Best print bed surface for RoBo

I am looking to add a surface on top of the heated bed to protect the heating element. I am thinking of maybe adding glass over the heat pad. Does anyone with 3D printing experience know of the best surface to print on? Or if there is not a single surface maybe I could get more than one but the same thickness so I could switch them out for printing different filament materials without have to recalibrate.

 

abs and pla both work on boroglass.. 1/8" thick

 

Will the glass transfer the heated bed heat good enough?

 

good enough to print. that's what I'm using now and works just fine.

if you want better heat distribution place a piece of 1/8" aluminum underneath the boro, then you'll have the best of both. aluminum spreads the heat evenly into the boro, and the boro maintains flat build surface. so long as your aluminum is flat and doesn't warp.

for larger prints with plastics that tend to warp (ie abs nylon etc), better heat distribution will help with the warping.

i don't use aluminum just because i haven't found any that stays flat when heated. If you get something too thick, it effects other aspects of the machine.

 

Where can I get the boro glass? Glass shop? Home Depot?

 

Heat-Resistant Borosilicate Glass ?

http://www.mcmaster.com/#standard-borosilicate-glass/=ndo9m5

 

http://forums.robo3dprinter.com/index.php?threads/borosilicate-glass.686/

 

Ok so I ordered a piece of 1/8" Borg glass and 1/8" Garolite. I am hoping they will both be exactly the same thickness so I can switch them out for printing nylon.

The clips that came with RoBo will hold it on right?

Harry.... Or anyone else with glass one your RoBo.... when you get a chance could you post a few pics on how it is clipped on? Thanks.