I agree that the first layer setting are very heavy. It is close to the max capacity of an extruder. It will probably not melt the plastic quick enough. Resulting in cooler plastic being deposited and maybe even more resistance resulting in missed steps or slipping filamentresulting in less plastic than calculated by the firmware. So lines do not touch and/or are not hot enough to fuse together.
Skip to main content
Ah so you think my temp. Is to low I’ve been using maker geeks and pla is needed at 230 and I’ve been trying 200-210 so I’ll try that
No, I think you should decrease bottom layer Line width to 100% and bottom layer thickness to 0.2mm. You will extrude less than half the volume per time unit which is easier to heat up consistantly.
I get problems when set to 100
Hi Greg. I see initial layer thickness is still at 0,3mm. Please change to 0,2. Because at 200 percent and 0,3 you were extruding so much filament that it probably compensated a bit for z height error. But at the expense of lines not being wide enough to touch each other. If you do first layer at 100% and 0,2 any z error is much easier to detect. ( and loads on extruder are much lower) Because if to close to the bed, printwidth will become too wide. This becomes visible when infil patterns start to overlap. If to high, lines are not touching. A good workaround is to turn on raft. This will increase the succesrate of many prints and will also compensate most z errors. Good luck
I run my printrbot 1405 with 200% line with with a ubis 13s hotend with no problem but I have to agree espescially if you dont have the new printbot hotend to turn that down to 150% at least.
You can keep it at 200 or 150 then change the layer height to the first layer at .254 then the layer hight at .2064 as these values are calculated from the prusa calculator.
I just set it to 100% at 2mm inicial layer at. 2mm print and got this… I appreciate you guys input but all the help I am getting here is the only help I’ve gotten oh and to add I think the layer hight might be to high not really sure takes a wile for filament to stick but I’ll increase the width to 150%
1) Cool the printer.
2) Start the table leveling function.
3) See how many thicknesses of computer printing paper you can get between the print head / nozzle and the print bed.
4) Report back to us the number of layers of paper you can get between the head and build surface
To me it appears to be a gross error in the head to build surface distance.
Also the filament is too cool and the material already printed is cooling too much before the next layer is applied.
Add 20 deg C to filament temperature after you have adjusted the build table height to be correct.
Clean build surface with alcohol before starting next print.
Z height needs to be lowered by about -.25 mm also try moving the z probe closer to the hotend nozzle by screwing it down some as it gets better measurements this way.
Speed, 45mm, someone may have mentioned, but I don’t see it. On a large flat print like that 45, may be too fast. Having so much printed area, gives the lone first layer time to cool. And moving so quickly, it doesn’t have time to melt to 2 layers together. It also can stretch the extruded plastic, leaving it stressed and wanting to shrink and curl.
40mm/sec when in a hurry, generally I print 25 to 30. Someone with more experience may have a different opinion.