Daid

The lose pulley issue came from bad grub screws. Which have been changed and extra screws are now in the kit just to be sure. If you have pulleys that keep vibrating lose, contact support, they will send you new screws. Heated bed is needed for large ABS prints. But for large PLA prints: http://daid.eu/~daid/IMG_20121119_100449.jpg I managed quite big without heated bed.

You'll have to disable the "solid infill top" checkmark.

Dual extrusion is in the work, I hope it will be in the shop soon. (There are some design issues with this) Heated chamber is patented and we won't do it. The pulleys are fine, the grub screws have been changed solving most of those issues. (Some argue GT2 belts are better then the current MXL belts, but there is no physical change visible when you change to GT2. Yes, we've tested this)

I think this would be good information to put into a wiki page with some pictures. (I've also put down some things for a new Cura manual. And I think this could be in the super-advanced section of the manual)

The setup.py has been made for Linux and MacOS. It's not used for windows. I'm using PyCharm for Cura development, which has debug features buildin.

After clicking on the 3D window you can use the up/down keys to switch layers =)

You can disable the top in the expert settings.

Yes, every infill is aligned to the layer instead of the model, I might change this. I didn't like the KISSlicer "infill pattern depends on the model position" behavior, so that's why I went for this.

Ah, if you copied the game model. Then that's the best option, and I totally understand. (I've done the same with some other game, developers didn't mind but asked me not to share the model)

The new Cura beta does the line infill different, instead of only 1 diagonal line, it does 2 at 90 deg angles. So it does a full grid every layer. This gave better results then doubling the extrusion, which caused problems when moving back from infill to perimeter, as doubling the extrusion amount causes quite a bit of pressure buildup.

I'm 100% sure that the LED lits up when the heater is on. When the temperature is reached the LED cycles about 8 times per second, which is normal and nothing to worry about.

You can dial down the temperature even more, some people go all the way down to 190C to get as little strings as possible. Increasing the travel-speed also helps but might cause layers-shifts if your machine isn't running very smooth.

I cannot find much info about it on the reprap blog or wiki. I recommend logging your results on: http://reprap.org/wiki/PET

Be sure to test the 13.05.2 version, I noticed most of the stutter came from the GCode loading in the GUI and I changed some things there so prevent most of it. (Adding a slice button to prevent stutter isn't the best solution, removing the stutter is)

Depends on how much "slack" you can have and how well you have dialed in temperature and speed for bridging. My record is a 120mm bridge at 0.2mm layers. (Thinner layers make bridges a bit harder)

19.5V is no problem. You can even use 24V but then 1 part will overheat and need some work. But 19.5V is no problem without modifications it will work. Amp wise it's fine (Amps are a maximum, the printer uses as much as it needs, and the supply can supply up to the specified value) So you can use that supply without a problem.

Oh, but my comment doesn't come without background. I've seen a small stack of well thought-out but not working properly hotends. (Sadly, that's all the information I can share)

Yes, I consider it as stable as the previous version. But at the same time I'm a bit careful in releasing it as "main" version. It has quite a few new things under the hood that could cause issues.

It's a 32bit application, which means it runs out of memory after consuming 2GB of memory. (The amount of memory is not only related to the amount of polygons, but also to the internal volume of the model) Checkout the Cura BETA thread, it contains a link to the 13.05 testing versions, these are much more suited to slice large models. I've sliced things up to 3000 layers on 500k polygon models without issues.

If you drew the model yourself, then there is no copyright issue. There could be some trademark issues, but "3D printing" does not collide with "gaming", so that's also no issue in theory. However, in practice, you might not want to take the risk of a lawsuit. But not everyone is acting like GamesWorkshop. You could ask the developers of mechwarrior if you can share it. Note that there are a few other mechs on thingiverse already. Finally, instead of sharing it with everyone. I can also ask, would you be willing to share the files with just Ultimaker? We have a bunch of models that we are allowed to print and show, but not sell/share already.

If you use a different supply make sure that the + and - are the same as on the stock supply. Switching those around will fry the electronics quite nicely.

Not sure how iMakr works, as far as I know we do not have re-sellers. So they must be buying machines from us and selling them at premium. (Their prices are in pounds not euros)

For "checking the dimensions of the GCode", the older Cura releases used to have a "mixed" 3D view, where you could see the GCode inside the transparent 3D model. This showed that the path was properly put down inside the model where it should be. However, there are a few physical effects in play that are hard to account for. The first and most obvious one is shrinkage. This effects all prints in X/Y, and also effects cubes the same as cylinders. Next there is the dragging effect, PLA wants to stick to the nozzle a bit, and thus the nozzle drags it inwards to the circle. Finally there is an effect which I have no idea how it is called. But molten PLA wants to "blob together" this is a different effect from shrinkage as it effects small circles more then large circles. Some say "the software should account for this!", but that's currently out of my league. There are so many different effects, so much math, and event different colors of PLA that are acting differently. It's also not odd that you slightly have to adjust your model for the fabrication process. In injection-molding you also need to tweak the final mold till the parts are up to specifications. My personal design rules are: * Keep 0.2mm clearance between any moving parts or push-fit parts * 3mm holes need to be designed 3.5mm for a hole where a M3 screw can fall trough for moving parts. * 3mm holes need to be designed 3.2mm for fixing parts with M3 screws. * 3mm holes need to be designed 2.9mm if you want to tab threads in it and keep the part fixed (like my fanduct) * No overhangs larger then 60deg (where 0deg is straight up) * 90deg overhangs can be done for very small sections (0.5mm) without any visible problems. Or up to 1mm with light visible drooping * Bridges are king. With clever design you can print a chair upright without much issues. Check the resulting GCode if your bridges are detected properly.

That last one is telling me that you are missing OpenGL shaders support. Which is really odd. I think the install of Autodesk DWG messed something up in your video card drivers. I recommend installing the drivers from you video card supplier. (OpenGL shader support is really standard, even my 5 year old cheap vista laptop has it) Note, my laptop has DX11, and I think a lot more users have DX11. But if we can get closer to the cause then this would be great

I cannot confirm or deny the development of a dual-extrusion kit.