[ChrisH]

Originally Posted by Brianu98

Hey, does anyone know why none of the parts on the first base website constrain in inventor. Once you put one constraint on each part it gives you errors for every subsequent one. This makes it very difficult to lock parts in place. If anyone has any idea why this is happening please let me know ASAP. Thank you.

If the part is molded it probably has a small amount of "draft" to assist in removal from the mold. Draft is a small taper angle so the part is thicker towards the leading end when you remove the part from the mold. Draft can be hard to detect visually on a CAD tube. You have to measure the part to find it, especiaslly if you are using a perspective rather than a parallel view. If you are having draft issues either constrain to holes or use edges rather than surfaces.

ChrisH