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In reply to: Marking new products

helper
09/04/2017 at 07:12
0

Nice, great idea!

helper
08/04/2017 at 11:49
0

helper
07/04/2017 at 21:34
2

I was thinking on this to, and the use of an old washing mashine. Like the one on the images, this type you can remove and use the motor, electronic and the drum.

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helper
06/04/2017 at 02:56
0

Dave´s pipe is probably mild steel, the thermo-plastic extruder we use where I work use stainless I think. It should not be a problem using mild steel, thou there could be corrosion if left for a longer period.

The wall thickness one Dave´s pipe is 4mm, (OD 34 – ID 26 = 8 / 2 (two walls) = 4mm)

If you increase the size of the pipe, you should increase the wall thickness also, becose if you use a proper extrusion screw you will have higher pressure.

But with auger drill bits you should be good with 4mm wall thickness (biggest auger drill bit I have seen is only 34mm)

If you increase the RPM you run the risk of the plastic not heating up sufficiently, and increasing the temperature has the risk of burning the plastic.

You could also make an longer extruder then the plastic has more time to heat up, but then you have to find longer auger drill bit, or if you are skilled you could weld auger drill bits together, but that might be hard becose the screw needs to be straight.

Also the screws do get worn.

Hope this helps anything.

helper
06/04/2017 at 01:50
0

@baas also sent you a message

helper
02/04/2017 at 09:27
0

I guess you are talking about the shredder parts.

When I went to the cutter I used a memorystick(pendrive/flashdrive), and copied the entired 00_laser files folder.

If you downloaded the files kit, you will find the laser file folder.

precious-plastic-kit-master – precious-plastic-kit-master -& 3. Build – Shredder – Blueprints

helper
30/03/2017 at 06:35
0

Shredder blades look like blades/set from a paper/document-shredder?

helper
28/03/2017 at 11:36
3

Good work! Nice upgrade. And good idea with the gear system, I think I will use something like it for my machines, becose its hard to find a geared motor that gives 60-70 rpm cheap here.

In reply to: Extrusion Machine

helper
25/03/2017 at 09:28
0

On the blueprint and the Bill of Material it says that the tube is 34 x 26 (not 28).

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