--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
On Fri, May 19, 2017 at 12:42 AM, Vincent <[email protected]> wrote: > Hi Luke, > > I saw your recent update on crowdsupply. Could you please list the > specific requirements you need for 3d printing? Otherwise it will be > difficult to help you out. > > Ideally, you can provide us with the following data: > - maximum print dimension in width X length (e.g., 200x200mm) 200x200 is enough to print the 260mm-long edge parts *across the diagonal*. you get about a 4mm gap all the way round so it *really does* need a printer that is *genuinely* 200x200. > - minimum wall thickness (e.g., 1mm) yeah it's about 1mm, maybe 1.2mm. a couple of places are 0.7mm which cura 15.04 _will_ still do... but only with a 0.4mm nozzle. a 0.5 will be "optimised out". > - smallest detail (e.g., 0.3mm) 0.3mm sounds about right > Also, having a single component of the casework as a sample print could > be helpful (meaning: if this prints OK, we would expect that all the > other components are of equal quality). http://hands.com/~lkcl/eoma/kde_tablet/3dcase/ then go to the stl directory. i recoomend trying base_back.stl, base_end.stl and back_base_hinge.stl with orientation *AS-IS*. do NOT alter their orientation. then try fitting all 3 together. do NOT add "internal support" to any except back_base_hinge.stl. raft is not necessary. brim *might* be necessary (try it). > I value your quality-first approach and do not want to settle for less. :) > We have a couple of decent 3dprinting suppliers in Germany which I did > use in the past (though, for tiny objects only). I could offer to get > quotes from them and/or do some negotiating. Also, check their quality > based on the sample component to print (which I could also send to you). appreciated > Another approach could be to distribute the load: There are many > hacker/maker spaces around the world. Many of them do have 3d printers > and offer printing at much cheaper rates. I do have good friends at a > maker space with an Ultimaker 2+ and most of the time the printer is > idle. Since they are a registered voluntary association, they are always > interested in receiving minor donations in return for services. > > I could ask them to print a couple of cases? see what they say. > Another idea: > How about buying 10 Ultimaker+ and selling them via crowdsupply as part > of the EOMA68 campaign (with a reasonable deduction, due to the reason > being used)? yeahhhh that's $USD 12,000 just on 3D printers. and on 3D printers that can only do around 150mm/sec. see message to neil: we really do need to be smarter about the selection criteria. particularly given that the budget's not going to be enough. i also have to get smart about this, hence why i'm looking to do a second campaign, and this time increase the prices (and volumes) so as to bring in more cash in order to complete all the pledges, *but* make designs that use the same PCBs *as the first campaign*, thus reducing overall the manufacturing cost for *both* campaigns. > You did address PLA a couple of times. How about the resin option? Any > specifics? How many people ordered it? not many. i honestly haven't investigated resin fully, yet. i do know it'll come out great, but it's lower on the priority list. l. _______________________________________________ arm-netbook mailing list [email protected] http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook Send large attachments to [email protected]
