top of page

Forum Comments

Flashforge 5M/AutoClippy
In Getting Started
Bill
Jun 20, 2024
Not at all. Bill
Need help; Mk4 Gcode Generator w/ digital 3d clippy
In Support
Need help; Mk4 Gcode Generator w/ digital 3d clippy
In Support
Bill
Jun 19, 2024
You say, "Right now the servo does a cut but it doesn't retract out of the hotend. Right now my 3Dc loads the first extruder and will make a cut for the 2nd but won't load the 2nd correctly My assumptions are highlighted yellow." Let's break this down... the servo cuts but it doesn't retract out of the hot end, but that's what the G0 E-40 is doing. That line backs the filament out 40mm (out of 44 for that extruder) so that there is only 4mm left as the tip below the drive gears. (Be careful here, that might be too small, on looser extruders.) Second, once you press the button, it will cut the filament. Now, in your gcode, you have a line not highlighted, G0 E-0 F2000, which isn't needed... not sure what it is. The second one is that E20... that's not correct. That's the part it should be pulling away from the blade and pushing the filament back into the hot end. So it needs to be something like G0 E40 to match your backout or 45 just to be safe. That will pull the filament away from the blade and release the filament above the cutter a. These two actions make sure there is no filament between the cutter and the drive gears... so the filament won't run into something. Once the buttons start to be pressed, then the 3DChameleon will present the new filament to the extruder. That must be timed properly... the extruder needs to start loading the new filament before the filament actually reaches it. This will insure the new filament will hit the old filament below the extruder's drive gears. But, you only want them to load into the drive gears enough to load the filament firmly... and then you can purge the old filament by pushing the new filament. You adjust the timing with the G4 for how far the 3DChameleon pushes it... and the E30 for how long you need the extruder to load... ideally, with the value of 30, it will start moving the extruder while the new filament is 15mm away from the drive gears and will load 15mm into the drive gears. Since you unloaded 40mm, you now have 25mm remaining, which your second block can continue to load the rest of the way. Adjust that value to get it to load the filament just before it starts the extrusion. That way it will complete the last mm or 2 in the purge block. Bill
1
3
Powering 3dChameleon from fan pin on BTT Octopus
In Support
Updated Prusa Profile for the K1 for Mk4?
In Getting Started

Bill

Editor
Admin
More actions
bottom of page