There’s no way to level the bed on to the vat with this Slash thing. WTF?!?
Let me guess… the “Engineers” at UNIZ think the factory leveling will actually work????
Also, this proprietary polymer crap they are using DOES NOT RELEASE! WE WANT PLAIN FEP! We do NOT care about UDP!
Dear TobyC, Sorry for the inconvenience caused. Could you describe more details about your problem? It’s better to upload some photos. What kind of level issue did you meet? All printers had leveling checking procedure in factory before shipping. Please provide more info for us to improve. Many thanks.
PS: our printer has a vaccum pump to suck the film of vat and make it adhere on LCD screen.
Wait?! You have a WHAT?! “to suck the film of vat and make it adhere on LCD screen.”
I can see this for your UDP gimmick which I cannot get to work, but for typical DUP SLA or LED/LCD masked 3D printing this makes no sense!
It seems to me UNIZ does not understand how DUP 3D printing is supposed to work. The FEP or polymer at the bottom of the vat must stretch while the bed raises the layer upwards. The stretch which centers on the printed object allows the release. I do not see this happening with the Slash OL. Not at all. What I do see is the Z axis straining to pull upwards to the point that the lead crew and stepper motor starts missing steps! When there is a release its a release from the bed and NOT the vat! If there is a vac pulling the polymer away from the bed and back to the LCD it is probably going to do so in a uniform manner. As such the surface of the polymer will not stretch upwards. NO RELEASE!
I just confirmed what Hansen wrote. I removed the bed form the machine and the vat is clean of all resins. I started printing a very small object so I could look with less danger of the UV. What Hansen wrote is correct. UNIZ vacuums the air out from under the vat so that the polymer is pulled back on to the LCD screen. This makes it virtually impossible to operate a Direct UV Printer reliably!! The polymer in the VAT MUST BE ALLOWED to stretch upwards! Has anyone been able to get reliable (RELAIBLE MEANS IT WORKS EVERYTIME UNLESS THE USER SETS IT WRONG) prints with peel mode???
ALL SLA (that is not fully immersed in a resin bath) uses some form of surface on one side, a bed on the other side which sandwich the resin. This surface must be somehow get removed from the cured resin layer. Many do a tilt and a pull or peel. AD did a rotate and pull. Wanhao, Anycubic, Phrozen and all the others in China ALL get the tilt from the stretch of the FEP film. Without the tilt you have 2 flat parallel surfaces which are glues together with cured resin. There’s a natural suction between these parallel surfaces which make the surface difficult of not IMPOSSIBLE to remove. It is NOT a simple straight upwards pull! From what I see this Slash OL is getting the tilt by BENDING the Z axis arm while it is straining upwards!
