I'm pretty new to this myself, so not sure if I can be much help, but I'll give it a go. I do a lot of my modeling in Hammer. I have, however, imported some stuff from Blender. I've tried importing as fbx and obj. I usually have better luck importing obj files. You may want to give that a try. If the whole model is a red mesh, that means the materials didn't import. If that's the case, you can follow the materials section of this tutorial (it's a Blender to Hammer tutorial, but the material set up should be similar)- https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=890780029

If the red lines are just on some of the edges, I have also seen that before. Hammer sometimes has trouble importing some of the modifiers from Blender and edges can come out twisted or overlapped. I'm guessing it could be the same with Maya. If the problem isn't too bad, I can usually just highlight the offending edges or vertices in Hammer and move them slightly to fix it.

Thanks, I got it to import with the texture but the wing is sill an issue. I didnt know you could physicly edit models in hammer. I thought it was only minor modifications. How would I move verticies in the model editor?

If you imported it as a model, instead of a mesh, you will need to right-click it in the hammer window and change it to editable mesh (I'm not at my computer right now, but I think it's a couple menu items deep, click on something like object or entity in the first right-click menu and get another set of menu options). Then, you should be able to use the icons at the top to turn on vertex-select and make the desired edits. I have not used any animations or done any rigging (just made simple physics props), so I don't know if your model's skeleton will be negatively effected by converting it to mesh.

I should clarify: If it's a model, drag it from the asset browser, into the scene window. Right-click that and convert to editable mesh. When finished with your edits, you can convert it back to a model and overwrite the previous one. There may be a way to do it within the model editor, but this is the way I have always done it.

That seemed to have worked. (sorry for the long responce time, things got busy) Now I just got to get the texture and animation working with it. thanks

Glad that it worked out.

Well I still have the similar issue. I still cant get bones on to it afterwards, it causes a crash. It seems to just be an issue with the model itself because when imported alone it is broken. What would cause it to break like that?

holy cow I fixed it. I took the mesh and pasted it into a new maya scene then exported it to fbx. Then once imported to Steam Vr again it doesnt break. All I need to do now is reanimate it to do what I want.

Nice! Hammer can be pretty temperamental. When something doesn't work, I often try random stuff until I find a workaround.