Amateur Projects   I feel that this sentence in the introduction STM can be a challenging technique as it requires extremely clean and stable surfaces sharp tips excellent vibration control and sophisticated electronics although mostly true mistakenly gives the impression that STM is an inaccessible technology  Many very innovative hobbyists have created their own STMs some for very cheaply  I attempted to add a clause to the end of that sentence to this effect but Materialscientist removes it stating it violates WPNOTHOWTO  I do not feel that adding this information with no instructions just the statement violates WPNOTHOWTO  Materialscientist can you back this up further at all  I agree it is inappropriate to describe in wikipedia how to accomplish many tasks but I think it is very important that wikipedia not convey that these tasks are more difficult than they are  I do not think it is wikipedias place to discourage home science  I intended the links only as citations so my edit would not be reverted I realize now I did that improperly and am editing a third time with more correct citations