Hi all, new to the world of 3D printing and just got me self one of these Da Vinci printers, hmm, steep learning curve!
One of the problems I've had is in printing a large'ish block, 140 x 50 x 50 is that at one end, once the print was about 6 layers in, one end lifted about 1 mm off the bed. The print seemed to cope with it and leveled out after about another 5mm in hight and the rest of the print was fine. Could this be due to too little or too much of the Prit type glue on the bed? Is there an alternative to this glueing the bed?
Loads of other questions but I'll leave them for another time.
Are you running stock firmware or repetier firmware? What slicer program are you using XYZWare, slic3r, kisslice, Simplify3D, or other?
If you are running stock make sure your bed is calibrated.
I have my z offset at 250
In XYZWare the only thing you can do is print with a raft.
In slic3r and kisslicer set first layer height to 2.5mm
In Simplify3D you will need to set the Z axis to 0, so in the start up g code section add G1 Z0.
If you are using repetier firmware, I am not sure what tips to give for it hopefully someone else can help with that.
Sorted it thank you. Never belive what it says in the manual about not altering the calibration, set in the factory my foot!!
Got to the point where I was having problems printing anything so in desparation I ran the calibration option (for the first time) and it failed!!!
Now have the offset at average 220 with max 5 deviation. Printing like a dream now :cheer:
Final note on this topic.
I used all of the glue supplied with the printer and it seemed ok. I also got a tube of PritStick but got mixed results with it. I finally got a box of a dozen tubes of Uhu stick from ebay for 6 quid, what a difference!
The difference between them seems to be that the Prit glue is very soft and does not lay on the bed evenly. The glue that came with the printer is a bit firmer but still has some issuses. The Uhu stick by comparison is quite hard and leaves a nice thin film on the bed. This thin film sticks the ABS with no problems and can even be usesed a good few times before needing to be cleaned off and re-applied. Also Ive found you have to let the bed cool right down to get the prints off, just waiting for the time I crack the glass doing this now!
What I do when I need a large, thin piece to stick is to put a thin layer of glue on at about 70C and let the bed cool down to room temp. Then, on top of the glue, I paint a thin layer of 'ABS juice' and then print.
It sticks and it sticks good! :cheer:
will ABS juice damage the heat bed over time? Like produce a build up that I can't remove? I don't know much about it...off to do some googling though...
No, not any more than the glue does. I use 2 step acetone and windex method and use a razorblade scraper to clean the glass.
The Uhu->ABS Juice combo generally requires the razor blade to remove the part from the bed so I usually clean it at the same time.