# question:sourcing question:sourcing

Author Comment Last activity Moderation
Glenn "The Kite Workshop Handbook is available on amazon.com. It has detailed plans for building inexpensive workshop kites with a group: https://www.amaz..." | Read more » over 4 years ago
stevie "ohh interesting. I was about to buy the 10x. Any fixes for this? or any troubleshooting success @kgradow1 ? " | Read more » over 4 years ago
richardbowman "@kgradow1 are you using one of the openflexure optics modules? If so, that might explain why the 10x lens didn't work as expected. Finite-conjuga..." | Read more » over 4 years ago
richardbowman "Hey, for the Openflexure Microscope I tend to buy the lenses from Aliexpress, usually Sunlight Optical but there are many suppliers. The mass-prod..." | Read more » over 4 years ago
gretchengehrke "Also, I just saw on comptox.epa.gov that acetone is actually more hydrophilic than isopropanol, which totally surprises me! I guess vapor pressure ..." | Read more » over 4 years ago
gretchengehrke "Either acetone or 99% isopropanol are probably fine, and maybe we should do a comparison. The only concern I see with isopropanol is that it has a ..." | Read more » over 4 years ago
Bronwen "I think it probably depends somewhat on what we need the cleaning agent to do: alcohol and acetone work a little differently, and acetone will like..." | Read more » over 4 years ago
warren "@asnow @bronwen " | Read more » over 4 years ago
warren "@gretchengehrke mentioned: Isopropanol has pretty similar properties, but the commonly available rubbing alcohol in drug stores is 70% isopropanol..." | Read more » over 4 years ago
warren "We also found some Tyvek here: http://www.diyhomecenter.com/dupont-tyvek-homewrap-roll-9x150 Tyvek HomeWrap - 9' x 150' - 1 Roll…Shop DuPont Tyve..." | Read more » over 4 years ago
warren "Also via our NASA AREN partners: Aircraft spruce! http://www.aircraftspruce.com/catalog/wppages/capstrip.php " | Read more » over 4 years ago
warren "Via our friends at NASA AREN: spruce sticks -- https://www.aircraftspruce.com/categories/building_materials/bm/menus/wp/spruce.html 1/8" foam cor..." | Read more » over 4 years ago
kgradow1 "The cost of all of them actually vary a lot. We took a 40x apart at the barnraising and realized it only has two lenses inside of it, which seemed..." | Read more » over 4 years ago
stevie "hmm maybe we could get 1 or 2 10xes. Any idea why the cost on the 10x ones here vary so much? http://www.amscope.com/accessories/objective.html?i_m..." | Read more » over 4 years ago
Bronwen "I think you have to aim to be in a well ventilated area for pads too: pouring acetone might not be too terrible depending on what kinds of bottles ..." | Read more » over 4 years ago
kgradow1 "I'd love to work through a build at 4x or 10x, which should a much simpler in terms of onboarding and just learning how to use the scope. At those..." | Read more » over 4 years ago
stevie "ok great! we'll start with the 40x thanks! " | Read more » over 4 years ago
kgradow1 "Do you mean which magnification? Either 40x or 100x are good. I think the 40x is slightly easier to start with, since it's easier to find your m..." | Read more » over 4 years ago
stevie "Hi @kgradow1 wondering which lens you would recommend for a starter kit for imaging some of the PM materials we've been speaking about? " | Read more » over 4 years ago
kgradow1 "40x for $22: http://www.amscope.com/40x-achromatic-microscope-objective.html 100x for$31: http://www.amscope.com/100x-achromatic-microscope-oil-..." | Read more » over 4 years ago
warren "Copying in that discussion here, as it belongs here more appropriately: Also thinking of making a kit -- here are individually packaged acetone wi..." | Read more » over 4 years ago
warren " Just a note that we'd looked at some single-use acetone nail polish removing pads, because people wouldn't necessarily need a whole bottle -- but..." | Read more » over 4 years ago
warren "Hi, @gretchengerhke - would acetone melt nitrile or latex gloves? I'm thinking of how to ship some things like cotton scrub pads and safety gear wi..." | Read more » over 4 years ago
Bronwen "Ah ha! Let's also have some: Tyvek tape or 3M construction tape Kite line and swivels. Well illustrated andbook including different kinds of kite s..." | Read more » over 4 years ago