3DP Unlimited vs Raise 3D Pro2 Plus

[curious aardvark]

3dp are seriously engineered machines.
Plus a great company if you had any problem I reckon they'd be pretty good at helping even for a second hand machine.
You can mount pretty large spools of filament so as long as you know how much a print wil use and how much is left on the spool - then you should never run out.
That actually goes for any one using filament rolls :-)

warping is pretty much not an issue these days. There are so many really good printbed coatings you can use.
Just started trialing a new one (for me) last night.
So far, really impressed.
http://dimafix.com/dimafix-pen/
I picked up a couple of the pens at tct in september.
Finally got around to trying it out last night.
Very impressed. Upped my first layer speed from 10mms to 40mms with no adverse effects. Put 3 layers on the bed and I can't see any visible loss of liquid in the tube/pen. So a little goes a long way.
So far done aboyt 5 prints on it - most the same thing and in the same place. No loss of grip so far.
That would be ideal for something like the 3dp.
More importantly than the filament gripping is that it also release the prints pretty easily too.
The other stuff I've been trying recently is a sticky back sheet I got from lankeda.com.
I think it's buildtak. Things stick amazingl;y well - but you have to be very careful with your nozzle distance from the plate as they can stick too well - and buildtak doesn't let go easily.
Dimafix also comes in an aerosol can that might suit the 3dp better.

3dp themselves always swore that they used beer on the printbed.
First year they got me, and I tried it. It does not work :-)
Lord knows how many people they've fooled with that over the years. :-)

For a large bed, out of everything I've tried in the last 6 years (and that's everything from bluetape to printbite - even beer) I'd currently go with the dimafix.

And yes the 3dp will print right to the edge. The gantry runs along the outside of the machine so the printheads can get right into the corners and edges.

Another machine to look at - cheaper again but with a larger volume than the raise is the formbot t-rex2 + : http://www.formbot3d.com/formbot-lar...ize_p0018.html

The idex printheads are a great feature. In fact it's just chock full of great features.

It really depends whether you want more width or more height. Formbot do an extended t-rex with 700mm print height.