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Printing issues ...
Everyone is welcome-
We can find a location with tables and power outlets to show and tell and RAP about REPlicators.
revwarguy, where do you CNC guys meet?
We probably need a place indoors with tables and outlets that we can use.
Maybe a library or something?
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rrr7
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Missouri, Saint Louis RepRap User Group
revwarguy,
Welcome to the REPRAP community.
I don't know kbellenterprises.
There is some sparse interest in meeting locally. I had intended to just set something up and see who comes.
by
rrr7
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Missouri, Saint Louis RepRap User Group
Sure duncansryan,
The whole REPRAP community is available, just post your question under the topic it deals with for the most answers.
Go ahead and start your own thread under St. Louis group if you wish. We have not gotten together in this region yet, we have been kind-of kicking the idea around.
by
rrr7
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Missouri, Saint Louis RepRap User Group
every 3D printer purchased, kit or from scratch printer requires calibration by somwone before use. see reprap links to calibration procedures.
by
rrr7
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Printing
I don't think that I ever ended up posting my prusa printer mod... here it is:
more info in my blog if you are interested.
my blog
by
rrr7
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General Mendel Topics
calebkraft,
I assume you have done an initial calibration procedure?
The stepping or skipping has many possible causes see PTPG .
by
rrr7
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Printing
TroyDog, there are two different types of contamination that is discussed when we talk of bubbles.
One type of bubble is also called a blow-out and occurs in the printed part. Blowouts are due to filament absorption of moisture and the resulting steam during the extrusion produces the small part surface void and a pop sound.
A different type of contamination is actual air bubbles or larg
by
rrr7
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Printing
I think there is a skeinforge setting for bridge infill in direction of bridge.
by
rrr7
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Printing
Blobs on one corner is usually due to the Z-axis move with the nozzle over the part at that location. The extra plastic due to ooze while the z moves is enough to give a little blob and usually the z moves with the print head at the same point on each layer. Skeinforge has some oozebane settings if you want to try enabling that.
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rrr7
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Printing
Just a suggestion if you have not looked here yet- check out some common causes of that issue on that at PTPG
.
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rrr7
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Printing
It may help to see the PTPG
with a list of the usual suspects.
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rrr7
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Printing
Thanks mycarlooksfast, good problem I.D..
I borrowed your image for the PTPG
.
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rrr7
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Printing
This part is made to push your printer to its limits so you can find and tweak issues to work at their optimum. So it is not surprising to have difficulties with it. On these bridges I think the only way that the infill would be supported is if it is joined to the perimeter all along the way. You could try increasing the value of the skeinforge setting Fill, Infill Perimeter Overlap to help jo
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rrr7
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Printing
ronlybonly,
Welcome to the St. Louis Area group.
As the entire reprap project is- it is all your choice. -I know, not much help.
The whole reprap community is very helpful so just read and ask questions. If you post questions by category in the forums, more people can see them and respond.
The print head is one of the most tricky bits as there are so many choices and it is probably the most cr
by
rrr7
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Missouri, Saint Louis RepRap User Group
ranjiet,
I built a Mendel Prusa v1 derivative with an inverted z-axis. Here is my blog .
There are plenty of models that have already been developed to choose from and a couple have large build volumes if you want to save yourself some headaches and time.
If you want to modify a design to your liking- have a blast!
There are also projects that the REPRAP group have on a to-do list if you are fe
by
rrr7
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Missouri, Saint Louis RepRap User Group
There are still REPRAPers here.
For new activity, start a new thread and Private Message anyone you want to invite- that should work.
ranjiet, you can ask any questions you like, I get email notifications on PMs and active threads that I have responded to before and would be glad to help as would everyone in the forum.
by
rrr7
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Missouri, Saint Louis RepRap User Group
Sounds like a calibration issue. Have you tried printing the 20mm calibration block with 100% infill? It looks like the amount of filament extruded is not filling in completely due to your settings. See the PTPG-material feed excessive and the related links for background and suggestions, your issue is the opposite of the condition shown in the guide here but the info may help.
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rrr7
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Printing
It looks to me like maybe a polygon model or slicer issue? First, how smooth is the original solid model (stl)? The reason I say that is that going around the frog I see large polygon faces in other directions. The printer can only print as smooth as the model is defined. Are the faces/steps in the Z direction in the model? The perimeters in X and Y control the outlines of each layer which i
by
rrr7
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Printing
Start a new thread by clicking on "New Topic" under the "Printing" forum so everyone will see your question. This thread is specifically for the PTPG topic.
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rrr7
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Printing
Mine setup in case you were wondering is:
Libuntu (Linux) on a laptop
RAMPS 1.4
Repetier Host v.72
Repetier-firmware v.71
Skeinforge v 50
by
rrr7
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Printing
I am not a g-code expert either but the way I read it:
M107 is for fan off setting but it was "depreciated" i.e. changed to M106 in later versions purportedly.
M104 S0 is zeroing the temperature of extruder.
M105 was getting extruder temp.
translated using reprap-G_code
Apparently something is triggering the last operational line to execute before the prior moves were finished. Maybe you
by
rrr7
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Printing
yes, for the stepper drivers their potentiometer setting sets the current level to the stepper all the time. As stepper motors have a holding torque even while they are not moving. I run with a fan on my stepper drivers even in my basement in winter.
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rrr7
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Printing
Yes, nophead has commented on the heat retained by the x-axis and the long term damage it did to his mendel in his blog, so something like that could cause you issues. I just read through that last night, it is in July 2010. HydraRaptor
(sass-squash through the woods.... funny! )
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rrr7
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Printing
So you still had a x-home command in there but it worked fine?
It would be interesting to see the last layer of G-code commands before and after to compare where the homing command was at in the failed prints. (The last layer would start from the last z-move)
It could be due to how the slicer program is processing the code when you request to home at the end.
After that, I do not know how slic3
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rrr7
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Printing
Did you see the final entries under At wit's end. Terrible print quailty ?
His PCB was deflecting as the heater cycled and he thinks that adding a glass plate on top of the PCB may have fixed it.
That is if your affixing extruder did not solve the whole issue.
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rrr7
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Printing
I run repetier too and never saw that one before.
It looks like the ending home instruction is overriding the buffer full of commands.
Which slicer are you using?
Maybe try printing with the home instruction at the end turned off first? and see where it stops.
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rrr7
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Printing
So is it fixed?
Frequently with lower layers doing well then going bad as it gets taller indicates heat buildup in the part. See part temperature in PTPG
In addition to the glass as a print surface, what other changes were made to resolve the issue? (pics please)
The resolution documentation will help others if it can be identified.
by
rrr7
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Printing