Dim3nsioneer

Depending on where you are located, you might try to call them...

Yep. There is (not yet) an agreement on that issue...

You may further elevate the priority and ask again. Maybe ask when you will get an answer; this usually works quite well with various companies. Just waiting is not the best way IMHO. To my personal experience, the clearer I state what I expect while being polite the faster I get what I want... so maybe you could also set them a deadline for the answer?

There is a whole thread about this issue, started by gr5: http://umforum.ultimaker.com/index.php?/topic/4094-raised-edges/

Marlin takes the volumetric information from the UltiGCode and divides it by the cross-section of the filament which is derived from the filament diameter. It then computes the necessary amount of steps for the extrusion length. So the diameter is just a scaling factor as the flow percentage.

Have you contacted support with the ticket system? There you can add another message and change the urgency of your request. Maybe you send them a reminder?

I guess you mean the heated bed option in the machine settings? It's there for quite a while... But it's a quite open secret that UM is working on a heated bed kit for the UM1. I expect them to present it at the Maker Faire Bay Area mid of May.

For the temperature this is certainly the way to go. For the speed: If Cura's usual speed up is not slow enough for you (would be a bit surprising), then yes.

I'm just doing my very first print with the new volumetric RepRap flavour on my UM1. I'm using a Marlin version with firmware retraction enabled (my UM1 now understands G10/G11 commands ). It works like a charm so far. I've put two M200 (one for each extruder) into my start.gcode to define the filament diameters. However I found some retract/priming features of my start.gcode/end.gcode have to be adjusted... The print feeling smells a tiny little bit like Ultimaker2... :lol: Nice job, Daid!

What about the Bowden tube? It would have to be longer too. Might that give some problems with e.g. retraction?

Here: http://wiki.ultimaker.com/Category:CuraPlugin

@cor3ys and @IRobertI: You both test the Ninjaflex with an UM2, don't you? Has anyone tested it with an UM1 (maybe gadgetfreak?)? Maybe I missed this information; sorry if it was written somewhere...

I don't think there's a bug. The effect is quite well known. If you have combing enabled, there is not retraction and the hotend is oozing during the travel which creates the lines on horizontal surfaces. If the the travel distance is large enough the loss of material can even lead to underextrusion afterwards as e.g. illuminarti has pointed out many times here in the forum. The recepy to avoid the effect is: - disable combing - low temperature decreases oozing - fast travel speed minimizes the material loss - the retract hop feature further minimizes the effect - keep your nozzle clean (also on the outside) I remember Daid having written in a post that everybody who is able to program a better combing algorithm than the existing one is highly welcome to contribute it to Cura. Finally, the RetractWhileCombing plugin allows to 'disable' combing and provoke retraction for certain print heights/layer numbers. The plugin also includes the hop feature ('lifting' the head).

About patents: The most important thing is already done. You have a proof that it works as it should. The usual way for an individual is to sit down with a patent agent of your choice and have a look at the invention. Then the agent does two things: writing up patent specifications (it's a very special language) and does some checks if your invention violates any existing patents. If everything is ok, the agent submits a so-called priority application. I think it's usually one year it takes for your national patent office to check if it can be granted. After that time, it goes internationally (you have to specify the countries you want it to be granted) and is being published. During another year (I'm not completely sure about the times) other patent owners can object against your patent if they think you violate their patents. If this doesn't happen (it usually does; then your patent agent has to write statements about it) or after everything is settled in your favour, the patent is granted in each country you applied for. From that point on, you have to pay a yearly amount to each of the countries. btw: Usually, applying makes sense in any developed country and the emerging market countries as e.g. Brasil. Forget about China and India. Patents are worth nothing there... So, your first step would be to find a patent agent. How? The national patent office may have a list of agents; pick one out... About manufacturing: For mass production, one usually makes a tool, e.g. for injection moulding. Such tools are very expensive (starting at 20'000 dollars up to millions). Before a tool can be made, the part(s) have to be redesigned in a way that it can be produced with this production method (e.g. one has to adjust angles for the very material it has to be made of). This is called design for manufacturing. Usually quite heavy simulations for e.g. mould flow have to be made. There are other manufacturing methods in between 3D printing and injection moulding such as tools made from silicone which can be used for up to 100 parts until you need a new tool. So, one step after the other. First talk to a patent agent. And very important: don't publish anything. If you e.g. would write about what it does here in the forum, you would loose the possibility for application. It must be previously unpublished.

I would try http://gcode.ws to determine on which layer the print stopped. With the Yoda model at this height, it might be possible to determine even the exact layer when you see then in the viewer and compare it with the print. The follow-up would be to delete the already printed layers in your UltiGCode file (in a copy of it, actually ) and add some 'G92 Ex.xxxx' command before 'first' layer. If the start procedure of the UM2 is likely to collide with the existing print, you may have to create a RepRap version of the gcode in order to safely control what the printer is doing.

@Dreamworker: Having a look at your gcode I only see a tweak at Layer no. 4 as specified in your settings. However, I think you suffered from the effect Didier Klein just described. A 50% flow or speed settings remains after a print. If you reset your printer (i.e. switch it off and on) it's gone. @Didier Klein: Interesting suggestion. UM1 users and UM2 users with RepRap flavour can include 'M220 S100' for the speed and 'M221 S100' for the flow in their end.gcode. These commands might be added to the end of the gcode file. An alternative, which would cause much more pain implementing, is to actually recalculate speeds and extrusion values in the gcode.

You might even improve the antennae quality by applying another TweakAtZ at the height the antennae begin and set the temperature down to 195°C or even 190°C while keeping the minimum speed at 10mm/s. Great idea with the celtic skull! The cars behind yours will keep some distance...

That's actually the very same as increasing flow above 100%...

Although you might be completely right about the easiness of the repair, I think UM is doing the right thing when sending replacement parts to UM2 customers who are in general not tinkerers.

you might try if disabling combing makes a difference. But probably it won't. Something else you can test is to increase the filament diameter setting. Best thing would be - if not done yet -to measure it at ten different spots and then take the smallest value. From that point on iteratively increase the diameter by 0.01mm and see how it works. Lowering the print temperature might also work.

For non-moderators there is only the option to share a link to the file location, e.g. on a dropbox account. With the print speed one has to take into account that the TweakAtZ plugin changes a scaling factor for the speed. This factor stays on machines with RepRap flavour the same until it is changed again or the printer is reset (as it would when changed on the machine itself).

The TweakAtZ plugin has to pass at least one layer without change to become active. So the earliest layer you can tweak is layer no. 1, i.e. the second layer (as layer numbering starts with 0). This makes sense as you should put the settings for the first layer into the standard inputs of Cura (UM1) or into the machine (UM2). Never use the TweakAtZ for level no. 0. IMHO the case that some changes are made at correct level and others are not is highly unlikely (gcode example please).

I think this effect is called 'reality'? ;-)

There is maybe one thing to consider: Some axial fans (I don't know about the fan used in the UM) don't like to be low-powered as their motor overheats quite fast if there's no cooling by the impeller.

Another thought, maybe a quite heretical one: does 100% infill really give the strongest parts? I think it depends on the kind of load you're applying to the part...