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What am I doing wrong.

Posted by Bee69 
What am I doing wrong.
March 26, 2017 07:38AM
Hi Guys.
Im new to all this 3D stuff.
What am I doing wrong I printed this yesterday and it's not good.

photo Print1_zpsargjrfud.jpg

photo Print3_zpsnw00i5w2.jpg

photo Print2_zpspalg9zs9.jpg

Edited 6 time(s). Last edit at 03/26/2017 07:48AM by Bee69.
Re: What am I doing wrong.
March 27, 2017 03:32PM
Sorry for being a pain in the arse but can someone tel me what im doing wrong.
Thank you
Re: What am I doing wrong.
March 27, 2017 08:46PM
probably a combination of things, First the stringing is from not quite enough retraction, but the stringing is really a minor issue. It appears you are over extruding. Meaning you are pushing too much plastic. Have you calibrated your extruder? You really need to do that. Also the tops of the object appear to come up in the corners, I would bet you need to reduce temp just a bit and you should add a print cooling fan. That would be a fan that cools the print, that should help to solve the lifting corners.

Here is a link for the gold standard extruder calibration procedure
Triffid Hunter Calibration guide
Re: What am I doing wrong.
March 27, 2017 08:51PM
Several things, but to list a few:

Over extrusion.
Probably too hot.
Retraction settings too small.
Wobbly Z axis.

Now can you give me some more info like:

Printer style, model, it came assembled or you put it together? Type of filament, temperatures of both hotend and bed, slicer settings including layer height, nozzle size, speed. But most importantly, did you calibrate your printer on all axis including extruder?

There is no magical solutions for your print, it's just setting your printer right and then pretty much trial and error which settings works best for the printer and the filament used.
Re: What am I doing wrong.
March 28, 2017 12:14AM
Looks like ABS as it's curling off the heat bed.

I would go through a calibration again, then get comfortable printing with PLA before trying ABS.
When printing with PLA use a cooling fan for the piece. I don't use a cooling fan for ABS.
Re: What am I doing wrong.
March 28, 2017 04:59AM
Thanks for the reply.
Sorry I didn't state it the printer is a CTC Prusa i3 copy off ebay.
It's a DIY printer that comes in 5 parts.
The filament is PLA.
The nozle is .04 Diameter temp was 189 and the bed temp was 60.
As I've said I'm new to all this.
I have no clue about calibration of the extruder and the pulley diameter and the rest of the stuff the calculator need's to know.
Thank you all

Edited 2 time(s). Last edit at 03/28/2017 09:07AM by Bee69.
Re: What am I doing wrong.
March 28, 2017 11:24AM
Something doesn't look right with the temperature, it looks hotter than 189. But need some little more info in order to give you more advice.

What's your layer height, printing speed and retraction distance.
Re: What am I doing wrong.
March 28, 2017 01:04PM
How do I find the layer height, printing speed and retraction distance.
Sorry but Im a complete newby at this.
Re: What am I doing wrong.
March 28, 2017 05:24PM
Layer hight is how much the nozzle moves up per printed layer. If you get what I mean?
0.4mm nozzle. Normalt you print with 0.2mm layerhight.
Think about a big stack of pancakes! Mm very single pankacke is a layer of pancake! (Now I got hungry!
Printer speed is the speed the nozzle travels in x and y axis. Z i movement in hight.. ex z moves nozzle up 0.2mm per layer.

Retraction is what its sounds like.
When the filament is fred tru the nozzle during print. It is some pressure in the nozzle. When the nozzle moves to another place to print. (While printing a layer)
it has to stop. Bit the overpressure in the nozzle will push out some extra filament. For example PLA.
To stop the happening. The feeder motor retrackts some filament. In other words. Backsit out from the nozzle. Since it is soft. Its more like creating a sshort period of suction.
Try to hold the filament between the fingers, during a print. Shou should feel the filament go backwards once in a while.

Overextrution is if the nozzle feeds out to much filament during printing. You get to much of the good stuff!
Underextrution is the opposite!
That can be calibrated. The stepper motor that feeds the filament needs calibration. Its usally named E-motor. (Extruder)
You might be able to adjust E-motor in the printers menu?
Re: What am I doing wrong.
March 28, 2017 05:31PM
Layerhight, speed and retraction distance is found in the slicer program.
What slicer are you using?

Im fairly new to this too.
Ive learned alot on this forum so far. Just glad to be able to help some one!

There is alot of info Regarding printers and settings on youtube!
Search youre printer ther. Im sure you will find alot of info.
Re: What am I doing wrong.
March 29, 2017 12:37AM
Thanks for the info its a big help.I use Sketchup to draw and Cura to slice.
Re: What am I doing wrong.
March 29, 2017 01:05PM
Hi guys this was half way through a print that I stopped.
Accel - 1400
VXY Jerk - 13
VZ - 000.3
VE - 5
Vmax - X - 400
Vmax - Y - 400
Vmax - Z - 2
Vmax - E - 40
Vmin - 0
Vtrav mm - 0
Amax - X - 1400
Amax - Y - 1400
Amax - Z - 100
Amax - E - 8000
A retract - 5000
Xstep - +078.74
Ystep - +078.74
Zstep - +2560.0
Estep - +0105.0
Re: What am I doing wrong.
March 29, 2017 05:23PM
What Cura version are you using? Have you found the settings in Cura?

I can see that the print in the picture has warped upwards.
Do you have painters masking tape on the bed. Or what is the print sticking to on the bed?
Does you're fan work, thats cools the print around the nozzle?
For PLA, its best to habit to full. or almost full effect.

Thing is. if it warps. The nozzle will drag the tip in the print.

If you find the settings in Cura. I will help you adjust them to what I think is basic settings for this kind of printer.
But printers are individuals. so it might need more fine tweaking.
Re: What am I doing wrong.
March 30, 2017 02:26AM
Hi SatorCodex.
I'm using Cura 2.4.0 Beta2 yes the settings are under the settings heading. lol
Yes im using masking tape. It came with blue masking tape on it.
Thank you
Re: What am I doing wrong.
March 31, 2017 04:26PM

I will pull out my Cura settings tomorrow.
Bit tired on Friday night. smiling smiley
Re: What am I doing wrong.
March 31, 2017 04:26PM
Thank you
Re: What am I doing wrong.
March 31, 2017 11:07PM

Click 'configuration' in the first picture.

Then find your settings at the bottom of the screen that pops up, under the heading 'Selected Quality Setting'.

And since you seem to have a camera, how 'bout snapping a few picks of your badboy and setup? You never know what people may see.

Edited 1 time(s). Last edit at 03/31/2017 11:10PM by VonRansak.
Re: What am I doing wrong.
April 01, 2017 02:14AM
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