3D Printing Group

Perhaps a MakerBot or a Formlabs machine.

It all depends on what you want to print, size quality, ease of use nad your budget. There are a lot of 200x200mm printers about, some are kits others are plug and play.

I like my core XY.

tronxy xs5 built from kit and universally upgrade-able.

bought mine from gearbest

https://www.amazon.in/WOL-3D-Creality-Assemble-Premium/dp/B07D218NX3/ref=sxin_8_lp-trr-1-eu_98943c3ec73ba3856998d821a888dac044eb6107?crid=3OR0PIBKGG8G6&cv_ct_cx=3d+printer&dchild=1&keywords=3d+printer&pd_rd_i=B07D218NX3&pd_rd_r=0fd3b5a9-0544-44e9-b02d-ea9d8e6999ae&pd_rd_w=PWlv9&pd_rd_wg=WEMy6&pf_rd_p=14d8d20f-2019-4249-9259-ab8405daf368&pf_rd_r=XY3DB6S5TNP5WN7JM4VG&qid=1594824742&sprefix=3d+prin%2Caps%2C443&sr=1-1-73b378b6-230c-4fda-930d-f31261f038af

For FDM, I would suggest a Lulzbot. Either the Workhorse or Mini depending on the size of prints you expect to use.

For resin, I would look at Formlabs.

The professional units are all enclosed (patent soon to run out) so that temperature can be control ABS shrinkage problems are eliminated if the temperature in the chamber is at the glass transition temperature or there about. Abs need support which can be ABS or with a two head device the second material. Professional system use a dissolving support material. PLA doesn't need an enclosure or support all the time. The education usage can be with PLA the research may be a higher temperature plastic.

my suggestion is to build your own, and there is plenty of help available here

Inlcuding from some that already comented on your thread.

When you build your own one and you need a tight tolerances under +/- 0,2mm. Don´t get a belt drive inducement for the x/y/z axis.

For a tight tolerance neer by 0,02 /0,05mm use for the axis recirculating ballscrew linear portal.

By low price Printers (like Ultimaker 3 or 5) you get a better outcome when you change die printing plate against a planar dressed to size 4mm quartz glass.

You like to print steel parts. You need a Laser-Sinter-printer. Professionell Metall-3D-Printerr from EOS or StrataSys prizes from 100.000 up to 500.000 Euro

For that you have to ask yourself, if you want your hobby to be "the 3D printer" or designing and using 3D printed parts.

Home-built printers you tend to spend a lot of time working on the printer, adjusting, calibrating, fixing it. With more expensive off-the-shelf printers there's a lot less of that and you get to spend more time designing the parts and using them instead of making the printed part.

that is how you get to know your machine and make yourself able to design fot it's capacities, off the shelf ones and little to no upgradable without voiding the guarantee, have excellent but limited capacities and if you want to go a different way, you actually have to buy yourself another machine.

DIY instead allows you to change iteration as many times as you see fit.

Trust mefor I keep experimenting a lot with my machines, air cooled volcano, super volcano, chimera, diamond tool, nd now I am building a water cooled chimera and a water cooled diamond too, hoping to go 700C and print with aluminium, next step is another idea I have to go 2000C and print with most metals.

Do that with a machine off the shelf if you can.

The technology is old enough that it should work just as well as a regular printer. You shouldn't need to mess with it to print what you need. Having to mess with it to make it do as described should be a minus to the company that made it and not a positive to the person who uses it. Tech moves real fast these days. We shouldn't be jumping at the opportunity to be happy with and fix defective products.

I don't fix defective product, I create new technologies.

If you're building and fixing a product to make it useable, you're fixing defective products. If FDM printing came out a couple years ago it would be different, but this technology is over a decade old... building your own and tweaking is fixing a defective product. There isn't a discussion on this.

The discussion starts from your asumption that everything to be invented it has being invented and there is nothing new to be invented in FDM.

Big fallacy.

look at the dynamo one pro - big workspace and fast

Emil, you have lofty goals and that is way cool, but not all of us need that type of machine... PS for Aluminum you are going to want an inert gas chamber (probably).... that is a really funny material.... Best of Luck

perhaps a fine wire and CNC Tig tip for hot end?

I personally like the Fusion 3 F410 I have at work.

it can handle anything up to 300c extrusion temp. and all manner of fiber reinforced filaments. The company is based in the US and has a two year warranty on their machine, with a certified materials list that makes me drool. I don't want to have to fiddle with settings and so far the only thing I've needed to print that was not on the certified list is PP

and it printed it rather well with some modifications to a CF-PETG profile.

Cost is around 5K USD, but you do get what you pay for...

I got the same performances from a USD 250 FLSun that I modified, cute? Yep.

Now I am modifying again to go 450C.

And any metal needs inert gas, or lack of any gas (vaccum), by definition.