My table just wont sit down on the grass

[hyposmurf]

I managed to model my table for the competition before I went away,realising that the bottom of my table wasnt the bottom rather the side or something :roll: .It has caused me endless trouble and I now realise how imporatnt it is to start the right way up :) .I created a flat cube for my grass then I would realise the chair isnt sitting on the grass properly,its either sinking or too high.If I then go to move it higher or lower its horizontal position changes.Ive tried drawing like a mini baseplate for the legs and then aligning it to the corners but its just wont work,it just doesnt align and looks like it has been turned over in the wind.I rendered it before I went away but wasnt happy with the result.I'm now back from my hol and intend to at least submit something its driving me nuts!Learnt quite a bit in the process though.Do you think I should remodel the chair so its easier to work with :cry: ,only have a few hours left to play with it.

[tlyall]

hey Hyp...

here is what I would do.

Draw a line from corner to corner on the top plane of the grass.
Draw another line from the bottom of one table leg to the bottom of the opposite leg.

Then use the align command and it will flip over and align with the plane line on the grass which you drew. When it asks you to scale the object choose NO.

HTH...

[hyposmurf]

Ive noticed that I use a side view and then move my model so it sits on the grass level.It appears fine until I view it in the top view.The same happens if I use the top view and move the table,it appears out of line in the side view.I have now used the sw isometric view & drawn a line,moved the table so it sits on the linethats parallel to the grass level.It all seems fine then I used the glabl view and CAD crashed on me :cry: .Im going to give it another go,should I be using the SW isometric for moving and aliging objetcs?

[David Bethel]

Hypo,

Try using a plain old 3DFACE for the grass surface. If it is a topo, the a 3DMESH will work as well. Entities with thickness can be tedious. -David

[gcp310]

try using your point filters when moving objects in 3d.

a good one is .xy - for example, if you have a floating chair go move>select chair> then first point will be the foot of the chair,second point type in .xy and select where you want it>then type in 0. provided you have your grass plane on 0 your chair should then be sitting on the grass correctly.

hope you understand this cryptic message. good luck

G

[fuccaro]

Hypo

I agree with G. The filters are out of fashion, but it is a working way. Often I still use this method.

What is that "flat curve" you used to create the ground? Try with a 3D mesh. If it is dense enough you may make fine adjustment. Instead of moving the mesh just deform it by moving the appropriate vertexes to meet the ends of the legs.