Dan Shirley

Here we go!

Maybe we can add here the https://plastic-hub.github.io/noah/ which is nicer for folks to look at 🙂

How about a golf ball which is a Sphericon or an Oloid? Would be interesting for putting and crazy golf.

I’d really like to know what is the largest diameter of filament which an extruder like this could possibly make in PET. Could it go to 10mm maybe?

If so, what would be the radius it would bend to ? In other words, how big would the spool need to be?

My youtube diet at the moment is rich in GoEngineer http://www.goengineer.com/govideochannel/

@3dseed That sucks… I’m sure it’s related to the legal side of things, probably also connected with their investors. I looked at those ISO codes at the bottom of that page, the first one is about quality control, but the others relate to medical devices and aerospace parts. That’s the type of thing which requires such high standards.

In that…[Read more]

@occupypp Definitely looking forward to seeing an automated injector, this is the dream for PP!
@3dseed (or @3d-seed ?) Maybe you could look into providing an online service of printing in recycled PET via 3dhubs.com? I looks like you already have the capabilities and everything almost in place..

Solar is definitely the way forward, using muscle-power would be a great addition – but why enslave donkeys or horses when you can charge people for a gym membership?

Could be 3/4 inch (=19mm), and 1″ =26mm

Maybe try a 3/4″ keyed shaft with a 3/4″ to 1″ adapter…[Read more]

If you don’t have any machine tools, I suggest http://www.3dhubs.com to have the moulds CNC machined from aluminium. You could use http://www.fiverr.com to find someone to turn the image into a 3D file for the mould, then send that to 3dhubs and they will send you the finished mould. However it might not be cost effective for you do this for such a short run of…[Read more]

There is always space for an alternative forum. As happens in many domains of interest, a new forum will likely not detract from existing efforts and may even feed back constructively to PP. I have seen this happen with other forums, and the new sister forum tends to take on a slightly different character can be a good thing. Personally I would…[Read more]

Nice! the problem with larger blocks of hdpe is they end up with voids inside. This is due gas bubbles and the only way to get rid of them seems to be to squish the plastic with such enormous force that they compress until invisible. You might be able to reduce their size by adding stiff springs to the bolts so that the plate can move down further…[Read more]

@occupypp It sounds like you are working on something similar to what I want to do, the PP extruder would make a great hot end for large scale printing. Would the smoothieboard run nema 34s?

The smoothieboard looks like an awesome piece of kit too

Something like this is just what i’m looking for, so an open source design for a PP 3d printer would be amazing!

These flat splodges might be a way of making bottle caps and milk bottles easier to turn into flakes without a shredder- I’m going to try planing the edge with an electric planer. It would be great to make small, uniform flakes with just a sandwich press and a planer. Can’t test it now though as its the middle of the night.

I did another experiment, this time with the caps on baking paper in the bottom of the air fryer bowl. It kinda worked, and using my half-finished press I was able to make my biggest useless splodge so far at about 200mm diameter. However, I’m not convinced that the air fryer is going to be very useful for my needs. The heating is too uneven and…[Read more]