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I saw the v3 announcement and immediately thought "crap, I'm a dinosaur". But after reading the changes, it seems like all the big changes made assembly easier, and if you already survived assembly (I did, barely) and upgraded to an all metal hotend (same) then your v2 is still comparable. Is this an accurate read? Can I sleep easy without nightmares of v3 people mocking my v2?

hmmm if you have the v6 it's like the same, aside from the no auto calibration in z height. at least... that what i think is from the new v3 package. compared to my v2, thats really the only feature my v2 doesn't have. and due to motors and everything else being on top, wiring is easier, so i think its almost the same, new base construction, for it being top mounted, maybe upgraded e-zstruder and the new all metal hot end, think everything else is almost the same, it has a floating heatbed too i think, that sounds really awesome. but can't say for sure until i get one =P

well, A lot of the v3 upgrades have already been implemented in some versions of the v2... so if you built it recently there might not be a whole lot of changes besides the hotend/structure.


However, I think that vertical supports of the machine made out of glass filled nylon might make the machine more stable because it will not warp over time the way melamine might... pure speculation...

and, without easy mods, having a heat cartridge and thermal fuse over a heating resistor seems like a major upgrade to me... the auto leveling too, but we'll have to see how well that works yet...

While it's a little late, I'm really surprised for the price of the printer, it didn't include the $7 in parts from this video.

https://www.youtube.com/watch?v=xvXKt3xDt4E

We never installed the hotend stock. Ordered these right after ordering the V2.

TwoTone wrote:While it's a little late, I'm really surprised for the price of the printer, it didn't include the $7 in parts from this video.
https://www.youtube.com/watch?v=xvXKt3xDt4E
We never installed the hotend stock. Ordered these right after ordering the V2.

Be careful about what the guy in the video says, it's different than the manual


The stock setup didn't use ceramic heater carts for safety reasons until they perfected the thermal fuse setup that's brand new in the V3. That's why it wasn't in the stock setup. As far as the threaded thermistor goes, it's really a matter of preference. If assembled properly, both solutions perform identically.

I know that the automatic bed leveling will definitely be part of an upgrade kid for the Rostock Max v2, according to someone over at seemecnc if that helps any

You can definitely add auto bed levelling to a v2. The code is in the new unified firmware branch on github, and connecting the accelerometer probe only takes 5 wires. If you're not using the new seemecnc hotend, it takes a little creativity to attach the probe, but isn't that bad. You could mount if above an e3d v6 fairly easy, using a short nylon spacer for instance.

http://imgur.com/oYRztxa

Isnt the concensus that FSR's or IR's are more reliable that accelerometer probing? If i were upgrading a rostock v2 i think i might go those directions over accelerometer probing.... For people that are experts in the matter, i'd wonder what the pro's and cons of each are... i know with IR for example, you have to use a specific bed surface/color....

I haven't seen anything about which is more reliable. The accelerometer measures down to +/- 0.01mm in my testing every time (provided you've cleared the nozzle and bed completely of any filament, any at all throws it off, obviously). And that's using mechanical endstop switches, too.

The biggest thing to me is to see if the code for the accelerometer gets ported to the duet or smoothie (or the archim, if Ultimachine ever releases it).

With the board on top and easy to access, I suspect that upgrading to the archim (or another 32bit board) will be a much easier task on the v3.

kraegar wrote:I haven't seen anything about which is more reliable. The accelerometer measures down to +/- 0.01mm in my testing every time (provided you've cleared the nozzle and bed completely of any filament, any at all throws it off, obviously). And that's using mechanical endstop switches, too.

The biggest thing to me is to see if the code for the accelerometer gets ported to the duet or smoothie (or the archim, if Ultimachine ever releases it).

With the board on top and easy to access, I suspect that upgrading to the archim (or another 32bit board) will be a much easier task on the v3.

I've been using a Radds board which is 32 bit and it uses Repetier firmware so the accelerometer should work. No?

The accelerometer code is ONLY in the branch of repetier from seemecnc, here: https://github.com/seemecnc/Firmware

And I don't think that branch will run on a 32 bit board. The code could probably be ported, but AFAIK, that's the only place it currently exists.

If/when it's on a duet or smoothie, I'll be buying one.