a spell to summon an orb

There is no such spell because Magick is a force alone. Meaning one cannot create anything with Magick, yet you can create change.

So meaning I can create my own but using no spells but spiritual or chakra

You cant create anything out of thin air. To keep fire alive it needs oxygen without oxygen no fire, so can you create fire out of thin air?

No I can't because Idont use the element of fire

No, you can't do this.

Hatsv, thank you for telling them the answer I was trying to give him without being blunt. (No sarcasm was intended)

One can not make an orb

I think youre unclear on what magick is...

Orb? What do you mean by that? Are you meaning a psi ball? No spell needed for that. Seems some education may help you here.
Beginner links:

http://www.spellsofmagic.com/read_post.html?post=71692
http://www.spellsofmagic.com/read_post.html?post=483942
http://www.spellsofmagic.com/read_post.html?post=251089
http://www.spellsofmagic.com/newbie_central.html
http://www.spellsofmagic.com/tips.html
http://www.spellsofmagic.com/faqs.html

Blessed Be...

I agree with Tombstone. You need more knowledge.

An orb is generally the form of a spirit takes. A sphere of energy is generally the natural shape any energy takes when it is concentrated. Circles are the shape of moving energy.

I'm not sure why you want an energy weapon. If you are this new in magick, you should not be worried about attacking and making enemies you cannot handle, but instead perfecting defending yourself. Think shields, guardians, wards, amulets, protections.