Solved Bad Prints

Hi All,
I'm new to the ROBO 3D + printer....I have a problem when I try to print out projects. I have been using the M3D printer for awhile but I wanted to get bigger. Here are some pic of my bad prints.
I'm using Hatchbox PLA filament.

 

I think more info is needed to help you out. What are the heat and speed settings that you are using and are you printing via usb or sd card


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Hi,,,thanks for the reply.....Nozzle is at 210 and bed is at 50..Using the USB port...I Will post pic of speed. Also now when I print the test circle. 1 side of the bed is lower than the other...I have manually calibrated it several times. I posted a pic of that also.

Thanks again
Barney

 

With the one side of the bed being lower , it may be that one side of the z axis is slightly high. Mine shifted a lot in shipment and was out of square a good amount. You should measure the distance between the X axis rails and the bed, if one side is higher you will need to manually turn the z screws until you have it parallel to the bed, it shifts occasionally and is really easy to fix and check make sure you use a pair of calipers or make a calibration block out of wood, something you can set under each side to adjust the height. You should also check that the heated bed is sitting on the rails properly, it should be firmly attached to the magnets that hold it to the rail.

As for perimeter speeds I usually run 50 mms on the inside and 35-40 on outside perimeters and support, 10 mm for bridge speed.

Along with heating the bed I like using glue stick to help get the prints to stick. But from the picture of the calibration circle I would say your first order of business should be to check the height of the X axis over then bed. It looks like it is way out of square and the 9 point bed calibration won't fix that


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Hi,
I did the X axis screws...used a digital height meter on it from bed to rails...When it started the print and did the auto level it seems to have changed my settings.

 

Which settings seem changed?


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The bed becomes uneven again. Like I never moved the X axis screws.

 

Could you post a picture of each z axis screw?


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Sure here they are.....

 

Looks to me as if the brass nuts that are showing are not seated properly. I had the same issue, a lot of these issues are from it being banged around in shipping, parts move around


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You can fix it but it may be frustrating. You have to rotate the tread and hold the brass fitting and the z axis carriage to try and get the brass fitting further into the z axis.

I think it affects the interaction of the limit switch on the z carriage and if it does not contact correctly that specific side continues to rotate and throws is out of square


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Hi again,
That was some of the problem. Now that I fixed that, the Z axis is traveling up instead of down. When it tries to HOME the print head goes up from the bed. No wires where disconnected everything looks good.

 

How do I fix that? They look ok.

 

Thanks Mark that did the trick. My prints are still coming out bad... Here are some pics of the box calibration.

 

I returned the printer and they sent a replacement.. Plugged it in and it works great.