Labern

So I tried out the new snap-on bit and it was a massive improvement. With no oil I have just tiny amounts of under extrusion. Will try again with other settings before trying with oil.

Thanks a lot Robert Just what i wanted to try. Ill give it a go and let you know how it goes.

Just on the net that one of the local craft stores has them. I guess the $2 shop might have them to.

Yeah I have seen this. Good cheap idea. I have found the chamfer on the snap on bit is to big and allows for much bendage. A bit of Bowden tube in there might help reduce the friction if there is enough room for it to. I'll see if I can make room for a bit of pipe cleaner. Not sure where they sell them here though.

I'll try and jump on solid works at work and see if I can come up with something a little bit better for the snap-on piece. I have had it pop off both side of the bearing now. There must be a way to getting it printing a bit more reliable and having prints look more like ones on YouTube. I was thinking of having a auto oil wipe just after the knurled drive somehow. As long as it doesn't add any more restriction.

Thanks, I'll give that a go first.

Yeah it looks like I will just have to just keep trying different things. I was going to mod Roberts snap - on attachment as I've had the filament pop off the side of the bearing a few times.

Hey Has anyone found any decient settings for Filaflex on the UM2? Im using Roberts feeder and oiled the filament with sewing machine oil. I have tried the recomended settings and another I found on another topic. It will print fine but will still under extrude on a few layers every now and again and the finish is pretty rough. ( will Post pix later )

I use Solidworks at work but since I got my UM2 I started to use sketchup make at home. It was easy to pick up and I'm still able to draw what I need at home but if I need a more complex design I just wait till I have spare time at work. I just wish solidworks did a cheaper home version.

Cool thanks It worked So many things to check before you print. I guess over time you will know what to look for depending on the design.

Hi One of my prints just finished and I was watching it print the 2 last pieces. It was printing to tubes in PLA and one tube had stings coming off and the other was fine. I noticed it was only retracting from the tube on the Left to the right but when it would return from the tube on the right there was no retraction. would this be one of my settings or is it a fault Somewhere? I'm not sure how to post the gcode or settings here. If you need them I can find out.

At work we Teflon coat alloy to use as seal heads to seal plastics. The Teflon prevents the plastic sticking to the seal head and We have Teflon coated steel and bronze etc as well. It's an industrial coating but similar to the coating on frying pans. The Teflon is sprayed on then baked but it can withstand temps up to 600 degrees. You could coat ceramic or another suitable material to lower the resistance.

Thanks a lot Robert THIS is really great stuff and I'm sure I will learn a lot from it. Great for newbies like me

Yeah I had a look and its not to hard to start a wiki but it would be good to have it on the ultimaker wiki. I will email them to see what they think.

Hi gr5 Thanks for the great info. you do really provide some really great stuff on this forum. I had started some trials of my own and your info will save me some time. I will also look forward to seeing Robert's guide. It would be good to start something on wiki but I don't know anything at this stage so it would be very empty.

Hi, I'm new to 3D printing and just received my New Ultimaker 2 a few days ago. After a few trials and printing various items with varied results. I had been reading heaps of posts here on the forum. I have found some good information but I was wondering if anyone knows of a good book to recommend or any documented format that explains how different settings can effect different prints? Something that has a basic explanation of material properties, causes of common problems and how to solve them. Also after looking at the settings in Cura things like wall thickness and speed variances between infill and outer layers. it Has a guide but would like to know a bit more of the background of why these cause differences to the finished results.