1 Topic by nobias

  • nobias
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  • Registered: 2014-12-07
  • Posts: 17

Topic: From 1.75mm to 3mm Modification on my SD3

I have a new SD3 and want to explore changing the filament size to 3mm.

I have previously purchased a Hot-end and An extruder assembly (with heaters, etc). It looks like the mount for the hot-end is similar diameter to the one already on the extruder that is on the SD3 I have. And without disassembling the extruder on the printer I cant tell if the one i have will have matching mounting holes.

has anyone else done a similar thing? What I'm needing to know is are there any roadblocks to doing this from someone who has actually done it at some point?

My hot-end is longer than the one on there now (and heftier with much better insulation), but I assume that's not an issue since that's just a matter for correctly telling the software what the zero height will be with the new head on the machine.

2 Reply by satman49

  • satman49
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  • From: virginia
  • Registered: 2012-12-28
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Re: From 1.75mm to 3mm Modification on my SD3

You said New sd3? All stock hardware? What hot end did you purchase? I have upgraded my SD3 to the e3d v6 hot end.You will need to print a mount for it.As to the difference between  a 1.75 and 3 mm the mounts are the same.

SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.

3 Reply by elmoret

  • elmoret
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  • Registered: 2012-10-11
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Re: From 1.75mm to 3mm Modification on my SD3

Gonna be a real pain, as you cannot direct drive 3mm filament. You need a geared stepper, or printed gears.

Filastruder - the robust, inexpensive filament extruder
E3Dv6 All Metal Hotend - the premier 3D printing hotend