Starting to get into some fine tuning on the 3D printer…

This is starting to get interesting… My PTFE liner mod is still holding up… Continous printing so far…

I’m thinking I should make a filament cleaner…  repercussions of the last  clog really screwed me up..

I was looking at filament cleaners on thingiverse and I stumbled on the link for the MK-7 extruder…. What’s curious is the glowing reviews…

Seeing the the qu-bd was it’s clone. seems like the MK-7 should have had the same issue…  go figure..

Anyway… Here’s a link for filament clearners .   There’s a bunch of options I need to perculate on this a bit…

Tonights print was spool bearing adapters..   For some reason, this print has been problematic for me…   This go around,  I had the table well aligned and the tip about a sheet of paper way from the table (Guestimating .004)   Since I have alignment close to perfect, I had the first layer print out sort of mushed…  This compounded for the first couple of layers  and I had scraping which resulted in a slight skip.. which worked itself out. OTH… That was probably the best adhesion I’ve ever done.slightSkip

I’m looking at the Slicer settings and I should have trimmed down the thickness of the first layer.   This is something that I need to research a bit more.

Also, when I tried to raise up .120″ by going  G1 Z3.048 I fell signficantly short..  (I could swear that I had that done correctly…) I’m going to need to read up on the sprinter G-code commands

; generated by Slic3r 0.9.11-dev on 2013-07-25 at 14:05:06

; layer_height = .3
; perimeters = 3
; top_solid_layers = 3
; bottom_solid_layers = 3
; fill_density = .2
; perimeter_speed = 30
; infill_speed = 60
; travel_speed = 90
; nozzle_diameter = .35
; filament_diameter = 1.74
; extrusion_multiplier = 1
; perimeters extrusion width = 0.35mm
; infill extrusion width = 0.37mm
; solid infill extrusion width = 0.37mm
; top infill extrusion width = 0.37mm
; first layer extrusion width = 0.60mm

G21 ; set units to millimeters
M104 S215 ; set temperature
G28 ; home all axes
G1 Z5 F5000 ; lift nozzle
M109 S215 ; wait for temperature to be reached
G90 ; use absolute coordinates
G92 E0
M82 ; use absolute distances for extrusion
G1 F1800.000 E-1.00000
G92 E0
G1 Z0.300 F5400.000
G1 X64.964 Y36.002


Next steps:

  • Review proper settings for first layer…  (Review for guidence and make adjustment
  • Put .003 shim under the low side of the y-axis to see if we can improve parallelism..
  • Need to figure why a manual move doesnt seem to be working.  Probably should run a 20mm cube to see if it’s really 20mm height.   I need to verify that  my firmware settings are correct (hopefully) or fix them.
  • Assuming settings are correct, I might need to increase E just a tiny bit.2013-07-26-024118
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