mendelmax calibration

Hi all I'm new to to 3d printing, I'm also not sure if this is the right place to put this, anyway I just finished putting together my mendelmax 1.5 with a RAMPS 1.4 board and I'm not sure what is happening please take a look at the calibration cube I made, Can someone tell me why it prints great but then it seems like instead of keeping square it starts to get round. Any help is greatly appreciated thank you.

Looks like there's too much heat on those small layers, so the previous layer isn't fully solid by the time the next one is laid down, causing everything to turn into a blobular mess. You need a small fan blowing on the in-progress print to vacate that excess hear and cool the just-laid-down layer. Another way to improve things a bit is to set your slicer up with a minimum time per layer--say, 10 or 15 seconds.

Otherwise, it's looking pretty good!

thanks for all the help I am going to try that

Printing with a fan only works with PLA, if you do that when printing ABS, your prints will warp and detach from the print bed.

But it looks like you are printing with PLA

i'm to try to calibrate my mendel max1.5 what program are you using sprinter or marlin?

I'm setting Merling on my can yougive me a tip or two on the basic for setting on the mendelmax 1.5

thank you

as others have previously stated, enable in cool feature of your slicer the ability to slow down prints. the layers need to be below glass transition temp when the next layer above goes on top. this prevents squishing and bulging of the par you are making in narrow structures such as this test. set minimum layer time to at least 15 seconds, and fan speed to full if using slic3r.

Edited 2 time(s). Last edit at 01/13/2014 11:37PM by jamesdanielv.