【转帖】inserting new part in assembly

yang686526

inserting new part in assembly
this might seem a newbee question, becaus i am one.
fist i made sketch 'a' in the assy on the top plane. then i created a plane 'nr1' parallel to the top plane. now i want to create a new part on this plane 'nr1', using the sketch 'a' as template with the convert command. when creating a new part in an assy, you're prompted to choose a plane. i choose plane'nr1' witch is parallel to the top plan of the assy. so far so good.
now when i edit the part, suddenly the top plan i did choose before has changed into the front plane.
is my procedure incorrect or what is going on??
a little sorry for my english, its a little rusty.
sw2008sp4
check out our whitepaper library.
i don't like creating new components on-the-fly.  usually i create a new part, save, then drag into assembly.  that way i don't get any "helpful" automatic extras.
i've run into this before also. what i've done to remedy this is when i create the new part in the assembly and it asks for a plane i hit the escape key and cancel out of the new part, then i go back and edit the component for the newly created part and all the planes are in there right spots.
i don't know if this is the correct way to do this but it seems to work for me. maybe someone else has a better way.
i always use thetick's method--keeps the hassles of software logic to a minimum.
  
jeff mowry
the plane you select automatically becomes the front plane in your new in-context part.  i also do as thetick to avoid any confusion.
"art without engineering is dreaming; engineering without art is calculating."
you're probably running into this problem because you have the "start sketch on new part creation" option enabled.  when you have this option on sw has a bit of a conflict.  you've selected the plane that you want the first sketch to be on, but sw wants to start a new sketch on the front plane because a new part is being created.  which comes first?  it gets to be a pain in the o-ring, which is a shame since in most other instances having the sketch creation option enabled actually saves clicks.  either of the methods that the fellas mention above will work around this issue.  or you can uncheck the sketch creation option.
dan
heed thetick.  keep it simple, avoid top down.
thanks guys, i've tried thethicks way and it looks satisfieing. need to do some test further.
why i use top down assy:
when drawing knifes for the metal industies, there is alway a male and a female part. so i draw in the top plane of the assembly the basic form of the blade as a sketch (exp.: a radius). now i make two planes extra, one for the upper knife an on for the bottom knife. further i do insert part on one of the planes (exp.: upper knife) and with the convert command i select the sketch in the assembly. same m.o. for the bottom knife.
in this way, when the radius changes shape or dimension, i only have to adjust the sketch in the major assembly and the parts are automaticaly updated withe the new shape or dimensions.
until next problem...
noxi
sw2008sp4
hi, noxi:
nothing wrong with top down design.  if you forget about front/top/right planes, you have no problems.  these planes are imaginery.  sw used to call them plane1/plane2/plane3.
alex