Answered Help!! giant divot in my bed glass

The R1 has been discontinued and Robo doesn't seem to have any parts for it. You have a few options. In order of ease:

1. Go to your local hardware store and get a piece of picture frame glass that it the size of the bed and use binder clips to hold it in place over the existing glass bed
2. Get some other bed sticker, like Buildtac or PEI sheets and secure it over the existing glass
3. Replace the bed with a piece of Aluminum, there are several threads here with users documenting changing out the bed.

 

Nah, the heater is under the glass, you just want the float glass or sticker @WheresWaldo mentioned above to keep it from getting worse (It will if it gets printed on)

 

whatever they would recommend I'd suppose. I've had hit or miss luck with the glass place local to me. Finding a piece of glass at lowes that fits seems to work well. (the glass place by me stresses the edges so anything more than 40 c and the glass they cut for me shattered- crazy lol)

I use a sheet of PEI on all mine. You can look at the thread in the mods and upgrades section if your curious about it.

 

I bought mine at the link in the thread (www.printedsolid.com). Thats honestly the only PEI I've used so can recommend another source

 

I use the cheapest picture frame glass I can get. Other than dropping one piece I have never broken or chipped one as a result of the relatively low temperatures used in Bed heating, I think Lowes glass is 0.125" (1/8"). I should mention, Lowes will cut the glass to size, you just pay for the next size up. My local Home Depot no longer cuts glass.

If you go to a glass shop, do not tell them it is for a 3D printer otherwise they might try to sell you another piece of Borosilicate glass (same as the Robo bed). It isn't a matter of if borosilicate will chip, only when it will chip.

 

I have heated plain old float glass to over 100°C to print ABS with no adverse affects.

 

The only reason to use Borosilicate (the glass once known as PYREX) is when you are doing sudden and extreme temperature variations.
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