How can I do Unstack of two columns like the one in Minitab

Question

I have the following data in a Pandas data frame:

Cavity	Dimension
1	1.45
1	1.47
1	1.46
1	1.45
1	1.43
2	1.40
2	1.39
2	1.41
2	1.40
2	1.42
3	1.51
3	1.5
3	1.49
3	1.5
3	1.52

how can I reshape the data to the following format in pandas?

Cavity 1	Cavity 2	Cavity 3
1.45	1.40	1.51
1.47	1.39	1.50
1.46	1.41	1.49
1.45	1.40	1.50
1.43	1.42	1.52

is there any way to do this reshape (melt backwards)?

thanks for your help!!