Lame dah tak berblog so harini nak update blog skit. Macam2 projek sekarang, bz sangat, nak apply geran tu, nak apply geran ni...
Nak buat quadcopter, handrobot dan macam2 la. Alhamdulillah 3D printer pon dah ok, takde masalah besar dan boleh dah nak print..
ni lah hasil mahsul 3d printer tersebut tersebut tapi quality masih jauh dari perfect. So tak pasti sekarang nih same ade masalah extruder ataupon masalah material so sekarang nak tukar material baru dan/atau nak tukar extrude.
Bab extruder nih ade macam2 jenis, ade BOWDEN extruder, WADE extruder dan mcm2 lagi. Skang ni nak belajar BOWDEN extruder sebab sat gi nak pakai untuk printer baru. So ini yang dapat aku cari...
http://start3dprinting.com/2013/07/what-is-a-bowden-extruder/
The direct extruder is more common, and it’s easier to explain the Bowden variant in terms of its differences. Let’s start with a diagram of a direct extruder (from the RepRap wiki):
The diagram above illustrates the workings of a typical, DIY extruder. A geared motor pulls filament, driving it into the hot-end for melting. The feature of note is that the extruder motor is directly above the hot-end (or at least very close.) A direct extruder will often look something like this:
The Bowden Extruder
For a Bowden extruder, we modify the diagram to be more like this:
…and in practice, you’ll see something like this:
…with the tube connected to the hot-end. The over-all look is like this (a Bowden-modified Printerbot Jr):
Why go Bowden?
There are pros and cons to both configurations, but the main reason people use a Bowden style extruder is to reduce the weight of the moving components. With the heavy stepper motor off in a fixed position, the hot-end can be moved with less force, generally allowing for faster speeds.
Where the name “Bowden” comes from
The Bowden extruder gets it’s name from its similarities to the Bowden cable:
(Image source wikipedia)
If you’re familiar with a mechanical throttle cable or a wire bicycle brake cable, these are Bowden cables. Bowden cables are used to transfer mechanical action from one point to another. (Think brake-lever to brake-caliper.) With a 3D printer, a Bowden extruder uses its tube to guide a filament wire, transferring the force of the extruder motor into pressure in the hot-end. However, since the filament is a consumable, the mechanics aren’t quite the same. Unfortunately, I don’t know of a better name, and “Bowden” has traction, so that’s what we’re stuck with. Either way, you now know what it is.
(copy and pasted from the link above)
Cam kelakar je camane BOWDEN extruder ni dapat name
