Jump to content
Ultimaker Community of 3D Printing Experts
Sign in to follow this  
petermeuris

First results

Recommended Posts

I have printed my first test objects All suggestions are welcomed.

6977184375_a07c052f32.jpg

So, here are my prints, 0.3mm layers, infill 30-70%, PLA 250°C:

- ReplicatorG with marlin firmware.

- Firmware: Marlin generated with BuildMeMarlin (awesome work Daid!), default settings exept baudrate/endswitches

Some problems:

1) Some times layers do not stick together. Too little material was extruded, filling factor not high enough ?

I just sometimes had to push the filament a bit manually. I cannot yet figure out how the extruder motor mechanism is supposed to clamp the thread anyway.

2) At start the PLA does not stick to the blue tape.

So ... way to go :-)

Share this post


Link to post
Share on other sites

I use slic3r, and I use the following settings:

 

bottom_layer_speed_ratio = 0.5duplicate_distance = 6duplicate_x = 1duplicate_y = 1end_gcode = M104 S0 ; turn off temperatureG1 Z+30 F3000;move Z up a bit and retract filament by 5mmG28 X0 Y0; home X axis and Y axisM84     ; disable motorsM107 ; turn fan offfilament_diameter = 2.95extrusion_multiplier = 1fill_angle = 45fill_density = 0.2fill_pattern = rectilinearfirst_layer_height_ratio = 1infill_every_layers = 1layer_height = 0.1nozzle_diameter = 0.4perimeter_feed_rate = 50perimeters = 2print_center = 100,100print_feed_rate = 50retract_before_travel = 0retract_length = 0retract_lift = 0retract_restart_extra = 0retract_speed = 40rotate = 0scale = 1skirt_distance = 20skirt_height = 1skirts = 2solid_fill_pattern = rectilinearsolid_layers = 4start_gcode = M92 X78.7402 Y78.7402 E926G28 ; home all axesM106 ; turn fan ontemperature = 220travel_feed_rate = 150use_relative_e_distances = 0z_offset = 0acceleration = 0

 

If you can print with these settings, then I am sure you can get a good and decent print :)

Onliest thing you need to change is the layer height. I could get up to 0.015, but then you manually need to make it stick to the bed. 0.05 is usually enough for high-quality prints. Note that it doesnt prevent it from stringing.

If you use skeinforge, try printing with the profiles that came with the repG software. They should work properly.

Share this post


Link to post
Share on other sites

With SkeinPyPy your settings should be right. So that's not it. You have serious under-extrusion. Most likely your filament is slipping. They look a lot like my first prints, which also had slipping problems.

Make sure your tension knob is tight enough.

Make sure your big gear is firmly attached to the bolt. (This was my problem)

Share this post


Link to post
Share on other sites

@Daid:

- I agree that this is serious under extrusion, i did not use the SkeinPyPy yet, I was using repG after I upgraded the firmware.

(I tried SkeinPyPy, I could check the SkeinPyPy settings, but was not able to find the executable to run the machine -linux version)

- This tension knob how is it kept in place ? see photo

6977507139_ce55150e00.jpg

I think I miss something if I turn the tension knob, the wooden/plastic part is not pushing the thread, it pushes the wooden/platic part out ...

Share this post


Link to post
Share on other sites
Yet another "Problem->Solved under 24h" thread. :)

This forum is awesome!

It ain't solved until we see a standard calibration Yoda printed ;-)

Share this post


Link to post
Share on other sites

I just printed another Yoda.

75mm/s, 10% infill, 0,1mm layer hight, Printed at 250*c from SD-card. Took about 4,5h to print.

Sliced with SkeinPyPy Beta3.

The problem on top of the head is that the Z platform tried to go to home position after the print was completed with the hot extruder placed right above the head.... :evil:

I don't know if that is due to that I might have pressed home button in GUI during print and that it was buffered and action taken when the SD-print was completed or if somethings wrong in the SD-print.

It seems like it ignores the homing of the axes when starting a print from SD.

Still uncleaned when I took the pictures.

Share this post


Link to post
Share on other sites

My next print is clearly better, the problem is solved.

6979950959_a8b53c630c.jpg

But it stopped in the middle, due to extruder switched off maxT is reached.

What happened, the connection at the extrusion head of the thermocouple was decoupled

during printing, and overheated the system. Good it went down.

But now ....another problem, none of the switches are working anymore !

T control is fine, motors are fine, but none of the switches.

Kind of annoying. Any help?

:-)

Share this post


Link to post
Share on other sites
But now ....another problem, none of the switches are working anymore !

T control is fine, motors are fine, but none of the switches.

Kind of annoying. Any help?

:-)

I've seen that happen with my print. My procedure to fix it is:

-Close down the printing software (RepG or PrintRun)

-Turn off the machine

-Disconnect the USB

-Turn on the machine

-Connect the USB

-Start the printing software

-Connect

Not sure what's causing it yet...

Share this post


Link to post
Share on other sites

Just to be sure that it is not the firmware, can you use the Marlin Build 3 that is included in the repG software? I am possibly thinking that the endstop switches are not correct in your firmware.

Just closing & restarting repG only wont help, you need to physically disconnect the Ultimaker to make sure its reset (its what I call a hard reset, only need to do this when the Arduino goes into panic mode).

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

Announcements

  • Our picks

    • Architect Design Contest | People
      The goal of this contest is to design a set of people figurines that could be used in such a project to make an area, office or mall seem populated. 
      Think of different types of people in different environments, like walking people, people standing still, working people, and both men and women.
       
      • 6 replies
    • Taking Advantage of DfAM
      This is a statement that’s often made about AM/3DP. I'll focus on the way DfAM can take advantage of some of the unique capabilities that AM and 3DP have to offer. I personally think that the use of AM/3DP for light-weighting is one of it’s most exciting possibilities and one that could play a key part in the sustainability of design and manufacturing in the future.
        • Like
      • 3 replies
×

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!