Check out this publication on 3D bioprinting of vascularized and prefusable skin, it is an amazing paper demonstrating how a skin model was bioprinted using a CELLINK BIO X: https://www.researchgate.net/publication/336976373_Three_Dimensional_Bioprinting_of_a_Vascularized_and_Perfusable_Skin_Graft_Using_Human_Keratinocytes_Fibroblasts_Pericytes_and_Endothelial_Cells
I've worked a lot with CELLINK's BioX and can definitely recommend it. The BioX has high resolution, temperature controllable printheads as well as print bed and is very easy to use. The trickiest part when bioprinting a model is to make the 3D model itself, I would say, and to to customize printing pattern, slice the model etc. Good thing with the BioX is that you can start from a stl file of your 3D object and easily set up your printing parameters on the printer, and it slices the model for you. For advanced models with several objects however you still have to use g-codes, but CELLINK has a really good support side on their webpage with guides of how to write/customize g-codes. There you also can find videos of how to use and bioprint with the BioX: https://www.cellink.com/global/support/#1552572789674-442238b7-72dc
Please reach out to [email protected] if you have anyh other questions.