![]() Adding weight of the filament it drags along its recommended to have acceleration limit set not above 8000mm/s 2. * The extruder itself without filament can handle acceleration up to 25000mm/s 2. Drive motor with stealth chop disabled!.Normal motor operating temperature: 65-75☌.Retraction speed: 120mm/s, reduce it to 30mm/s when printing TPU.Pressure advance: 0.02~0.03s – to be calibrated.instantaneous speed change (jerk): 600mm/min(RRF), 10mm/s (Marlin) (recommended 300/5) And many more small changes to improve mechanical accuracy and design look.Filament sensor add on with auto load and unload button add on feature.Motor position rotated by additional 10 degrees for easier maintenance and assembly.New smaller and more stylish PTFE tube input coupler.Mounting screws in line with filament exit path – improving housing stiffness and easier mounting.Tension mechanism with grab screw design.Machined PEEK secondary drive gear sleeve.High temperature resistant housings, GPA12.Stainless steel filament exit guide with 0.2-0.3mm clearance to drive gears for best TPU printing experience and extreme wear resistance when using abrasive filaments.Flipped drive gears – filament path closer to the extruder center for a more balanced design and perfect fit on delta printers as well.New motor design offers ~40% increase in extrusion force in real printing conditions and much improved acceleration performance.Smaller more compact dimensions ( 11.6% shorter).Shorter hardened drive gears 11mm vs 15mm manufactured by Bondtech.Improvements and features over previous versions of Orbiter: However, if the motor gets hot at 1.2A then I suggest you leave it at 1.2A, unless you experience skipped steps.A high precision, light weight, direct drive, planetary extruder system. So if you set 1.2A current in the M906 command in config.g then you should be OK but if the quoted 1.2A is RMS then you could increase it to 1.2 * 1.414 = 1.7A. I don't think the Marlin devs realised that the Trinamic datasheet used RMS current whereas Allegro used peak. Marlin variants for boards using Allegro drivers and that support software current control use peak current too but Marlin ports for boards using Trinamic drivers use RMS current. RepRapFirmware always uses peak motor current in its M906 command, because historically peak current was what you set using the Vref pot using Allegro drivers (before Trinamic drivers existed), and Duet was one of the first boards to have software-settable current. Vref is only relevant to old control boards or driver modules without UART or SPI control. It prints wonderfully at this setting but it just feels odd having to tune flow that said in Orbiter 2.0 configuration on Duet 2 wifi: however I have to set my flow at 73% to not over extrude. Should i start attempting to tune the motor current? Orbiters instructions are a little back and forth on saying its designed to be set to 1.2A and is fine to run hot but also to be sure to tune the motor current with the vref.Īnd then also I have my esteps dialed in for the extruder very consistently. When i was max flow testing however i did start getting up to 86c on the motors surface. but also that it shouldnt exceed 75c in a room temperature setting? ![]() I read more on orbiter projects website and it did say that its fine to run at 100c. so do i need to make an adjustment to the config at all? The motor did feel hot but it was staying below 75c for most of the tuning i was doing yesterday. I dont think the duet 2 wifi has any sort of trimmer pot or anything. ![]() but my main question is the instructions noting that it should be configured to be set at 1.2A for the motor current and later after klipper and marlin configurations it references tuning it according to the vref? I set everything up according to the instructions for reprap firmware. I've got it going pretty well and am in the process of tuning it. Hi! So Im setting up an Orbiter 2.0 on my new EVA printhead.
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