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Re: How do we both encourage RepRap mutations and stay focussed? - 13 years ago
sarel.wagner Wrote: ------------------------------------------------------- > @Rob, in general that is the idea to get a > standard printer bed size range/b], something like 4" > 6" 10" class for example (100mm, 150mm 250mm) and > whatever the largest size cube is the printer can > print will determine its class. The cube (and it > does not have to be printed but can be for >by sarel.wagner - Developers
Re: How do we both encourage RepRap mutations and stay focussed? - 14 years ago
I love open hardware and software! Your opinion is just that, your opinion, after all you entitled to that. On to the build platform or printer bed again. If we look at the current crop of printers we can see that a few printer bed sizes is enough to cover the range. We can have a square bed or a rectangular bed. Square beds to satisfy most requirements: 150mm and 225cm square surface areaby sarel.wagner - Developers
Re: How do we both encourage RepRap mutations and stay focussed? - 14 years ago
If we now look at this table, we can deduce from that we need a few standard table sizes and those will cover most if not all the printers in the list. 5 square table sizes will be required. 150mm, 200mm, 250mm, 300mm, 400mm Only one printer needs a table of 300*460mm. Regards in progressby sarel.wagner - Developers
Re: How do we both encourage RepRap mutations and stay focussed? - 14 years ago
Attached is the classification I have done on the current printers as listed by 3ders here: List of printers on 3ders My list is sorted according the biggest cube the printer can print, it is not the same order as on the 3ders site. EDIT: The Cube size is in CC and the ratio is how many cubes of that size the printer can print (Cube : Printenvelope volume) Please comment if you like. Rgrds iby sarel.wagner - Developers
Re: How do we both encourage RepRap mutations and stay focussed? - 14 years ago
@Rob, in general that is the idea to get a standard printer bed size range, something like 4" 6" 10" class for example (100mm, 150mm 250mm) and whatever the largest size cube is the printer can print will determine its class. The cube (and it does not have to be printed but can be for verification purposes) does not restrict the table size, you may have a table that is 150 x 250mm if you like. Doby sarel.wagner - Developers
Re: How do we both encourage RepRap mutations and stay focussed? - 14 years ago
Bobc, thank you for sharing your opinion with us, twice. Do you have any other contribution to make apart from that? EDIT: Just to make sure ya did not miss this part here it is again: Here is one definition of standard: "something considered by an authority or by general consent as a basis of comparison" Rgrds in progressby sarel.wagner - Developers
Re: How do we both encourage RepRap mutations and stay focussed? - 14 years ago
Classes of printers. The print bed basically defines the printer. Surely we can agree that a printer with a bed of 10x10cm is different to one with a 20x20cm bed? All the rest of the mechanicals making up this printer will be different as the 20cm printers X and Y axis must be twice as long as the 10cm one (no matter the printer Axis configuration, XY Head and Z Bed or otherwise). A new printerby sarel.wagner - Developers
Re: How do we both encourage RepRap mutations and stay focussed? - 14 years ago
One of the issues is its not a single number. How do you compare 150x150x150 to another printer of 160X160x124 or even worse to one 6"x6"x 5"? A ratio is a single number and Metric or Imperial does not matter. I know we say Metric is the standard, but many people still work in Imperial and specifications are in inches many a time. Its not the only problem, but printing a cube of 150mm or 4" is eby sarel.wagner - Developers
Re: How do we both encourage RepRap mutations and stay focussed? - 14 years ago
Thank you for taking the time to consider my ideas Zeta. What I am talking about is not a standard at all in the sense that the system needs to adhere to a standard. A cube can hardly define a 3D printer standard. Maybe I should start every post with this: Here is one definition of standard: "something considered by an authority or by general consent as a basis of comparison" The cube only allowsby sarel.wagner - Developers
Re: How do we both encourage RepRap mutations and stay focussed? - 14 years ago
Hi Bobc, Its not about printing cubes at all, it is about improving 3D printing and printers. What would be pointless? Why would standards be pointless? As I was explaining earlier, you are welcome to ignore the standards, no need for you to follow them. I am using Metric as well as Imperial as some is people reading this may not be on the metric system. I use both. Please see my refrence eaby sarel.wagner - Developers
Re: How do we both encourage RepRap mutations and stay focussed? - 14 years ago
Lets take X of 12" Y of 6" and Z of 7" and that give you a volume of 504 ci but the biggest CUBE would be 6" for a volume of 216 ci. Its a 6" class printer but that does not favour nor restrict the printer from printing a volume more than twice as big, you have to agree? It does not prevent you as a designer to make any of these choices, nor building it like that. Will it be compatible with otheby sarel.wagner - Developers
Re: How do we both encourage RepRap mutations and stay focussed? - 14 years ago
Polygonhell Wrote: ------------------------------------------------------- > The problem with standards like that is they do > not match the typical print a plate of parts usage > pattern, why classify by the smallest dimension > when for most prints X and Y are more significant. > > You start classifying like that (or in any > recognized way) and you'll start to see > gamby sarel.wagner - Developers
Re: How do we both encourage RepRap mutations and stay focussed? - 14 years ago
If we take 2D printers, by all commercial vendors, the printing sizes are well defined, you can put A4 or Letter or Legal sized paper in any one and they can print on it. Same is not true when we look at 3D printers. The build envelope and build volume is all over the place. The heated print bed size as far as I can see is not the same dimensions for different kits in the same category (build enby sarel.wagner - Developers
Re: How do we both encourage RepRap mutations and stay focussed? - 14 years ago
Surely the rest of the community and the developers, commercial or not, can see the benefits of modularity or having a few common build platform sizes or making the head carrige so its modular and you can use any hot end on there by just bolting it on by having a single bolt hole pattern etc? Rgrdsby sarel.wagner - Developers
Re: How do we both encourage RepRap mutations and stay focussed? - 14 years ago
Hello all, I am new here. This seems awfully quiet for such an important topic? Are we talking about modularity, ie. the mechanicals being modular to enable a printer to be build from modular parts that will fit no matter where it was made? If we have a modular control system, any control system will work if it conforms to the interface standard and the system does the same thing in more or lessby sarel.wagner - Developers