Vat and FEP

Updated 2 days ago in General Discussion
10 on November 29, 2018

So this “proprietary” polymer film in NO WAY will last all that long. Anybody here take the vat apart yet? I’m wondering if we will be able to remove worn out polymer and replace it with a good FEP sheet.

 
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1 on November 30, 2018

the life time of UNIZ resin tank with Natural Peeling print mode is much longer than other brands. But if you use UDP mode, the lift time will be much shorter. That’s the cost of high speed. We are developing new film to make it longer life for UDP mode.

on December 1, 2018

That remains to be seen. So far from what I’m seeing the Slash OL is a typical half baked KS 3D Printer which REQUIRES the end user to MAKE it work.

Proprietary 3D Printers NEVER succeed when sold via a KS campaign. Proprietary products only work when sold as a complete package along with hands on support. You can’t have it both ways.

UNIZ sold an incomplete product and as such we the KS supporters MUST be able to help UNIZ make it work. It would be a good idea for UNIZ to go along with that and not try to fight it with a proprietary mindset. It does not have to be completely open source for the users to make it work right. Perhaps UNIZ’s proprietary film on the vat IS better than FEP. We shall see! If not and the VAT is designed in such a way that I the owner cannot replace the vat film, then you can be assured that someone WILL scan the vat, modify it and 3D Print a copy which WILL allow the user to change the film!

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4 on December 2, 2018

The film they use is useless as far as I’m concerned. I’ve found a decent replacement film from flexvat.com. Just buy the 5 foot roll and cut the size as needed. You lose the new foam liner they use on the bottom but if you print in standard mode it works just fine. Changing the film isn’t that difficult, put a screw in one corner then move to the opposite corner and so on, all while pulling on the film to keep it taught. 

on December 6, 2018

Thanks, that is is so helpful. Mine tore after a few prints… Not sure how, not even in place were I printed.

on December 6, 2018

Thanks Brian. Do you have a Slash OL? Do you have the vacuum running too during Peel Mode? The vacuum makes this thing just about impossible. If the FEP or polymer cannot stretch upwards the stuff it can’t release!

on December 8, 2018

I have the Slash+UDP. How do you control the vacuum? I’m running in node UDP mode so I assume that would turn off any vacuum system. The flexvat film does start to cloud but if you don’t print everything in the exact same spot it will last longer.

on December 10, 2018

The Vac has to stay on. It stays on during Peel mode. The UNIZ “engineers” designed it that way. The bed can’t be level unless the film is pulled flat against the glass. Of all the SLA systems we’ve looked at this one is just about the worst we’ve ever seen. Even the open source kits are better designed than this thing. Add to that the bait and switch CRAP these people pulled with the Slash OL at 150 microns and this thing is a total waste of money at any price. If this is Chinese Engineering the U.S. and European markets have nothing to worry about! LOL!

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1 on December 17, 2018

I can report here that after less then 1 bottle… Half a liter… The polymer on the vat gets holes in it. Thanks to the vacuum, the polymer on the vat is drawn tight on to the lcd screen. It is also drawn tight on the spacer for the LCD screen at the top of the screen as well as the black tape on the bottom of the screen. These two places, the tape and the plastic space, have corners and points on them which fairly quickly create holes in the polymer. Yet another design FAIL for UNIZ! Anybody keeping score? This machine is not a viable product. Not at all.

on December 17, 2018

Same here. Vat gets holes poked into the bottom of the vat right where the plastic spacer is on the top of the LCD.

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0 2 days ago

Incompreensible!!!!!!! are uniz working to send us a vat with a permeable membrane like carbon3d or similar machines thats works fast and really well????

Uniz has fast resines, but we need an good membrane to do the works correctly and fasts!!!!!!!!

 

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