Favorite Upgrades & Add ons

I've had my M200 for about 4 years now, but I'm just starting to use it again after an 18 month break, and really I haven't been very active on the forums since 2015. 

It seems like since that time, lots of upgrades, add-ons, hacks, etc. have been come up with and while I'm still digging through the forums, I'd thought I'd post here to ask this:

What are your favorite Upgrades, Add-ons, etc. that you've done to your M200? Especially, what would you consider to be "essential"? I'm hoping to hear about "official" upgrades (should I use the V2 print bed?) as well as "unofficial" ones (do I need to add a 2nd fan below the extruder?).

Thanks!

I'll vote yes for both the V2 print head and the 2nd fan below the extruder.  I'd also suggest stocking up on Noctua fans to replace your Zortrax OEM fans as they fail, adding side covers, stocking up on a spare display unit (mine just failed) as well as the flat ribbon cable that attaches to the print head.  There's also a member here who offers add-ons that let you control temperature, adjust bed off-set, check for "out of filament" conditions, and adjust temperature setting.  Those have all proved useful to me.

Regarding replacement of the print head stock fan by a Noctua:

a ) I've made experiments -> the noctua makes less airflow; but if you add a 2nd one on the opposide position that would be ok.

b ) The original fan gets powered by 24VDC PWM and it looks like working durable, even if it's a 12V type; but it's unknown how long the Noctua will run with that.

Regarding replacement of the print head stock fan by a Noctua:

a ) I've made experiments -> the noctua makes less airflow; but if you add a 2nd one on the opposide position that would be ok.

b ) The original fan gets powered by 24VDC PWM and it looks like working durable, even if it's a 12V type; but it's unknown how long the Noctua will run with that.

The OEM fan is 12V, too :) I've been running 4 Noctuas for years and none have failed.

The OEM fan is 12V, too :) I've been running 4 Noctuas for years and none have failed.

I've had a couple of Noctua fans fail, possibly because I was doing long prints with 100% fan set in ZSuite.  No problems since with the fan usually set to Auto now.

The OEM fan is 12V, too :) I've been running 4 Noctuas for years and none have failed.

Yepp, that's what I've tried to say with "original fan".

"OEM" makes it more clear :)

But I will never understand, why Z's decision was 24 PWM instead of 12V.

Strange ...