I'll edit this as & when.
Machine felted dreads
Ok, so first of all you'll need some roving:

TEAR the roving, don't cut it to the length you need:

Then split it to your desired thickness (For these, I'm doing 3, the bit on the right is to show roving before splitting)

Palmroll (dry...no need for water just yet)

TA-Daaaaaaaaaaa! (Next to an un-rolled bit)

Close up of the ends:

I then fold em, so you've got your DE & then stuff em into a pillow case - which usually causes them to fold again:

Knot your case up, secure it with a bobble of whatever:

Put them in the wash (jus thought I'd show the setting I use):

That's a wool 30. BUT I do know that everyone's machine will vary. I've tried different settings & depending on the type of dread I'm making depends on if I use the cold wash, or a very quick 40 degree wash.
I CANNOT STRESS HOW MUCH THIS WILL BE TRIAL & ERROR!!!!
I've ruined dreads in the past by putting them in on a wash that was too hot.
When they come out of the wash, they look a bit weird

Sometimes the ends felt together, but it easy enough to gently prise them apart.

And then lay them out & wait for them to dry.....& do it again!!!

Harlies
Simples:
Roving

if you half the roving normally, half it again (so into quarters) & then loop em around each other


palm roll

Machine as normal....
I'll add more pics of anything else you'd like me to show, I'll do that too, or answer questions etc.