Questions about z axis

I’m planning on building one of these regardless of if it will double as a viable 3d printer as well, but was wondering what the tallest z height is that I can attain using the mpcnc as a 3d printer.

I’m basically gutting a self built 3d printer for all of the electronics in order to build one if these and was wondering if I would be able to EASILY incorporate my hotend, extruder, and heated bed. I’m planning on building a 24"x 24" and was wondering if a 24" z height would be out of the question?

As long as the steppers are over 42oz/in, preferably larger. This is on the parts page.

 

Maybe, what hotend and extruder, your current heated bed is 24"x24"? Anything can be made to work.

 

It could work but it would so far from ideal it is a waste of time. I have specs on several pages, do you fully understand the time and filament requirements of such a large build area? Bowden? Large nozzle, heater, and cooling, large bed, leveling. 200x200mm is simple, 600x600 is more difficult, the heated bed alone will be difficult to heat and be planer enough to use. There are tons of threads in here of uses with large printers and the things they have done to make them work.

 

The answer to all your questions is yes, but it is also so general I think you should look around some more. I wouldn’t build it more than 8", 12" absolute max.

 

 

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Yeah, power alone makes that big of a heated bed an issue. The standard 200x200 bed has an 11A power draw, a 600x600 would be 99A. Even if you have a 100% efficient power supply that would be getting close to the whole output of a standard household circuit. Best would probably be a mains powered heater on it’s own circuit and a big SSR driving it.

Maybe not a whole household: https://www.aliexpress.com/item/600x600-MM-230V-2000W-Silicone-Rubber-Heated-Pad-With-adhesive-100K-Thermistor-heater-Mat-Diesel-Heater/32866881676.html?spm=2114.search0104.3.1.42383d14vSdCoj&ws_ab_test=searchweb0_0,searchweb201602_2_10320_10152_10151_10065_10321_10344_10068_10342_10547_10343_10322_10340_10548_10341_10193_10696_10194_10084_10083_10618_10304_10307_10820_10821_10302_10059_100031_10319_10103_10624_10623_10622_10621_10620,searchweb201603_11,ppcSwitch_3&algo_expid=cc43e6d0-5e45-4883-908f-95c6b7473290-0&algo_pvid=cc43e6d0-5e45-4883-908f-95c6b7473290&priceBeautifyAB=0

Not saying this makes sense…

For the extruder/hotend questions: I don’t think build size of your machine matters. The toolmounts stay the same no matter if your rails are 10" or 24" length.

I suppose it depends on where in the world you are. In the USA typical household circuits are 15A at 110V, or 1650W. That one is 2000W, but running at 230V, so only about 9A. What are the typical amp ratings for a household circuit running at 230V?

The biggest 220 outlet for residential is 50amps, after that, they’re hardwired. Something like that would be for a higher end electric oven.

Yeah, but the 230V setups are 50Hz and elsewhere in the world than North America.

In Norway the norm for the circuits are 10 and 15amps at 230V

 

Wouldn’t it be 99A at 24v so only around 10a at 240v?