Hi all hope you are all doing great, so i have decided to dive into the world of 3D printing!! exciting times.
im completely new to 3D printing!
so i built the printer with no issues followed steps for homing the axis and leveled the bed as needed.
when i go to print one of the test Gcodes the first layer is pretty rubbish, the 2nd layer seems to be ok but then around 3rd or 4th layer it comes unstuck from the bed and game over.
so my 1st question is to do with the bed temp, i have a weismic glass and the test print has a bed temp of 50 degrees, do i need to increase the bed temp to compensate for the glass? if this is the case will i have to open the gcode in cura make the change and then re save it?
and secondly where should the extruder sit in relation to the filement cooler? there doesnt appear to be a clearence issue what i wasnt sure was if the fan was cooling the filamant to quickly before touching the bed and so not sticking correcctly.
and finally my Z axis end stop is adjustable so is there a default placement for this.
thank in advance for all your help
James
gilman
2
Hi James
First, what kind of plastic are you using? I print with PLA at 200C extruder temp on glass and do not hear my bed. I did treat my glass with a few coatings of hairspray for stickyness. Other plastics may do better on a heated bed search around the internet or youtube some and you can get some ideas. If you do end up heating your bed you may want to put a delay into your start GCODE syntax is G4 P# where the # is in milliseconds to allow the heat to transfer up through the glass properly
Second question My extruder is a little less than 1mm lower than the fan. This is so that the fan doesnt hit the print as it moves around. But I dont think this is an issue as the fan should be off for your first layer. There is a setting in cura for initial fan speed which on mine defaulted to 0.
Third you want to set your z axis stop not too low and not too high so that you dont run out of travel with your bed screws when you try to level them.
Hope that helps
-Gil
