I agree with everyone that printing the flat part down would be the best but you also have to take into account what side is most visible. Even with supports, the side facing down wont be perfect. Unless you plan on sanding and painting or don’t care about it looking perfect, I would print the most visible/most need to be smooth side up. Best way would obviously be to cut it into 2 prints so it can lay flat on the print bed.
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no support and bottom down, i see no issue printing it!
Try using a high setting when creating an stl file for a smoother finish.Use thinner layers, good quality material (no chinese rubbish) HD glas or petg is good and low warping .Fans on full hit & slow it down .You could then possibly get away from using supports. would be a gamble tho. try a scaled down version for a tea light holder first
I would cut it into two parts. Lay flat the bottom. Before cutting it create some intern holes where you can put in some pins to help positioning while gluing. Take extra care of the adjustment of your platform, try to reduce the risk of deformation at the bottom. Use glue (hairspray) at the platform so you don’t have to squeeze the first layer to make it stick. No support. Use good material and print it slow 30 mm/sec and cold 190 grC. Give it time and let it surprise you. Groet Bert
use ‘dimafix’ for bonding to heated beds not glue. i just used it on a 80 hr print on my um2+extended and it never budged
Hello Thvanarkel,
Do you accept cutting or have CNC machining resources ? if yes, just modify the drawing filled the bottom and then cut out after printed. Of course, it is trouble more than just FDM.
Thx
easy3dwork
Odin
How is the 0.15mm a good Z distance?
Do you print Z with 0.75mm layer height?
always make sure it’s related to the layer height you are printing with.
You don’t need to cut the model, just add support at the bottom and it should be fine, br
thats not quite accurate.
the gap between the model and the support on the Z axis is 0.15mm
and the gap between the model and the support on the X and Y axis is 0.75mm
it has nothing to do with layer resolution
It’s just an air gap to help removal of the supports. Increasing it would make the overhang a mess and alter dimensions.
i’m not talking about the gap of the x and y axis.
How can the gap between the model and the support on the Z axis be 0.15mm if for example: you are printing with 0.1mm layer height?
Then the gap will, depending on the firmware, be 0.1mm or 0.2mm. That’s why i’m asking if you are printing with 0.75mm layer height.
It has everything to do with layer resolution.
Thanks everyone, I’ll probably make a few adjustments to the model first, then try some of your suggestions on a scale model first before printing it full size!
I often print a solid support first with PVA (dissolves in hot water).
You can than insert the support just before it’s actually needed and the print will be perfect.
When it’s done you just wash the support off.
That is an interesting suggestion for when you don’t have dual extrusion option.
super another achievement done!
12 days later
Hey Bud,
You should do a extruder temp test…
We have the exact same printer, and I know for a fact it is capable of doing a much cleaner job. Download some test prints from thingaverse, and do some baseline testing.
Different filaments will have different ideal temps etc, and doing a quick extruder test with the different types of filament will give you a good baseline to start with to make adjustments.
Just a thought 
Cheers,