SoliForum - 3D Printing Community — Prints tend to curl up!

Re: Prints tend to curl up!

2015-06-21T14:28:09Z

Just as an FYI, the press is 24v but on the board itself, it either PWMs or regulates the voltage down to 12v for the fans.

Re: Prints tend to curl up!

2015-06-19T13:09:44Z

try slowing the print speed down if the curling is on an overhanging part of the print - too fast will pull the edge upwards.

Re: Prints tend to curl up!

2015-06-18T23:43:34Z

I have that almost in all of my ABS print outs.
No matter how you spray it or use a ABS- slure paste, it will always curl up or in the middle of the print object has some lift or gap.

Everybody will tell you that you need your bed 100-110 and filament should be in 200, they are correct !

But you also need to make sure your SD has an enclosure and not because your bed says it has reach 110 means it's good to print. You still need to wait a bit as the glass bed is the one that really need to reach the right temperature.

I did this method and since then, I never have that same problem.
And also, make sure your filament is not a cheap imitation, that helped me too.

Re: Prints tend to curl up!

2015-06-18T12:49:17Z

jagowilson wrote:

madfalcon81 wrote:
AZERATE wrote:
To my knowledge, nobody has designed/shared a nozzle fan for the Press, so you will have to design your own or maybe reach out to a veteran Press user if they have the time.

http://www.thingiverse.com/thing:852826
This guy did and I printed one, but I am waiting for my 12V 20 mm fans from aliexpress. FYI the are more expensive that 40 mm ones. Dunno why.
You dun goofed. The press is 24V. You'll need an additional power supply to use 12V fans.

Not so. My Press actually came with a 12V fan installed! It worked fine. I have since replaced it with a 24V as part of my E3D install, and that also works fine! Weird, but true!

Re: Prints tend to curl up!

2015-06-18T08:07:13Z

jagowilson wrote:

You dun goofed. The press is 24V. You'll need an additional power supply to use 12V fans.

Hmm, I think I attached a 12 V fan to some pins on the motherboard and it worked. I will tell you for sure tonight when I get home.

Re: Prints tend to curl up!

2015-06-18T02:20:41Z

madfalcon81 wrote:

AZERATE wrote:
To my knowledge, nobody has designed/shared a nozzle fan for the Press, so you will have to design your own or maybe reach out to a veteran Press user if they have the time.

http://www.thingiverse.com/thing:852826
This guy did and I printed one, but I am waiting for my 12V 20 mm fans from aliexpress. FYI the are more expensive that 40 mm ones. Dunno why.

You dun goofed. The press is 24V. You'll need an additional power supply to use 12V fans.

Re: Prints tend to curl up!

2015-06-18T01:26:07Z

AZERATE wrote:

I saw that one. However, since it has not been tested as stated on the Thing page, I was reluctant to recommend it. Far too many Thingiverse designs are only theoretical....
Let us know how it works out for you!

My rule for Thingiverse is if I dont see a picture of the actual printed item I don't even bother.

Re: Prints tend to curl up!

2015-06-18T00:12:07Z

I saw that one. However, since it has not been tested as stated on the Thing page, I was reluctant to recommend it. Far too many Thingiverse designs are only theoretical....
Let us know how it works out for you!

Re: Prints tend to curl up!

2015-06-17T09:01:18Z

AZERATE wrote:

To my knowledge, nobody has designed/shared a nozzle fan for the Press, so you will have to design your own or maybe reach out to a veteran Press user if they have the time.

http://www.thingiverse.com/thing:852826

This guy did and I printed one, but I am waiting for my 12V 20 mm fans from aliexpress. FYI the are more expensive that 40 mm ones. Dunno why.

Re: Prints tend to curl up!

2015-06-17T02:58:53Z

You can splice the fan wires into your existing wires for the extruder motor fan, or if electrical skills are as horrendous as mine, a separate PSU. I also chose to do the latter since I run lots of fans (Y motor, X motor, E3D, nozzle fan, 2 fans on the board, and one on the PSU). If printing PLA, you will need continuous blowing. Some ABS prints will require the same for good results...tall narrow parts where the nozzle sits over for too long.
You don't need an air mover for this. 30mm fans work just fine and they are cheap and abundant.
Some boards allow for Gcode controlled fans. The stock board on the Press is not one of those unfortunately.

To my knowledge, nobody has designed/shared a nozzle fan for the Press, so you will have to design your own or maybe reach out to a veteran Press user if they have the time.

Re: Prints tend to curl up!

2015-06-17T00:53:03Z

@Azerate - is the fan controlled by anything, or just blowing continuously (& gently?) on the most recently extruded part?

Re: Prints tend to curl up!

2015-06-07T14:33:14Z

I admit i'm a little bit lost, i heard that the delta in the temperature of two layer in abs was very important, anyway maybe i'm indeed too hot for print object of this size

Re: Prints tend to curl up!

2015-06-07T14:33:01Z

I admit i'm a little bit lost, i heard that the delta in the temperature of two layer in abs was very important, anyway maybe i'm indeed too hot for print object of this size

Re: Prints tend to curl up!

2015-06-06T23:05:25Z

Overextrusion may be a factor, but the given image is a little too blurry to be sure on our end.
I would recommend adding a fan for the nozzle and lowering your temps a bit. I'm currently printing ABS at 232-240, so 250 (assuming you didn't mistype) is quite high.

Actively cooling the extruded material is essential for PLA, but can also help with ABS parts. I've been running a fan with ABS for 4 months now and have no intentions on removing it

Re: Prints tend to curl up!

2015-06-06T16:05:36Z

Indeed this is not adhesion problem!
I print at 250 for the nozzle and 100 for the bad so i dont think it is the temperature, but i post it in another forum and it seem indeed that it could be overextrusion!

I keeo you updated!