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Astro-project 3D-printed


Chriske

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Busy working on a big astro (printing) project. It'll be 3.2 meter high, (yep 10'+)
Should be finished Sept 2020.
So that gives me plenty of time to test these 'little' guys... (But first I have to build a printer that goes with it.

Left is a 1.5mm(I have already one in use and works absolutely perfect) nr5 is 2.5mm and far right as comparison is standard 0.4mm nozzle.)

image.jpeg.fc4abd516d4a68cdab4b14b0a90898c0.jpeg

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OMG back to the "pink string" 🤣  I use to make more conventional printers with "pink string" a.k.a. braided fishing line cord with 100lb breaking strain.  Drove me up the wall - kept coming off the drums!  Also, slightly more stretch than GT2 timing belt.  Wore out quite quickly too where it went over pulleys.  Have to say I have looked at the Hang Printer and the cord is quite amazing considering it's only about half a millimetre diameter.

Edit :- Think it's had a bit of an upgrade since I last looked at it.

Edited by Gina
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18 minutes ago, Dr_Ju_ju said:

If you have the space, then you could consider a Hang Printer (https://hangprinter.org/) ……   

Seen it, but I don' believe in that project.
There are to many issues with it.
Most important thing for me is that the perimeters are absolutely perfect. I know many people will react something like :  Nice perimeters with a 2.5mm...? yeah right..!
To me a nice perimeter is one with no issues, ripple, moiré, ghosting, etc... And that is what most printers suffer from, one or more of these. I design my own printers and make them very stiff. Even my smallest printer I have difficulty lifting it up. I dare to say I do print perfect perimeters.
Well, the perimeters printed with my bigger nozzles, yes indeed I can clearly see the layers, but these layers are all consistent, very regular, in fact very nice. There are no issues with the perimeters I print at all. If there were, I throw that part away, change whatever there is to change in the slicer settings to correct and start all over...
Needles to say I wont be printing small and detailed parts with it...😁
Don't think a hang-printer is capable of delivering these regular perimeters.

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I find it very hard to believe a Hang Printer could produce a satisfactory print.  I've had problems with string or belts a metre long let alone several metres!!  A fascinating idea but hardly practical IMV.

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It's a bit strange that someone wants to design such a printer. It must have been a time consuming design/built. Do not misunderstand me, it is quit an achievement and I take my hat of for it. Well done..!
But as I said higher up, I'd rather spend more time in searching to make my prints better looking. That alone is very time consuming, especially with these big nozzles.
 

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Yes, it's certainly complicated.  It also has some serious deficiencies, apart from being very inaccurate.  Still dependent on bed size for X and Y dimensions and a large heated bed is expensive.  Also, I think the X and Y dimensions get smaller as the height increases.  It is most suitable for narrow, tall prints that are smaller at the top.

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