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Coalwater

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Posts posted by Coalwater

    Rough nylon prints

    in Improve your 3D prints

    Posted

    Good job Travis7i!

     

    I also had some success:

    image.png.8defc01940d710e7e1359fb6d0ff68fc.pngIMG_8464.thumb.JPG.c3e8d4fd59fc3809f15b1cd8efe261fa.JPG

     

    It's not perfect, and it's useless because the layers aren't in the right orientation but I got a complete nylon print!

     

    I used the 0.25mm nozzle, set the build plate temperature to 100C, printed a dummy cylinder around the part to wipe the nozzle and cancelled z-hop to avoid stringing.

     

    Thanks for all of your inputs.

     

     

    Rough nylon prints

    in Improve your 3D prints

    Posted · Edited by Coalwater

    14 minutes ago, yellowshark said:

    Do you have your minimum layer time set to say 10 seconds? I know I said above possibly not to use fan with nylon but your stuff is so small maybe you have no choice.

     

    I tried. The print head moved away from the part and the nylon strings between the nozzle and the part. It makes quite a mess... I also tried reducing the print speed a lot. It didn't help.

    Rough nylon prints

    in Improve your 3D prints

    Posted · Edited by Coalwater

    All good points, thanks!

     

    If I can solve the oozing problem, I think I'll get what I need. The best success I've had so far is with an ooze shield but since it's only available in dual extrusion I had to print 2 parts, like you suggested, but the only material I have on hand is PLA and it don't mix with nylon so the ooze shield eventually collapses.

     

    50 minutes ago, Travis7s said:

    I will say I am using the supplied glue stick with my nylon and it works great. Without it I would get warping and sometimes the print would break loose. My glass has always been set at 60C.

     

    I've been using 3D lac instead oF the glue stick and nylon sticks well most of the time at 60C. It depends on the shape of the part. I'm trying it at 80C now.

    Rough nylon prints

    in Improve your 3D prints

    Posted · Edited by Coalwater

    9 hours ago, kmanstudios said:

    This will usually happen when the print does not stick properly and gets wound around the nozzle. Also, Nylon is very moisture sensitive. Not PVA sensitive, but you should always keep an eye out for cracks, pops and sizzles.

     

    Yes, I read about that. I've been keeping the reel in a resealable bag with a desiccant pouch in it but I'm building a dry box now... Is the oozing because of moisture also? I was able to get something decent with an ooze shield, but I had to print 2 parts with 2 different materials for it to work.

     

    Rough nylon prints

    in Improve your 3D prints

    Posted

    I'm also having issues with nylon. It gets all smudgy and I can't seem to print a clean part, especially small ones like 2mm diameter pins. I also have the Printed Solid enclosure. At first I thought the enclosure made the ambient air too hot but I'm, not sure yet. To me it looks like I can't get the nylon to cool fast enough between layers. how big is your part? You should be able to do something by playing around with print speed, minimum layer time, etc...

     

    Here's how my latest test turned out...

    image.png.0741cf198f60c20589c64a6a4b4163c1.png

    image.png.9132bf486fe9f14a9bd342701ade18c9.png

     

    Ultimaker 4, The next generation of 3d printer

    in Coffee corner

    Posted

    On 01/04/2018 at 10:47 PM, kmanstudios said:

    Oh...ok...I too like the twinklies, but not in my interfaces..... :)

    He could mean 3 feeders, one red, one green and one blue, all mixing in the nozzle to make every color possible. But beyond the mess and the technological limits, I think everything would just come out brown... :'D

    • Like 1

    New to 3D printing

    in Coffee corner

    Posted

    Hi,

     

    This year my employer finally agreed that we needed a 3D printer and so having never used one, the Ultimaker 3 seemed to me like a good choice. Being in a corporate environment, I didn't have time to fiddle around for a few months before I was able to get a working part out of it. I'm happy to report I was printing my first part about 1 hour after getting it connected to the company network. It has been running every day for about 6 weeks now, mostly making specialized tools and small parts and my failure rate is super low. I did learn a few things about settings though.

     

    Of course, I am a mechanical designer with a lot of experience with 3D modelling (lots of playing around with software settings) and some familiarity with G-code and CNC machining. I have tons of things I'd like to see added to Cura and there is definitely some improvements that could be added to the machine itself but so far there is nothing I needed that I wasn't able to print!

     

    I'm looking forward to learning more and to see what will be possible in the future!

     

    Thanks!

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