[Anyone got any tips for printing when the first layer has lots of tiny part?]

@Jesper:

sounds interesting!

I will try out these settings, to see how well they work with Ultimaker PLA.

The link to your video seems to be dead. Can you fix that? I am eager to see it all!

 

Okay jeg made a new link. Hope it works.

 

[Raft Settings]

See my post here for my settings and a video. http://umforum.ultimaker.com/index.php?/topic/8506-anyone-got-any-tips-for-printing-when-the-first-layer-has-lots-of-tiny-part/?p=86450

 

[Anyone got any tips for printing when the first layer has lots of tiny part?]

I just found raft to be very usefull for a good first layer every time and even with a lot of small details in the first layer.

My raft settings peel of really easy for my PLA. Maybe not with other brands.

I use raft every time now. Okay i waste some pla on the raft, but all my prints works on the first layer.

My settings is like this.

Extra margin = 5.0

Line spacing = 2.0

Base thickness = 0.35

Base line width = 1.0

Interface thickness = 0.25

Interface line width = 0.4

Airgap = 0.215

First layer airgap = 0.0 (why both airgap and firstlayer airgap?)

Surface layers = 2

Surface layer thickness = 0.25

Surface layer line width = 0.7

My temp is 180 degree for raft and first layer and then use the plugin change at z to set temp to 200 at layer 1 so layer 0 is 180.

Then in advanced settings i set first layer to 0.25 heigth en 0.5 width.

In my start gcode in set fan on 100% for the raft

And fan settings to be on 100% from layer 0.

A small video to show it all https://fbcdn-video-b-a.akamaihd.net/hvideo-ak-xpf1/v/t43.1792-2/10810908_10152821049117954_317418998_n.mp4?rl=1500&vabr=960&oh=8fe024d0d7dcb9cb1ca2a10510cb999c&oe=54ABDAF3&__gda__=1420548519_f0867c389e4d5d96eb586d6de4560f08

And another video of a larger object.

Jesper

ps. this both works on heated glas and on kold bed with blue tape.

 

[I have made a Cura 14.12 package for Opensuse]

You can oneclick install it here http://software.opensuse.org/package/Cura

It's the one under the repo "home:Kenzu:3d-print"

Hope you enjoy it.

 

[How to install Cura on Raspberry Pi ?]

I think you need to compile it your self.

Look here for instructions

https://github.com/daid/Cura#debian-and-ubuntu-linux

One problem I see is that it's for i386 or amd64, a raspberry pi is ARMv6, so I think you need to edit package.sh and add ARMv6 support.

I the top add this to the list of build targets

#BUILD_TARGET=debian_armv6

And then after this add a new build target

#############################

# Debian 64bit .deb

#############################

if [ "$BUILD_TARGET" = "debian_amd64" ]; then

    export CXX="g++ -m64"

A LOT CODE REMOVED HERE FOR BETTER VIEW

#############################

# Rest

#############################

Add the new build target before ^^^ #REST

with this code:

#############################

# Debian armv6 .deb

#############################

if [ "$BUILD_TARGET" = "debian_armv6" ]; then

    export CXX="g++ -march=armv6 -mfpu=vfp -mfloat-abi=hard"

	if [ ! -d "Power" ]; then

		git clone https://github.com/GreatFruitOmsk/Power

	else

		cd Power

		git pull

		cd ..

	fi

	rm -rf CuraEngine

	git clone ${CURA_ENGINE_REPO}

    if [ $? != 0 ]; then echo "Failed to clone CuraEngine"; exit 1; fi

	make -C CuraEngine

    if [ $? != 0 ]; then echo "Failed to build CuraEngine"; exit 1; fi

	rm -rf scripts/linux/${BUILD_TARGET}/usr/share/cura

	mkdir -p scripts/linux/${BUILD_TARGET}/usr/share/cura

	cp -a Cura scripts/linux/${BUILD_TARGET}/usr/share/cura/

	cp -a resources scripts/linux/${BUILD_TARGET}/usr/share/cura/

	cp -a plugins scripts/linux/${BUILD_TARGET}/usr/share/cura/

	cp -a CuraEngine/CuraEngine scripts/linux/${BUILD_TARGET}/usr/share/cura/

	cp scripts/linux/cura.py scripts/linux/${BUILD_TARGET}/usr/share/cura/

	cp -a Power/power scripts/linux/${BUILD_TARGET}/usr/share/cura/

	echo $BUILD_NAME > scripts/linux/${BUILD_TARGET}/usr/share/cura/Cura/version

	sudo chown root:root scripts/linux/${BUILD_TARGET} -R

	sudo chmod 755 scripts/linux/${BUILD_TARGET}/usr -R

	sudo chmod 755 scripts/linux/${BUILD_TARGET}/DEBIAN -R

	cd scripts/linux

	dpkg-deb --build ${BUILD_TARGET} $(dirname ${TARGET_DIR})/cura_${BUILD_NAME}-${BUILD_TARGET}.deb

	sudo chown `id -un`:`id -gn` ${BUILD_TARGET} -R

	exit

fi

Now build the package and hope for the best with

sudo ./package.sh debian_armv6

sudo dpkg -i ./scripts/linux/cura*.deb

Jesper

 

[Cura tolerance/accuracy]

okay, this i kind of bad :-( Hope Daid will respond to this. But nice catch.

 

[Cura 14.01 Ubuntu packages]

Nice, but could you please enable builds for 12.04 precise to?

 

[Improving Surface Finish]

Actually that creates little vertical spikes. "non-printing" is harder than one would think.

 

I works fine i KISSlicer for me. I only use 0.075mm z-lift. And for me a small spike is better than a long drag-line.

 

[Improving Surface Finish]

If just cura did a small z-lift on non-printing moves. Like 0.1-0.2mm then it would make a nice finish.