26 Reply by carl_m1968

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Re: glass for glass bed

mark.giblin wrote:
dubbsd wrote:

I ordered a piece of tempered glass friday from the largest glass company in the area and was told they do not keep it in stock and had to order it . it will be 3 weeks.

A glass supplier that has to order in some tempered glass..!?!?!

I have in all the years of having to go to glaziers, never known any glazier to not carry the glass needed for the job...

Question is how much is it costing? $10, $20, $30 as you could likely have gone to a junk / pawn brokers / thrift shop, tossed $5 at the clerk for that old scanner and just ripped the glas bed out of it.


The one I went to here in Carrollton had to order it as well. It seems they do not ground the edges in house and that is what has to be done somewhere else and that is why they have to order it.

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27 Reply by Grendel

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Re: glass for glass bed

it begs the question as to whether you can trim a scanner bed to the correct size? if so how do you do this, I am guessing a standard glass cutter is not an option, I too have some scanner glass just lying about ( I strip old printers down for the gears and shafts), but the beds on them are generally A4 or larger.

28 Reply by mark.giblin

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Re: glass for glass bed

dubbsd wrote:

when i ordered the glass I did not think about scanner or copier beds. bad thing is i have an old scanner on hand.

Well theres old and there's old...

Older scanners are often junk these days BUT are better built, more accurate and higher resolution.

My scanner I have at the moment can scan at twice the DPI than one you buy today. Main reason is counterfeiting had taken advantage or ultra high resolutions you got on old scanners. SO... if it does really high scan rate like more than 128000 dpi you could sell it (if in full working order) for a tidy sum.

If its a fairly recent scanner and 1200dpi is its best and you're pushed for glass, then go ahead, re-purpose the scanner bed.

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29 Reply by mark.giblin

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Re: glass for glass bed

Grendel wrote:

it begs the question as to whether you can trim a scanner bed to the correct size? if so how do you do this, I am guessing a standard glass cutter is not an option, I too have some scanner glass just lying about ( I strip old printers down for the gears and shafts), but the beds on them are generally A4 or larger.


Borosicicate glass cuts just the same as regular glass however the score line need to be firly hard and the break has to be completed along the cut line and evenly or you end up with broken glass.

If you go on Youtube, you will find plenty of tutorials on how to cut tempered glass, it DRILLING it that you can't do, if you couldn't cut tempered glass to size then there would be a prblem as all items needing it would need to have speciallt made sizes, that just doesn't happen.

If you watch how its made on youtube or TV catchup, watch the one about Pilkington Glass, they make tempered glass that is meters wide and as long as a lorry and the glass comes off in a constant process, when cooled, the machine cuts and breaks glass and it does not shatter.

Bob's your uncle (and likely your father too...)
I laughed that hard, I burst my colostomy bag.... (When I got my GeeeTech Pi3 ProB)
Prusa i3 MK2 clone by GeeeTech aka Pi3 ProB with a GT2560 board on MX17 Linux.

30 Reply by dubbsd

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Re: glass for glass bed

until my tempered glass gets here I am using Mirror tile and hairspray.
working great so far and at $10.00 for 6 sheets it will probably
be a while before i install the tempered glass.

Thanks
Dale

http://soliforum.com/i/?9hS9F4n.jpg

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31 Reply by yizhou.he

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Re: glass for glass bed

Looks great! I'm going to try some mirror tile, looks so cool. My current setup I can see the double sided tape through the glass, which is not the best looking for sure. Mirror will definitely improve the view.

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32 Reply by Ski52

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Re: glass for glass bed

When I used to work, we built 'government' computers, scanners, printers, etc.  The glass in the large HP scanners had to be replaced with a copper embedded glass to stop emissions.  We threw it away.  I cut a couple of pieces of the scanner glass with a new glass cutter and have been using the same 2 pieces for just about 5 years.  I don't use Kapton tape as it is an insulator.  I use IV tubing clamps to hold the glass to the bed as I remove each print as soon as it is completed, I refuse to waste the time to let it cool to ambient temp and take 30 min to reheat to operating temp.  I use hairspray and have to pry the print from the glass.    It works fine. 

Keep it simple....

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33 Reply by mark.giblin

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Re: glass for glass bed

I was in my local craft shop with a friend who was in need of some picture frame inserts and I came across this...


http://soliforum.com/i/?ZHg9egI.jpg
http://soliforum.com/i/?rX7ONSI.jpg

Picture frame glass may not be as tough but it will do in a stop gap situation.

Bob's your uncle (and likely your father too...)
I laughed that hard, I burst my colostomy bag.... (When I got my GeeeTech Pi3 ProB)
Prusa i3 MK2 clone by GeeeTech aka Pi3 ProB with a GT2560 board on MX17 Linux.