hey everyone, my printer design is now up on kickstarter, if you can help out that would be awesome, if not just sharing the link around also helps. https://www.kickstarter.com/projects/917928346/dollo-3d-a-3d-printer-that-prints-more-3d-printers?ref=user_menu
I admire the goal and have been watching it for quite some time (now and then) but I’d like to see it printing, some prints that can be executed on it and maybe some statement that you’ve used one of your prototypes to print hundreds of hours and what toll did that have on the printing performance etc … a little story 
Look very cool are you going to publise the stl files ? How big can you get it befor the fram start to bend ?
@Nadav_Mavor the stl files are already available on my Github http://github.com/benbeezy/dollo it can get to about a foot before it has large issues. But I made it so you can if you want reinforce the core with metal rods and buts to make it much larger.
@Florian_Ford go on my YouTube and you an see a early printing video. And we doing the kickstarter so that we can spend the time to do say 200 Hour print time. If it was fully finished and polished we wouldn’t need a kickstarter. We need people’s help so that we can finish up those type of details.
Cool idea with the edges
My understanding was that kickstarter is done for ramping up production not testing the heck out of the beta prototype(s). BUt i wouldn’t know, I haven’t done any so good luck with yours, it’s nice people still keep the replication in the reprap alive.
for us kickstarter is to put the final touches on something that we have proven to concept of. If we didn’t need to do any more test or polishing it would make more sense to do something on say mass dropdrop, but we don’t already have boxes designed and ready to ship. Almost everything on kickstarter is to ask for the last 10% to finish the product. This is why it takes a few months normally to get the thing in the mail.
Sad to say, but I think the filament printing craze has run its course as evidenced by tons of used printers showing up on Craigslist and eBay. There are very good new machines now in the 200-350 dollar range. So I believe you are too late to the starting gate. SLA printing is the next generation. Faster, more precise, and with engineering qualified polymers that can actually make a final product.
@John_Hansknecht
SLA is very toxic, it sholuld never get into people’s homes. Companies have filtered rooms and processes in place to wash off the toxic chemicals (and maybe flush it down the drain to poison the environment). Unless there will be SLA resins that are non-toxic NOBODY that cares a bit for his/his family’s health should dream of those… unless you are completely ignorant and don’t care.
If anything, SLS for home use is the thing we should be waiting for.
You gave the standard response that fused filament lovers always give. Before you go calling people ignorant, I suggest you read the msds of the products you are talking about. There are 10,000 different resins that are two part cured resins. Almost any of them can have a UV catalyst made to match the cure requirements. One such UV cured resin is the one that dentists use to make fillings now instead of the old amalgam fillings. Highly toxic? I don’t think it would be approved for dentistry if toxic. So with SLA, one can get resolutions to 10 um quite easily. Non toxic, engineered resins that are ASME approved which means I could manufacture a device that can be rated for use in a pressure system. A valve for example. This is something that could never be accomplished with fused filament because you cannot guarantee the integrity.
I’m not anti- fused filament. I am one of the TIKO backers. But now that I have seen SLA in action, that will be my next build.
I am not particularly fond of FFF either from the toxicity pov so it’s not a FFF lovers’ statement. And I was not talking about the end result, which can have most of its toxicity cured away in the process I am talking about raw materials, handling, disposing, air filtration, washing,etc etc. If you are enamored with SLA very well, nothing against it, it’s your call I just want people to research better what are they dreaming to get into.
Honestly, you are probably exposed to more carcinogens in 5 minutes of grilling a steak than the exposure you would get from these resins over a year. Have you ever used 5 minute epoxy? Fiberglass resin? Enamel paint? What exactly is your definition of “toxicity”? Yes, if the raw resin gets on your skin, it is an irritant. Yes, you wear gloves to prevent this. Yes, you clean the part with alcohol. No, you don’t want to pour it down the sink. You can set your cleaning bin outside where the alcohol will evaporate and any remaining resin will harden by the UV light of the sun. This is no different than the recommended practice for disposing of a gallon of house paint. You let it harden and then it can go to the landfill. I work with electronics for a living. Believe me, I know the solder fumes I’ve been breathing for 40 years are far worse than these resins.
that’s exactly why you don’t want to stack’em up … the sensible approach is to limit the exposure as much as you can. Not to give in and say “you’ll anyway get exposure from X, Y, Z, …etc, etc”. That is my approach at least and I feel obliged to warn people when I get a chance because most of the ones I know say the same thing that you say, as if one can’t choose to get less exposure.
There are ways to properly handle all these chemicals if one can’t live without eing exposed (eg job) but will most people do this? Most FFF users don’t have enclosed printers with a proper extraction mechanism. Yes it’s their fault you will say but humanity is not about asigning blame, is to care, to educate, etc.
My 2c.