Milling Plastazote LD33 closed cell Foam - Any milling advice?

[Zeeflyboy]

Quick video of milling this stuff:





What I learned in case anyone is interested in having a go:

- When making multi layer stuff, it's much easier to use 3M super77 spray glue to stick the layers together... that is the glue that my research turned up and you can get it in this country for a fair enough price from farnell. While heat welding works, I found it quite tricky to get the right balance between hot enough to get a good weld and not too hot to deform or damage the foam.

- Down cut router bits are definitely the way forward, gives a much cleaner edge.

- Never climb! Conventional milling all the way.... climb gives a truly awful edge finish.

- If you ever get any foam stuck on the bit, hit feed hold immediately and clear it off... it can very quickly give you a fuzzy edge cut.

- Fast feeds are good, but single flute cutter is quite happy whizzing through at around 3,000mm/min or even less which is well within the reach of most machines.

[Boyan Silyavski]

So you have mastered it it seems. I think you need now a dust shoe

[Zeeflyboy]

I do have one actually that i made a while ago - I just need to get the magnets to finish it off and actually use it!

[Boyan Silyavski]

Great, is that the Chinese 70mmx3mm brush? How does it perform? I am thinking o buying from aliexpress to check it