Water Tight Prints

[wishbone 3]

I recently printed a part on my UM2 hoping it would be water tight, but the base layer seems to be porous. Side wall seem okay.

Any ideas on why the base layer would not be water tight?

Slicer: Cura

Settings : Set to Fast (I didnt tweak anything, just used the basic fast setting)

Material : Clear PLA

[ultiarjan 1,223]

Specially on the base layer, but also on the walls you need to overextrude, set flow to something like 120 - 140 % depending on nozzle size, also works well in "spiralize" mode.

For this print it's an easy repair, just coat the inside with PVC glue.

[wishbone 3]

Thanks ultiarjan! I'll give it a try.

[DidierKlein 729]

And pay attention if you increase the flow too much it can lead to underextrusion so limit the speed on the bottom layers

[wishbone 3]

Thanks DidierKlien - Do you mean manually adjust the speed (whilst printing) for the bottom layers or do it in the slicer?