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As I was doing a simple 2 colour print...

The amount of waste printing the box sat on the keyboard. This is a simple 2 colour print, so only changes filament one per layer (that has 2 colours on if)

Melt it down and use it again. And warn the printer you're going to do that every time until it eats all of it's dinner 

nothing obviously faulty standing out so i swapped the main 40 pin up chip.a heat gun with a shroud managed this ok .fault still remained so added a "reset' button to wake up the processor when it faults .this works every time it fails to power on so i can live with this .
put the reset button on the facia to short the control pin to gnd .works great and looks factory too !
so all problems solved realy .thanks to all for helping . cheers.

As I was doing a simple 2 colour print...

The amount of waste printing the box sat on the keyboard. This is a simple 2 colour print, so only changes filament one per layer (that has 2 colours on if)

Derek Martin 92 actor ,played many parts usually a cop or a villain

Because you then suddenly hear the sound of your own voice and realise you dont sound even remotely like the lead singer of the band you were listening to. 
Not that I have any experience of that type of thing. 

If God had intended us to p*ss around trying to talk to software, he wouldn't have given us keyboards and mice.

Don't try to tell me you don't use the voice commands on your car

The XE, well certainly the LoLine fitted to her poverty spec one, doesn't appear to have a voice command to cancel the satnag.  That is REALLY annoying, as means pissing around on the touchscreen trying to find the option.

The only time I use voice command is when I tell it to STFU, if it suddenly decides to interrupt a conversation that is none of it's business.

As a rule, I tend to have what JLR refer to as Voice Guidance off and really on the dash display for navigation, until the last half mile or so.  I get most annoyed when it interrupts a bit of Planet Rock, and I'm joining in being the lead singer

Oh, and CFS needs reels to be a set size - read specs.  And ideally plastic spools, although it can work with cardboard, as long as the edges are good.

TBH it's not a *need* at all. I'm certain that with a new hot end fan (to cure an annoying buzz on startup that goes away after c1min) and some fettling the ender 3 would soldier on no issue, its definitely more of a want. So my *want* factors

Want always = NEED


- not fart-arsing around with a USB/micro SD card any more when I want to print (biggest want)
Virtually all have remote printing now, either via cloud or via LAN, or both.  Creality Flagship series do both.  I do personally seem to get a lot of occasions when the printer seems offline on the LAN, but still online on Cloud, which I think is due to the Wifi briefly disconnecting.  I keep meaning to try a cat5 instead, as I do live in a very, very hostile WiFi area.

- filament enclosure so that I can be lazy during machine down time and not bother removing and storing reels of filament properly.
CFS can do that, *BUT* it's dried via desiccant. I use desiccant crystal that can be reactivated, which I have to pop them in the microwave every week, or more often if I open the CF too regularly to swap spools.

- enclosure to reduce noise - it shares swmbo's office and it's annoying enough to her that I don't print while she's working - which definitely slows production
K1 Max was noisy, I think the way the idea fan was mounting on a perspex side. K2 is not silent, but seems les intrusive *except* nozzle wiping and CFS feed/retract.  Mine is in the box room office I work from (as was the K1, the brilliantly named Artillery Sidewinder X1, and the very noisy Anet)

- enclosure to stabilize temps - we don't heat that room at night so ambient temps can drop to mid-to-low teens this time of year which I wonder if could be affecting reliability
Enclosures also help with other filaments such as ABS. My office stays fairly warm due to all the other shite running, so even recently, hasn't gone under 15C.  K1 has fan to cool the chamber, K2 has an active heater as well.  In both cases, you will need to print a lid riser, and I'd recommend one with vents that can be opened and closed, leaving open for long PLA prints, esp on warm days.

- direct drive and enclosure to allow me to confidently venture beyond pla. Not sure what for yet, but I'm sure ideas will present themselves, just like they did when I got the ender 3.


- better quality to allow me to print scale models - very low level want as I suspect the money spent to improve quality would more than buy a cheapish resin printer that would give vastly superior results.
If you are talking about models to print and paint and display, resin is definitely the way to go.

- ability to 'hot swap' reels of filament when one runs out - an annoyance on larger prints as the pause and swap method on the ender 3 is seriously hot and miss and can easily wreck a print.
CFS does this automatically *IF* the filament is the identical (brand, model and colour). Upon installing a reel, you tell the printer what filament it is and its colour. Or for RFID filaments, it reads it itself. In both cases, it can only do this *BEFORE* a print is started, not during.  I use this all the time - if a spool is looking low, I chuck in another, so it can use up the empty one first, then change to the full one.

- multi filament printing - very very low level want. My son will think it's the coolest thing in the world for about 90s before carrying on with his day.
Do some research on K2 pooping, and the amount it generates.  You will need to print either a poop bin or poop chute with bin.  Plenty of models available, or design yourself.  Be aware that as it changes filament, that causes a CF retraction and CFS feed (obviously), and several nozzle wipes (number seems to depend on how big a colour change), which do make a lot of noise.

If God had intended us to p*ss around trying to talk to software, he wouldn't have given us keyboards and mice.

Don't try to tell me you don't use the voice commands on your car

The XE, well certainly the LoLine fitted to her poverty spec one, doesn't appear to have a voice command to cancel the satnag.  That is REALLY annoying, as means pissing around on the touchscreen trying to find the option.

The only time I use voice command is when I tell it to STFU, if it suddenly decides to interrupt a conversation that is none of it's business.

And according to the ffluid interface, it's now done 6592.80 m of filament. Unclear if that's the incoming 1.75mm filament or the distance the head has moved when extruding at 0.4mm.  I'll do a test print and try to work it out

That appears to be incoming 1.75mm, rather than the 0.4mm extruded.  Which seems about right, as I've probably run 20 1kg reels through it, and its around 325-350m per spool....