[I closed my ultimakers to reduce some of the noise, but I'm not having success with printing]

Hello guys, I closed my printers in order to reduce noise a little because I am not having success with my prints, should I modify something to be successful? I am using PLA, in one of them it got to clog the nozzle well. What can it be? how can I solve?

[DXU - Efficient Dual Extrusion Upgrade for UM2+]

Really nice work here ...I try mark2  put lost a lot space print, I will try this now but I would like to know if can I use the extra fun from U2 that I have and only buy the kit nozzle?

[Ultimaker Mark2 - The Smart Dual-Extrusion Upgrade]

hi! I install the mark2  but what printer I have to configure in cura, help me please!