pikey

Thanks for the suggestions Mr. Waldorf. I guess I'm worried about the cable putting angular stress on the printer bed. Although it seems like that isn't much of an issue. I might still remove the entire chain because it worked properly before I started messing around with it. Edit: I'm please to report that after a few torture tests, my prints seem to be unaffected (knock on wood) and the chain stays.

One link removed:

I love the design and look Robert, it was such a huge hassle to properly mount, I'm not looking forward to removing it. Its a shame. :( Edit: I took one more link off (down to seven not including tips) and it seems like that took some stress off the cable. Its currently printing (I took it off while printing the mm3/s test) so I can't tell if there is less stress on the cable in the resting (bed down) position. I think this should enable me to keep the cable chain. I hope...

I printed out |Robert|'s cable chain. Per "instructions" I printed 12 segments not including the end pieces. My final assembly I had to remove four segments in order to get it to properly fit, and the bottom segment doesn't have enough slack to be secured (double sided tape) to the bottom of the Ultimaker2 So far it doesn't seem to be interfering with the prints, but I wanted to make sure that I'm not doing long term damage (I don't even know how this would do that). The cable doesn't seem to be interfering with any critical operations, but I'm worried mostly about putting stress on the connectors to the bed and board. Is this a concern? They don't seem too tight... YouTube video of how rigid the cable is at full bed extension. http://youtu.be/AGwQuCAaEgY

I find that the setting for "Print all at once" vs "Print one at a time" is wishy washy on my computer. Sometimes it prints them all at once, sometimes one at a time. The only way I know is if I check the layer view. Changing the setting to all or one doesn't change anything.

Have you ruled out that the under extrusions are coming from friction in the line causing the feeder to slip? Could be from the spool to the feeder, or from the feeder to the nozzle. Is the spool to tight?

Would be nice to have a mildly heated tube between the spool and feeder... probably not impossible to put together. But what new problems would it introduce? You'd have to make sure the filament was cool enough not to to get squashed by the feeder.

I was dreading doing this test, here are my results from two tests. I got the Ultimaker in the mail late last week. I replaced the stock filament guide with one designed by Geeks. I disassembled my feeder mechanism, re-mounted the feeder stepper (in its stock location) and reassembled the feeder without making any changes. I played with the feeder tension a little afterwards and left it a bit looser than when it arrived. Print 1: Ultimaker Blue PLA @ 210c Bed @ 75c Flow 100% Print 2: Before I started print two, I unwound my filament from the spool. Then I rewound it to make sure I got rid of any tangles. I was getting towards the last 1/4 of the spool so the filament was wound really tight. Ultimaker Blue PLA @ 230c Bed @75c Flow 100% As you can see, lighting makes a difference in spotting defects in the prints. The reason I did the second calibration print is because my print immediately prior to it at .25mm layer height and 100mm/s speed had constant under extrusion at 210c. Should I print this material at 230c going forward?

I'd rather you invested your time into the feeder than a silly video for us =P

Haha, I'm using your V1 pulley. It took two tries, but I got a decent print the second time, I may try a third. I prefer the V1 design because there is less chance of the filament going "off track".

I love the idea of using bearings in place of (or inside of) printed parts. I'm looking at possibly adding a bearing to the filament guide you designed to keep the small printed spool spinning freely. The less friction the better!

This has been driving me crazy! Luckily I print everything with brim, so if I forget, I'll lose one row of brim at the most. When do you plan on publishing your V2 feeder design? I have all the parts for you V1 printed and ready (waiting for my threaded linear rod to show up). I'd rather just jump right into V2 if its working better for you. Ian, you're doing a fantastic job and inspiring a lot of people! I can't thank you enough.

Since Robert is too modest to advertise his own designs, I'd suggest checking out the https://www.youmagine.com/designs/low-friction-um2-spoolholder I also installed a https://www.youmagine.com/designs/filament-guide. If tension on the filament or friction from the spool was causing your issues, then these two items should help. I'm still printing the spool holder (and need to wait for my bearing to show up from eBay) but already have the filament guide installed. I noticed an improvement after installing the filament guide, but I also slowed down my general printing speed just to be safe.

Great! I stocked up on M3 screws. I should probably get another bearing... Could you direct me in the right direction to order an identical bearing to the stock extruder?

Geeks, I just printed your feeder on YouMagine. I think I'm going to hold off installing it until the release of your next version (or Ian's feeder is available for download). The progress being made is amazing, have you noticed a big improvement with your filament guide? I'm printing the pulley right now.

I'll be coming down from MA, I'm excited to meet you there. I've heard a lot of good things about the filament you carry.

I just got the okay from the wife (cutting it close to valentines day). I'll be going on Saturday February 15th, I think it would be great if we could have a small Ultimaker meetup.

Will Ultimaker be selling the Ultimaker 2 at the expo?

Ah, I missed that. Thank you for supporting the community through this difficult time.

Is it safe to assume that some of the stolen 30 units were allocated to resupply Maker Shed stock for US customers? Ultimaker recently tweeted that Maker Shed should be getting more stock soon, I'm hoping that the shipment was en route before this incident. Good luck Ultimaker team.

I haven't thought about that, I've been thinking of making some sort of cardboard construct to keep the cats away, but figured the heat retaining enclosure would be a big help in the cold New England winters. Looks like I'll have to shop around, thanks!

I want to back the kickstarter for http://goo.gl/8bNNvg to keep my cats away from the Ultimaker 2 I recently ordered, but it will still let me see and access the printer easily. The cabinet outer dimensions are 24” Wide x 22” High x 22” Deep. My question is: is the Ultimaker too tall to fit in the Maker Kase without interfering with the bowden tube?

I'll let you know when I get mine, my order is a U2 without any extra adds. I wanted to order extra filament but decided that it might bump me into extra customs charges territory, its a shame it has to work this way.

Is there a recommended torque for those of tinkering with UM2at home?

Greetings from Berkshire County, Mass gr5! Trying to make the best of the wait by becoming well versed with the basic troubleshooting steps for the things you mentioned.