Expanding the middle part of a pipe

Question

Hi everyone,
 
Beginner with PTC (or any other CAD-software), so bear with me. I am using PTC Creo Elements for a small private project.
This is probably a dumb question but I failed to find a solution. I have designed a pipe with some holes and pins at either end. When I want to extend the length of the pipe, the new part is always added at the end of the pipe, while the holes/pins stay at place. However, I want them to be at the ends of the extended pipe, because this is where I want to join another pipe. Is there a way to extend the pipe "in the middle"? I tried adding a new workplane in the middle of the pipe inserting a new part but that didn't work. Do I have to create a pipe with the "proper" length in the first place? I actually want to try out some different lengths.
 
I have tried to find a solution using the search function without success. Probably the answer is too simple to raise a question in this forum.
 
Any idea is truly appreciated
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PeterKehoe · Accepted Answer

There are a couple of ways to change the length of your pipe while keeping the pins and holes relative to the ends.

One way is use the "Move 3D" command. The key is when you select the items to move, select the end face, the faces of the hole, and the all of the pin at the same time; the easiest way to do this is to select "By VP Frame". Selecting all of the faces of the pin will cause that part to be moved.

Another way is to cut the pipe in the middle, move one section (plus the pin), move one end of the cut section until it meets the other, then unite the parts back together. This takes more steps, but is sometimes more straight-forward if the geometry in the middle is more complicated than a simple pipe.

esorensen · Answer

Hi Patric,When you select the dimensioning reference for the location of the hole, use the end surface of the pipe that the hole needs to be near. That way, when you change the length of the pipe, the hole moves with the end of the pipe. This also provides you with dimensions to show on a drawing that are functional. If the hole needs to be 0.5" away from the end of the pipe in order for it to connect to the next pipe, define it that way.ES

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