Jump to content
Ultimaker Community of 3D Printing Experts
YarinMobius

Temperture, Closed chamber for my printer

Recommended Posts

Hi everyone,

Our printer here in the studio works great.

Nevertheless, it does this weird thing sometimes when it prints, a layer saparates from the layer next to it and the part comes out not strong as we would like.

I was thinking it's because of suddon changes in temperture in the room (a cool breeze maybe etc'...).

do you have any idea what's the problem ? is it the slicing software ?

Also, I was thinking about building a plastic cage around the printer to keep temperture steady and prevent unwanted changes, can that help? did anyone ever build one and can share some thoughts ?

attached is a pic of the bad print.

Thanks.

Yarin

2.thumb.jpg.b80e1e8ead1660b0c2ce76d402ac1fc0.jpg

2.thumb.jpg.b80e1e8ead1660b0c2ce76d402ac1fc0.jpg

Edited by Guest

Share this post


Link to post
Share on other sites

That looks like Z issues. I think your bed stops moving for a layer or two so you get that extra thick layer, then it suddenly drops a mm or so and you get underextrusion or a gap, then it stops moving for another layer and gives you an extra thick layer again.

Try cleaning your Z screw. Does it usually happen at about the same distance from the bottom of the part? Often having one person slide the bed up and down with 2 hands and the other using a fingernail to insert some paper towel or tissue into the threading is all you need to do. Keep in mind it's a triple helix so you need to get all 3 threads (unlike say a normal screw which is a single spiral).

Also add a tiny bit of grease of course.

  • Like 1

Share this post


Link to post
Share on other sites

A quick way to test if it is a heat retention issue is follow Erin@Fbrc8's suggestion (and a few others, she was just the first to tell me). Just tape a bit of plastic or bubble wrap in front of the open area. I would not cover the entire thing as it would close off the top. This may contribute to a heat build up in the other direction.

  • Like 1

Share this post


Link to post
Share on other sites

I think gr5 is right, that it is a z-stage problem. But don't only look at the z-screw, check the z-bearings.

Lift the bed to the nozzle, and then push it down. or put a full filament spool on the bed. Do you feel/see/hear a point where it doesn't go smooth? With a filament spool it shouldn't get stuck.

If you want to check your z-bearings in detail, unscrew the z-nut from the bed. The bed is then free to move up and down, and you should feel almost no friction over the complete range.

  • Like 1

Share this post


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

    • Architect Design Contest | People
      The goal of this contest is to design a set of people figurines that could be used in such a project to make an area, office or mall seem populated. 
      Think of different types of people in different environments, like walking people, people standing still, working people, and both men and women.
       
      • 31 replies
    • Taking Advantage of DfAM
      This is a statement that’s often made about AM/3DP. I'll focus on the way DfAM can take advantage of some of the unique capabilities that AM and 3DP have to offer. I personally think that the use of AM/3DP for light-weighting is one of it’s most exciting possibilities and one that could play a key part in the sustainability of design and manufacturing in the future.
        • Like
      • 3 replies
×

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!