petri dishes

Forum dedicated to discussion and technical support centered around the LittleRP affordable, open source 3D resin printer.
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Bill_K
Posts: 1
Joined: Thu Oct 30, 2014 12:28 pm
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petri dishes

Postby Bill_K » Thu Oct 30, 2014 12:38 pm

those nalgene 5500 petri dishes seem to only come in 10 packs for over $100.
Has anyone found a source for single purchases? Or maybe a group purchase? but are they depreciated? it seems like a really good idea but I read somewhere about custom injection molded replacements being made for this project instead.

goopyplastic
Posts: 236
Joined: Sat Mar 29, 2014 6:16 pm
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Re: petri dishes

Postby goopyplastic » Wed Nov 26, 2014 5:36 pm

The Nalgenes will always be an option, there are a few places selling singles I believe. The main downside to the Nalgene dishes are that they are shallow and somewhat thin material, thin material means that setting your zero position with the build plate is a little trickier as you can bow the dish down. Also if you have a print that is large enough that the printing process is stickier the dish can deform over time.

The corning glass dishes are a nice off the shelf alternative, you just have to be careful when printing on glass dishes, if the pdms tears and resin reaches the glass you may end up with a situation where the dish could be broken from the separation stresses.

We will have thermoform and assembled acrylic dishes available as well through a web store.


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