V1.3 Drivers. This is what my printer.cfg currently looks like for my stepper/driver/speed includes and what I have set for speeds in the overrides. I think I may have messed up and pulled these values from the performance ratos guide which appears to be for 50v 5160's. I've seen a number of different settings for the printer overrides (z_velocity and z_accel specifically) ranging from 15 and 20 all the way to 80 and 1700. Are those upper limits/performance configs restricted to the 50v drivers or can I run them on my current setup? I don't need insane speed, but would like to have things like the bed_mesh and z_tilt be relatively quick and reliable.
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Solution
yes and no. In reality this varies from printer setup to printer setup, so if in doubt, test and find out. For 24V the performance defaults are:
{
    "performance": {
        "accel": 10000,
        "velocity": 800,
        "z_accel": 600,
        "z_velocity": 50,
        "travel_velocity": 600,
        "travel_accel": 8000
    }
}
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