The Cruxtruder is very large and should be placed carefully as not to obstruct any important doorways, as it costs a lot of Build Grist to move. Unfortunately, Rose deploys John's Cruxtruder in front of the front door to his house. The other kids each have Cruxtruders in their houses as well. Rose's is in her observatory, Dave's is in his bedroom, and Jade's was temporarily in The Grand Foyer, but was teleported into space by Becquerel soon after. The Cruxtruder can be attached to the Alchemiter as an add-on, rendering the original separate device obsolete.