Velleman Glass Panel for 3D Printer

I've been using 2 sheets for a year now so thought I'd provide an updated review.As the listing suggests this isn't borosilicate glass, but tempered (strengthened) glass. From my experience (and considering the price) don't let that put you off. It's actually proved to be a high quality piece of tempered glass, cut perfectly to size and complete with nicely chamfered edges that are beautifully smooth. Even the packaging the glass arrives in is good quality and protective, which all points to care having been taken during design and manufacture.The size (215x215x3mm) perfectly fits the heated bed of the Malyan M150 3D Printer (i3 Prusa clone) and a number of other suitable 3D Printers (check your machine's print bed size) and so allows the nozzle to print right to the edge. Be aware that some printers have screws in the four corners of the print bed that aren't flush fitting and actually stand proud of the print surface. This may stop square glass like this from fitting correctly, so please check your sizing carefully.During the past year and hundreds of prints I've tried to handle the glass with care but admittedly I have dropped it from a few inches onto a granite worktop once, without issue. The glass remains complete and solid with no chips or cracks. The brass nozzle of an extruder has attempted to bury itself into the glass on one occasion and, on a day I was really tired, the nozzle height was set incorrectly and the printer actually printed with the nozzle flush to the glass for a complete layer. No filament appeared (doh!) but neither did any scratches!One sheet of glass I received seems perfectly flat and of equal hight across the surface, the other sheet has a slight variance in the middle where it drops by approximately 0.1mm This obviously isn't perfect (though bare in mind that glass is often not perfectly flat) but I've not really found it to be an issue. Either I use that piece of glass to print smaller models in the middle of the plate, or I increase the first layer height to 0.3mm, and by layer 2 or 3 any issue with an uneven layer height is resolved.Using the glass with a heated bed is recommended for PLA and PET-G etc. and it's needed when using ABS. When the glass has cooled it's usually easy to remove prints that either pop off or come away with a little persuasion. If they do get really stuck (such as when using heat and glue) carefully sliding a snap-off knife blade under one corner does the trick. It's also possible to print cold when using PLA but a layer of water-based glue-stick or a thin coat of hairspray is recommended.It's also possible to rough up the surface of the glass using a power tool and 1000+ grit glass paper, which will make prints stick to the surface with even greater ease. But this will remove the glossy finish some people love that smooth glass achieves, and it's a task best suited for experienced diy'ers as a poorly sanded face could lead to uneven thickness issues - especially around the edges.I've definitely been very happy with my purchase and would recommend this to anyone with a suitable 3D Printer who wants to give glass a go.

This frankly this is a bit big for my Wanhao i3 plus. I needed to Dremel the corners off to allow for the adjusting screws on the Wanhao.If you have that facility and a couple of bulldog clips, this is a good alternative to the standard stick on sheets. Let me know if this helps!

Happy with velleman (buildtak)Nice packagind and the product looks good.For best results (printing without hair sparay,glue,paint,space liquid,magic etc)sandpapper the face of the glass with 1000+/gr.this way the prints will stick as long the bed is hot,and when cooled down the parts will be ready to be taken without hammer,ninja blades and/or a small forklift.Plus you get a insane smooth mirror like surface for prints.Sandpapper like you mean it,till the parts stick to glass.

bought to use on my Anet A8 (although the print bed is slightly larger than this sheet) its never been a problem and has highlighted just how warped the stock hotbed is. prints however come off this with a mirror finish and with a little hairspray a minimal amount of warping (up your hotbed temp by about 10 Degree C to compensate however)

Despite it being Amazons number one choice for Ender 3, its too small - my own fault for not checking the dimensions.

seems to be working very well, getting much better prints, smoother bottom surface and great adhesion in combination with insette hairspray

Great job at making the perfect prints

Not a lot to say about a sheet of glass other than that it works brilliantly on my Anet A8 and along with glue sticks offers brilliant (often too brilliant!) adhesion with all filaments I've tried. Pair it with thumbwheels or auto-bed leveler though as it will cover the adjustment screws on the bed.