Jump to content

Glassbed


super-grover

Recommended Posts

I was printing some large pieces using ABS and when the piece was finished a few shards of glass peeled off with the finished piece. Now i have a chipped print bed...

Can i just go to any hardware store that has 4mm tempered glass and have them cut the right dimensions?

How can i prevent this from happening in the future???

Thanks!

 

  • Link to post
    Share on other sites

    Can i just go to any hardware store that has 4mm tempered glass and have them cut the right dimensions?

     

    Yes! But go to a glass store, not a hardware store. NYC has lots of windows. Also I don't think it really needs to be tempered although UM glass is tempered. Make sure you have them grind the edges so it isn't sharp. I'm guessing $10.

    I have no idea how to prevent this from happening in the future. It happens to a few people occasionaly - especially with XT filament (which I think might be PET?) but I haven't heard about it with ABS yet. What did you put on the glass? ABS glue? Hairspray? Some hairsprays stick a bit less than others.

    One thing that might help is to print at 110C and let the glass cool completely before prying off the part.

     

  • Link to post
    Share on other sites

    Did you use a raft, Woofy?

    I don't recommend painter's tape. That's for when you dont' have any heat. It's easy to get the part to stick to the tape but getting the tape to stick to the glass is more difficult.

    I've been fine printing ABS on glass with hairspray.

    Which glue did you use? The glue stick? Or acetone with ABS dissolved in it? Or wood glue mixed with water?

     

  • Link to post
    Share on other sites

    gr5,

    It's not painter's tape, its Kapton tape. It was Super Grover that mentioned painter's tape. I dip a rag into Acetone and wipe it on an old failed ABS fragment to bring a little ABS onto the rag. The Kapton surface is wiped with that and it puts a fine ABS film onto the Kapton (but make sure you do it cold). It sticks like s**t to a blanket when hot and releases reasonably well when cold. The bed is heated to 110c before printing.

    I know that direct to glass printing is possible but there have been a few people on the forum mention the glass surface chipping, so I felt the Kapton would also spread and stress forces on the glass and protect it.

    I didn't use a raft. That's brim and support your're looking at in the pic.

     

  • Link to post
    Share on other sites

    I had a piece of glass come of my heated bed too.

    You can flip it over the other side if it's not broken. Mine had only a tiny part detached. I've been printing like this for several months now.

    What happened for me was too much glue and not waiting long enough to pull the print off the bed

     

  • Link to post
    Share on other sites

    I wonder if some of you have experienced a decrease in adhesion on the glass after some time which cannot be compensated by cleaning.

     

  • Link to post
    Share on other sites

    Woofy in my post #5 above the first line was directed to you and the rest was directed to super grover. Sorry for the confusion.

     

  • Link to post
    Share on other sites

    Ah! my bad. :)

     

  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
    • Our picks

      • UltiMaker Cura 5.7 stable released
        Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more. 
         
          • Like
        • 18 replies
      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
         
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
          • Like
        • 0 replies
    ×
    ×
    • Create New...