Christian

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Christian
@Christian_Simon
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May 2016

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1 year 9 months ago - Posted a new Thread

2 years 2 weeks ago - Posted a new Thread

2 years 3 weeks ago - Commented on HowTo Calibrate, Tune and Fine Tune your printer and filament

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Hi, 

 

I will try to print the temperature tower tomorrow. I tried to print this today, and it turned out pretty well I think. 

 

 

2 years 3 weeks ago - Commented on HowTo Calibrate, Tune and Fine Tune your printer and filament

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Hi, 

Follow up question to Step 3: So if I measure 0.3 mm height when the layer height should be 0.2mm, does this indicate that my nozzle is 0.1 mm to high from the bed?

 

Step 4: (first picture, and print to the left on the second picture)
See pictures attached from the first 20mmx20mm cube test that had an average wall thickness of 0.5 mm at 1.0 extrusion multiplier. (first picture)

 

Step 4 - take 2: (second picture, and middle print)
Based on the first test I reduced the extrusion multiplier to 0.84 and did a new print. I printed this only 10 mm tall to see the difference between the two. 
Printed wall size was then measured to 0.40-0.43 mm and average of 0.42 mm

 

Step 4 - take 3: (second picture, print to the right)
Based on the second test I decided to use the new Beta version of Cura (2.1) rather than the Cura (15.04.5). I set the layer height to 0.06 mm, but kept the extortion multiplier at 0.84
Printed wall size was then measured to 0.35-0.42 or an average of 0.38 mm (so getting fairly close now to the 0.35 mm target)

Regarding the question on the filament. I bought the Velleman own PLA 1KG 1.75 mm filament. It was opened 2 weeks ago. Since then it has been stored on the printer in room temperature of about 23 degree C. Do not see any info on production date. 

2 years 3 weeks ago - Commented on HowTo Calibrate, Tune and Fine Tune your printer and filament

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Hi, 

 

I have a Velleman Vertex K8400 printer with a 0.35 mm standard nozzle. Printing with 1.75 mm PLA without a heated bed. 

 

Step 1: Estep/mm was calibrated from 200 to 140

Step 2: Measured the filament between 1.65 mm and 1.75 mm - On average about 1.73 mm
Step 3: Don't understand it. Am I to print only the first layer of a Cube, so rectangle of 20x20mm? what am I supposed to measure, and adjusting the bed - are you referring to the bed height? How should one use the measurements to adjust the bed or code z offset?

Step 4: Measured 9 times between 0.45 mm and 0.59 mm . avg. 0.50 mm = New multiplier 0.7

Step 4.5: Didn't understand this either
Step 5: Not yet tested
Step 6: Not yet tested

On step 4: The cube that I printed is under extruded at 1.0 extrusion multiplier... Step 4 recommend to use 0.7 - is this correct?

2 years 3 weeks ago - Commented on Thinking of getting a CNC, any favorites?

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When I have calibrated my new Vertex K8400 3D printer, and the new center parts update of the MPCNC is ready then I will start printing the parts I need  and other the electronics etc. 

 

Great fun anyhow to have a new project :)

2 years 3 weeks ago - Commented on K8400 - How to feed 30 mm i filament to test Esteps

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Hi the nozzle is 0.35 mm. That is why I'm also trying to calibrate it actually be able to print this size. Thanks for linking to the tutorial, seems good. I'll try to follow it.

2 years 3 weeks ago - Commented on Thinking of getting a CNC, any favorites?

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I just donated some money to this guy, really great that someone put this much effort into a open source / hardware project like this. Haven't built one myself yet, but contemplating it. Just need to calibrate my Vertex K8400 3D printer first. Don't want to spend 120 hours printing parts to realized they are not fit for purpose....

 

 

2 years 3 weeks ago - Commented on K8400 - How to feed 30 mm i filament to test Esteps

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Hi, 

I did the testing and came to 149 being the golden number for my estep/mm. Based on this I've now been trying to print 0.35 mm walls with both Cura and Slic3r. I've read a few tutorials and printed more than 30 examples, however Im not able to print 0.35 mm walls without sever under-extrution.

I've tried to adjust (current setting):
- Filament diameter to 1.72mm (which is the average I get when I measure about 10 times)

- Nozzle width is set to 0.35 mm (not tried to change this)

- Extrusion multiplier - tried between 0.7 and 1.1 - Anything below 0.95 give under extrution with the current "extortion width" settings

- Extrution width - tried between 0.25 - 0.5, seems like below 0.35 only result in under-extrution. 
- Temperature - tried 200-220, seems like 220 is the best option so far. 

Setting where I get 0.35 mm wall, but under extrution (two walls at 0.35mm and the other to around 0.4mm)
- Filament diameter 1.73 mm
- Filament multiplier 0.80
- Extrution width 0.30 mm

 

Settings where I get 0.4 mm wall, and a slight under extrution

- Filament diameter 1.75 mm
- Filament multiplier 1
- Extrution width 0.35 mm

 

2 years 3 weeks ago - Posted a new Thread

Hi,    Do anyone know if there are good alternatives to the standard Vellemann K8400 Nozzle that can be bought on Ebay. I was thinking that I should buy a few different sizes, eg. 0.2 -> 0.6 mm to test and have as spares. 

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