jameshs

My error - I had not 'finished' uploading the photo. I think it is now here? I could be wrong James

Not sure if this is how to do pictures! I am trying to print two small 'holes' voids in the side of an object - it is to take a clip in the side wall of a small box. one side prints brilliantly - because the head stops and dos not cross - imagine a C where the good opening is on the opening of the C and the bad opening is opposite - because of the stringing it does try to leave this one out, but stringing and a slight amount of oozing means that this opening actually gets filled. Is there a trick I am missing ? Slicing in Cura The wall thickness is only 0.5 Nozzle 0.4 Stock Setup (have had machine 2 weeks While PLA 220 degrees Print Speed 75 Layer height 0.1 Retraction speed 60, distance 4.5 Speed 100 min layer time 8 seconds I played around with a lower temp setting - 210/215/220 and below 220 I had artifacts (curling) from not getting proper adhesion on the first layer - whereas I get good adhesion (painters tape) at 220 I lowered feed by increasing the diameter of the filament (it is 2.87 ave and I have put in 2.84 for normal extrusion - when I increased the diameter I did not have enough extrusion to actually achieve good layer adhesions and the thing fell apart. Am I trying something too hard - I was thinking that maybe I should do a dimple in stead of a hole as then I am just diverting the head? It can clearly achieve the bridging as it does one side perfectly - but not the other. I am just really trying to learn all the defaults on a simple box before I move to more complicated stuff - 40 boxes printed so far - drawn in Revit, into 123D Design, out to STL and into Cura! love the machine! Should I keep trying to go with the hole/bridging - or go with a dimple? James

Hi Both, I am slightly dubious about the printer replacing my ability to do small maquettes, because of their size, complication and overhangs etc, but i am only a week into the process! Having sorted calibration and run a few filament types through it (I don't want to run before I can walk) I am more confident in my ability to get a good result - and the first project that I am using it for is to print out an artist's proposals for a new granite bench ...... I am proposing a change to the design to make it accessible for disabled people (one of my specialisms) and he is maintaining it's artistic integrity (which I also respect). So I have modelled his bench in Revit - life-size, popped it into 123D Design and scaled it to 1:20 and then printed it. I will be doing the same with my proposed alterations - and discussing it with him next week! Having played with settings and split it in half (it is 160mm long, but overhangs mean that I printed it in 2 halves upright to avoid overhangs and support) and then joining together and perhaps a small amount of sanding ...... I will try laybrick now that I am more confident in my 'basic' printing knowledge. I am also looking at printing things for handing in a museum for people with partial vision - part of a research project. So many things to try and so little time! Will put up images as soon as I have them. James

Hello, Another new Ultimaker owner based in West London. I spent a year looking, researching, learning and comparing printers and chose the Ultimaker. I contacted a lot of printer manufacturer's and asked for samples (amazing how few would send any) and joined and read all the fora. Ultimaker was not my tops for looks (but really output is more important) and I thought originally I wanted PLA (so heat bed etc) but think that Nylon will probably do, and am up for installing a heat bed if I need to. But this forum and google groups convinced me to go for an ultimaker over other printers. have had the machine for a week - have spent time calibrating and working through the Cura options and am happy that I can now more or less get what I want out of the nozzle I am an architect and my current workflow is revit to 123D Design for an STL and then Cura for slicing! Anyway, just a quick hello! James