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SoliForum - 3D Printing Community → Projects → Needing clogged hot ends
I have a friend trying to develop a product that's non toxic and water clean up that will disolve abs plastic and can be used to clean out a clogged hot end. i know a dream come true. i know many have clogged hot ends is anyone would be willing to help it would be greatly appreciated
push some ABS in your extruder then let them cook 15 minutes at 220 degC.... tada.... clogged extruder 
I'm just curious- what hole in the market will this fill? Acetone is pretty safe, despite its toxicity. With all-metal hotends, it is possible to just turn clogs to ash at higher temps (done this a couple times now). Not knocking it, I'm just curious.
Well the low toxicity is a very key element he was touting. it should work faster be safer and unlike acetone it can be shipped through the postal service. it also doesn't explode if it evaporates and a ready ignition source is near by
Acetone isn't really toxic, your body produces it.
Who cares about shippability when you can pick it up at any hardware store?
Dissolve PLA, then you have something to write home about.
Acetone isn't really toxic, your body produces it.
Who cares about shippability when you can pick it up at any hardware store?
Dissolve PLA, then you have something to write home about.
+1
http://toxtown.nlm.nih.gov/text_version … s.php?id=1
How can acetone affect my health?
Exposure to high levels of acetone can cause death, coma, unconsciousness, seizures, and respiratory distress. It can damage your kidneys and the skin in your mouth.
Breathing moderate-to-high levels of acetone for short periods of time can cause nose, throat, lung, and eye irritation. It can also cause intoxication, headaches, fatigue, stupor, light-headedness, dizziness, confusion, increased pulse rate, nausea, vomiting, and shortening of the menstrual cycle in women.
Breathing highly concentrated acetone vapors can irritate the respiratory tract and burn your eyes. Skin contact with acetone can irritate or damage your skin.
Exposure to acetone can also cause low blood pressure, bronchial irritation, difficulty breathing, shortness of breath, abdominal pain, and an increased need to urinate.
If you think your health has been affected by exposure to acetone, contact your health care professional.
http://web.epa.state.oh.us/opp/solvents/fact34.html
now lets thin you are working in a enclosed space with a flammable solvent that evaporates readily and easily into the air and you have a nozzle that heats to over 300 degrees
some precautions may be advisabel to limit the use of a flammable material
elmoret wrote:Acetone isn't really toxic, your body produces it.
Who cares about shippability when you can pick it up at any hardware store?
Dissolve PLA, then you have something to write home about.
+1
I don't think anyone was suggesting a person bathe in the stuff 
Easy there chief!
EPA EPCRA Delisting (1995). EPA removed acetone from the list of "toxic chemicals" maintained under Section 313 of the Emergency Planning and Community Right to Know Act (EPCRA). In making that decision, EPA conducted an extensive review of the available toxicity data on acetone and found that acetone "exhibits acute toxicity only at levels that greatly exceed releases and resultant exposures", and further that acetone "exhibits low toxicity in chronic studies".
As long as you're not huffing the stuff, its fine. They wouldn't put it in nail polish remover if it was as toxic as you claim.
Easy there chief!
EPA EPCRA Delisting (1995). EPA removed acetone from the list of "toxic chemicals" maintained under Section 313 of the Emergency Planning and Community Right to Know Act (EPCRA). In making that decision, EPA conducted an extensive review of the available toxicity data on acetone and found that acetone "exhibits acute toxicity only at levels that greatly exceed releases and resultant exposures", and further that acetone "exhibits low toxicity in chronic studies".
As long as you're not huffing the stuff, its fine. They wouldn't put it in nail polish remover if it was as toxic as you claim.
This is one subject I wish more users would take the time to become more educated.
I can grab several household (supposedly safe) cleaners from under my kitchen sink that contain several chemicals substantially more hazardous to your health than acetone.
Is it ethyl acetate that dissolves PLA? Is it rather toxic?
elmoret wrote:Easy there chief!
EPA EPCRA Delisting (1995). EPA removed acetone from the list of "toxic chemicals" maintained under Section 313 of the Emergency Planning and Community Right to Know Act (EPCRA). In making that decision, EPA conducted an extensive review of the available toxicity data on acetone and found that acetone "exhibits acute toxicity only at levels that greatly exceed releases and resultant exposures", and further that acetone "exhibits low toxicity in chronic studies".
As long as you're not huffing the stuff, its fine. They wouldn't put it in nail polish remover if it was as toxic as you claim.
This is one subject I wish more users would take the time to become more educated.
I can grab several household (supposedly safe) cleaners from under my kitchen sink that contain several chemicals substantially more hazardous to your health than acetone.
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