Extruder not following G code  

RE: Extruder not following G code

Hi Bob,
you don't seem to have attached a photo, 

I suspect this is because the process of attaching a photo, is problematic in this forum. 

for best results, 
I put my  'insertion point / cursor' at the point where I want the picture to be inserted,
Next I ensure that the bottom of the text insertion window is visible at the bottom of my screen,  then I open a reduced size  File manager window, to select and drag the picture into the bottom of the text input window, when the picture is in the right position the screen in the insertion box, will change colour,   (Like the image below)

at this point you unclick the mouse to drop the image into the screen, then you will get a window like this
In the bottom right hand side there is a 'Link to:' option, if you choose 'Media File' and then click 
'Insert into post'

the picture will be inserted in a format where it can be clicked to enlarge... 
(you should only need to do the 'Link to : Media file' bit once and the forum should remember your setting... 

Good luck, 
Joan

RE: Extruder not following G code

Thanks Joan - I'm new to this forum - in fact any forum but looks like this has worked

cheers

RE: Extruder not following G code

Posted by: @bobcohen

The extruder is 'laying' down filament in mid air (bridging) across a cylinder. The photo shows the extruder not completing a fill operation before moving off to the next location - somewhere across the other side of the cylinder, leaving behind a full thickness of filament.

What is happening is that the extrusions are not adhering well, so are being pulled taut as the nozzle moves around the inside cylinder. There are several things you can try independently or together:

• Slow down. If speeds are too fast, the filament may not have sufficient time to bond with the layer below. Try dialing speed back to 50% using the front knob as this occurs and see if it helps.
• Reduce layer height. If your layer height is too high, there can be insufficient contact between a fresh extrusion and the layer underneath.
• If you are printing threads, there are severe overhangs along the threading. Wider extrusion widths may help provide more contact with the layer below.
• Increase temperature/decrease cooling. Hotter temps will help the layers adhere together better.

For more suggestions, save your part & settings in a 3MF project file, zip it, and attach it to a response so we can see the details of your print and settings.