:: a question of scaling ::

is there a overiding function on a firmware to affect over all printing scale?

if say you calibrated a printer to be X steps per mm travel. is there an additional function on the firmware to quickly change the master scaling of the print to 2x, 1.5x etc ?

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isnt that normally done in the slicer?

lets say the gcode is already done to scale, and its not a sliced item (like PCB milling)

do we change the steps/mm for XYZ?

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__my mixed bag blog || aka --> [http] || ___ so 3D printing is everywhere ... dont worry, hospitals can now 3Dprint body parts, they will charge you $1million excluding surgical fees ... you will die paying your debts. thats their aim ___ if every patent expires tomorrow, everybody will surely get a 3dprinter and make EVERYTHING ! ____ there is a "DIY-DTG" t shirt printing forum, you can mod an EPSON printer to PRINT like a pro. ___ CNCzone? overly commercialized it seems ___ my country? they will be taxing you for every cm of road you use and track you to your grave using GPS and its government authorized, now they will fire all the traffic wardens instead.___ EEVBLOG? there is only 1 way to do things --> take it apart like a pro

As you scale, you need to worry about extrusion width (or in the case of milling, the cutter width). It would also have to scale accordingly.

so, then it is possible to carry out a scaling adjustment at hardware level? yes?

jbernardis Wrote:
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> As you scale, you need to worry about extrusion
> width (or in the case of milling, the cutter
> width). It would also have to scale accordingly.

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______________________________________
__my mixed bag blog || aka --> [http] || ___ so 3D printing is everywhere ... dont worry, hospitals can now 3Dprint body parts, they will charge you $1million excluding surgical fees ... you will die paying your debts. thats their aim ___ if every patent expires tomorrow, everybody will surely get a 3dprinter and make EVERYTHING ! ____ there is a "DIY-DTG" t shirt printing forum, you can mod an EPSON printer to PRINT like a pro. ___ CNCzone? overly commercialized it seems ___ my country? they will be taxing you for every cm of road you use and track you to your grave using GPS and its government authorized, now they will fire all the traffic wardens instead.___ EEVBLOG? there is only 1 way to do things --> take it apart like a pro

No.

If you are extruding a width of .5mm, a 1mm wall would be two nozzle passes to fill, If scaled to 2mm, your gcode would still only contain the original two passes to fill at 1mm. So scaled by hardware to 2mm would now have a 1mm gap between the two passes.

Extrusion width would increase a bit with extruder scaling but you couldn't push enough filament to double the width and height.

Edited 3 time(s). Last edit at 03/26/2013 11:43AM by Dirty Steve.

mmm ok i get wad u mean.

unless, the nozzle also is scaled up. that would be interesting to see

Dirty Steve Wrote:
-------------------------------------------------------
> No.
>
> If you are extruding a width of .5mm, a 1mm wall
> would be two nozzle passes to fill, If scaled to
> 2mm, your gcode would still only contain the
> original two passes to fill at 1mm. So scaled by
> hardware to 2mm would now have a 1mm gap between
> the two passes.
>
> Extrusion width would increase a bit with extruder
> scaling but you couldn't push enough filament to
> double the width and height.

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______________________________________
__my mixed bag blog || aka --> [http] || ___ so 3D printing is everywhere ... dont worry, hospitals can now 3Dprint body parts, they will charge you $1million excluding surgical fees ... you will die paying your debts. thats their aim ___ if every patent expires tomorrow, everybody will surely get a 3dprinter and make EVERYTHING ! ____ there is a "DIY-DTG" t shirt printing forum, you can mod an EPSON printer to PRINT like a pro. ___ CNCzone? overly commercialized it seems ___ my country? they will be taxing you for every cm of road you use and track you to your grave using GPS and its government authorized, now they will fire all the traffic wardens instead.___ EEVBLOG? there is only 1 way to do things --> take it apart like a pro