Jump to content
Sign in to follow this  
entomophile

Easy UM2 "Door"

Recommended Posts

Posted · Easy UM2 "Door"

I have been doing a lot of printing in ABS lately; some very large parts. And of course I am having issues with warping. The basement where I print is pretty cool and I thought that could be adding to the problem. So I decided to make a lexan cover for the front of my UM2 to prevent drafts and hopefully even out the temperature in the build chamber.

I cut out a piece of 12" x 12" lexan. Originally I was going to hold it on with neodymium magnets but they weren't strong enough. I would have had to drill out my UM2 and insert opposing magnets in the case.

Finally, I settled on velcro for a quick, air tight, and completely reversible solution. Full 1" strips down the sides and half strips at the top and bottom. It's not nearly as elegant as Kris' door, but it works. I have to make a few more prints to see how much it helps without a top cover. I am hoping the convection currents from the build plate can stabilize the temperature without a top cover.

20150216 10464520150216 10562520150216 10564020150216 111035

 

Share this post


Link to post
Share on other sites
Posted · Easy UM2 "Door"

And to cover the top of the printer - One of those boxes that holds paper is the perfect size in all 3 dimensions. These boxes are from office supply companies like stapes and are sitting around near photocopy machines at work. Tape it to the top of the UM2 and there will be a nice gap in the back for the bowden to move around. With a front door and a top, and with the bed at 100C to 110C you will get an air temp of around 40C which means your ABS will shrink half as much as normal during the printing phase (and then shrink the second half after printing is done. This is now similar to PLA.

PLA shrinks about .3% from glass temp to room temp (60C to 20C). ABS shrinks about .6% from glass temp to room temp (100C to 20C).

 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Our picks

    • Ultimaker Cura | a new interface
      We're not only trying to always make Ultimaker Cura better with the usual new features and improvements we build, but we're also trying to make it more pleasant to operate. The interface was the focus for the upcoming release, from which we would already like to present you the first glance. 
        • Like
      • 182 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies
×
×
  • Create New...

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!