A few ways to reduce dead

A few ways to reduce the dead side dead the cause of the edges

The cold of the plastic will shrink in the process. The impact of shrinkage is unclear when the printed area is not very large. However, when printing larger works, the contraction of each surface area is accumulated, and the tensile force to the inner production becomes very strong, causing the edge to dead up. Lung Lung Design, "The dead of large object printing and the role of hot plate" in the article has more detailed dead analysis of the causes, we can study the reference.

Oral Red Gel

Paint thick, dry and then paint the next layer, more than five layers.
The air in Taiwan is moist and the red gel absorbs water and presents a soft state. Before you start printing, use a blower to blow the red glue dry. This will not only help to enhance adhesion, but also to avoid the removal of the product, the red glue is removed, causing the next time before printing to add a red gel. The quality of the print improves, and it reduces the amount of red glue in the whole.

Open skirt

If you use slic3r for slicing, you can open the function of the skirt (Brim). The brim extends outwards at the bottom of the model, extending a layer of thin slices. can increase the interface with the printing table, the grip will be increased, reducing the dead side of the situation. The width of the skirt is proposed to 5mm above, the effect will be more obvious.

Preview of the Open skirt

Open Board (Raft)

Raft is similar to the skirt principle, but will poker the bottom of the entire work. The extra expansion of the area can provide more gripping force to prevent dead. However, most raft are not easy to disassemble, so the pen is less likely to use this method. Cura can be plug to improve the raft disassembly problem, interested friends can participate in "How to set the Board (REFT) will be good demolition?" A paper.

The first line is wide and forgiving.

is also the function of SLIC3R. The more wide the line, the more material is crowded out of the hole from the crowded, and the more powerful the crowded of plastic and printing stations. This can increase the bonding of the work to the printing table and reduce the dead.

Don't blow the wind.

The wind will let the print speed up the cold. If the print is small, it will begin to print the next layer, it will cause the collapse of the development, need to blow the wind to accelerate the cold. However, when printing larger works, the cooling effect of blowing the wind will let the plastic contraction, producing inward tension, resulting in the edge dead. Fortunately, the large works, the one by one-layer printing time is longer, there is enough time for the plastic cold, do not open the fan-blown workpiece can still have a good print quality, but also reduce the shrinkage caused by the dead side. (The tens to blow the pipe is still to be opened, suggesting that the 12V should be directly connected to the source.) The fan that blows the workpiece is then connected with the ramps D9. )

Slic3r's cold setting, there are points for this problem. In the preset value, if the print time of one layer is higher than 60 seconds, the fan will be closed.

If the entire layer is printed at a time higher than 30 seconds, but less than 60 seconds, the fan will work proportionally, between 100% and 35% of the power. In addition, the fan will be closed.

Slow print speed

By experience, slowing down the print speed also helps reduce dead.

Use of hot bed

The theory of the hot bed can be high temperature, reduce the shrinkage caused by the dead side. But it is not a way to guarantee that there is absolutely no dead.

Use 3M 2090 Blue masking tape

This tape is also a force for printing according to the evidence.

PS. The pen person himself did not use the hot bed and blue tape, about the hot bed, glue information, is only a reference to the report.

1. For the hot bed blowing fan has improved, but the wind fan seat is not dead than the non-blowing more serious

Blue is easy to use but not big, I have hot board situation 70~80度 attached to the force is not wrong,
If the dead is not very heavy, it will be taken away by ABS when the power is large.
Blue tape is still more suitable for PLA

2. If you can't, you may want to go from the shape of your model. Digging a hole to reduce the distance of the contraction segment.

Here are some other ways to reduce the dead and I am also disturbed by the same ...

3. http://lunglungdesign.blogspot.com/2012/12/12-ways-to-fight-warping-and-curling.html

A few ways to reduce dead