If you run on machine PCA (example) you can use Settings/Project settings/Configuration/Server run time port "Open to other other machines" and on the other machine (in the same netwerk) open the application with http://PCA:8080 or by ip http://192.168.1.34:8080. Please mind that these are examples, replace them with data from your situation. Use start/cmd/ipconfig to get your local ip.
Or deploy it to sandbox in the Mendix Cloud.