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kesav

my printer is not printing in 1:1 ratio

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hi very good morning

i was trying to print a skull and i have found that my print is not matching the 3d model it is some what same but it got distorted by Y and squeeze by Z.

my settings in cura shows me XYZ are (49.5, 67.99, 54.99) but it has printed like (49, 73.26, 47).

am trying to post some pics but i couldn't make it can you tell me where to post pics.

Thanks for your help

A watching for your response

kesava

http://kesavart.blogspot.in

 

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Hi kesav,

Is this the Ultimaker 1 or 2? The most common cause of this (on the UM1 at least) is that your belts are not tight enough. Especially the short belts. That shouldn't affect the Z stage but it can drastically change the dimensions in your XY plane. Make sure all of your belts are tight and see how it goes.

Cheers,

Troy.

 

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Hi guys

thanks for your help

ya i have checked belts those are looking fine and i used some objects to make the axis Aline also so that regarding axis is fine i believe.

http://www.thingiverse.com/thing:38300

and i try to install the firm ware but no use..

pl z advise me in this regards

kesav

http://kesavart.blogspot.in

https://drive.google.com/file/d/0B59oa8uNOQnpeTIyTTdTUlpsMG8/edit?usp=sharing

 

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I'm not sure if you can post pictures before 5 posts but the way you do it is go to upper left corner of this page, click "Gallery" then "upload". After you finish uploading make a new post, click "my media", then "gallery images".

If you do not see the "upload" button in the gallery than you will have to post the images somewhere else such as flicker, imgur, facebook, google plus. Then link to the image from your post here.

 

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my settings in cura shows me XYZ are (49.5, 67.99, 54.99) but it has printed like (49, 73.26, 47).

 

The 49 is completely normal and expected. PLA shrinks as it cools.

The 73 and 47 seem impossible. Maybe these axes are slipping? I'd like to see a picture of your finished part. Consider looking at the Z coupler under your bed and make sure the Z screw is all the way in. Compare to assembly pictures - you should see threads almost to the coupler like in assembly pictures.

If Y axis slips you will see a slanted part and will be very obvious. Maybe the Y dimensions included a nose or chin or something that didn't print properly.

 

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I would concentrate on the Z issue as if Z is not moving far enough, then you get overextrusion and it messes up X and Y axis dimensions.

With the platform half way down, try lifting it with your hands. Does the z screw come up out of the coupler? It should stay in.

I'm thinking maybe your Z axis is loose or slipping. Look at the photo in the assembly instructions - is your Z screw inserted all the way? How much can you see of the Z screw above the coupler? Compare that to the photo in assembly instructions. It needs to be all the way in, or it won't rotate properly.

Make sure the set screws in the Z coupler are tight.

If everything seems fine then try calibrating the Z axis by moving it 10mm at a time with a ruler taped against the side of your ultimaker.

 

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