LePaul

Agree...There's room on that print head platform for a a few ideas...ultrasonic, etc...

Ah, disable servos...that's a great tip I've been searching for some other fun things to try printing. The owl came out fantastic (scaled down to 2 inches tall) I wanted to try some of the statue ones I have seen posted on the Ultimaker site but haven't found the STL of them Thanks again for all of your assistance.

Actually you are in luck, the latest Blog post goes into this in some detail http://blog.ultimaker.com/2013/09/10/dual-extrusion-experience/

Yes. Actually I took the advice someone mentioned and adjusted while the nozzle was hot. I used the Ulticontroller to move the X and Y axis around each corner and adjust each bed screw a bit...I stuck with the 'paper fit thru' as a guide for this print...it came out pretty good. Feedback welcome...I think I'll stop messing with it and finally move on to some larger prints (the Eiffel Tower one I see on Thingiverse is calling me)

As you can see from my posts, I got as close as I could from loosening and tightening the limit switch up top (top z) and been trying to fine tune using the acrylic bed set screws. From there, I've used the guide of a piece of paper, when it no longer is able to slide under the nozzle, its too close Then as someone mentioned, bring the bed UP a tiny bit by doing a 1/8th turn on the bed screw, which should make up for the thickness of the paper. As I am learning, there may be a few other tweaks to make...temperature and speed, etc.

Comments now that you have a better angle

Here's the video of that test print....forgot about this! Left the first 3 mins at normal speed then cranked to 64x

How do you calibrate? I was looking for those metal feeler/gap measuring tools at the local hardware store but couldnt find one

No special effects were used, honest! Its hard to get a good photo inside of these with the iPhone! Especially lit the way I had it. Here's the file to test yourselves! http://www.thingiverse.com/thing:40410

I think he mentioned the widest available is 2.8 inches, which I just bought a few minutes ago at my local Lowes hardware store. I have the 2 inch wide stuff from Scotch and I went with the "its blue but not Scotch" painter's tape to try it out. I also bought an angled scraper for those hard to remove prints...and a C02 (computer cleaning 'can of air' stuff). Barnacules Nerdgasm actually mentioned this in his many Ultimaker videos...

I had a similar problem with the Front limit switch You had no luck with upgrading the Marlin software in the wizard? The only reason I ask is that when I did, then powered the machine off and tried again the next day...the sensors all worked doing the exact same things I had done before. Not sure what or why it behaved how it did, just glad it seemed to cure itself (Cure? Cura? Ha ha?)

I commend your ASCII, that's an excellent guideline! I did three test prints tonight. The first was the Ultimaker Robot and that came out really well. I then thought I would try a smaller scale version of the gothic chapel but it seemed like I was dragging stringers all over the place. I cleaned the surface...replaced with new (wider) painter's tape and printer this gear out, which has a tic-tac-toe pattern in the middle of it. I printing it using the Fine setting and .2 layer height. Overall it looks really good but, as you can see in the picture below, there's probably a little room for improvement. (Temp was 220c)

A lot of very diverse replies...very interesting!

Well that's what is odd. In the Cura software wizard, you are instructed to manually touch them. I touched the one in question and it never moved on to the next one. No hardware changes were made Just slide the limit switch over to make contact with the print head, to resolve the hammering when printing. When I tried it again the next day as GR5 suggested, it went right thru all of them, step by step Weird! But...happy its working!

Ah! See that's what I missed... Repeat that in all four corners, and then loosen all four screws another 1/8 turn, to compensate for the thickness of the paper. That should make a big difference! Thank you!

I'm still tweaking to get that first layer to look "smooshed" as you guys have kindly advised. On each edge, as I calibrate and adjust the four screws on the bed, I'm using a piece of paper to guide me. If I can't pull it back and forth, I loosen it slightly. But I'm not quite at that "smooshed" quality of first layer. I know this calibration can take time to nail down, I am curious what worked well for you? Again...I know I ask a lot of questions...but I appreciate your feedback. :geek:

Just to close out this thread with an answer, should others reference this... I'm not sure if updating the firmware, which was part of the Cura software setup wizard, was what fixed this. After powering the machine off and then making the appropriate changes to the limit switches in the front, its working (in another thread, but the print head was ramming and crashing around at the begining and end of a print) Strange, as the connections were all fine. But once I pushed the limit switch for a moment and let go, it would continue with the next sensor, then the back, then the Z. Then we moved on to the bed levling.

Aaron, we're going to have to agree to disagree. I asked questions, I'm sorry. Apparently my co-worker and I aren't as smart as the rest of you.

Umm, yes I know how they work. Use them in the robots. However for whatever reason, when the very same limit switch was pressed the other night, it wasn't progressing along. Who knows, maybe the flashing of the Marlin Firmware helped?

I had a bit of plastic on the tip so my bed leveling is a bit off (as noted when started a test print) Like you said, trial and error. The test print didnt have the CLANG CLANG CLANG effect...so indeed, progress

Hey that worked!

Hold I've double checked where they connect to the controller, that part is good. Will try hitting different switch as you suggest Hold down til i get a different prompt or a few seconds?

Look, I've been following the limited directions for Cura. Your shoe analogy makes no sense. I've worked with software and written software long enough to know that if the problem gives an error prompt, you do as it says and it stops there, chances are, there's a problem. Where in the Cura documentation do you see anything about randomly hitting the other sensors, hoping that will move it along? There isn't any. That's why I asked the question, posted to the support email and asked, with screen shot, on the forum. I don't want to argue with you. I just want to understand what the error is, what I should do about it and further troubleshoot it. Now on to the limit switches... I did find that when the Ultimaker goes to that far left position, the Limit Switch wasn't making contact at all. Same with the one front right (which showed the error in Cura). I did get an email from Support... Hi Paul, There could be a bug in the software, so you can just continue. Do you have the UltiController? Because then there's another way to test the end-stops. Kind regards, Marrit Hoffmans Now I need how to figure out how to Test that in the Ulticontroller

Print done, uploading to YouTube now....