Artem Chigvintsev says he's more than just a 'DWTS' alum, he's also a DIY guy at heart ... pushing back on some nasty things his estranged wife says about him.
Here's the deal ... in a restraining order Nikki Garcia (Bella) filed against Artem last month, she claimed he got cut from the upcoming "Dancing with the Stars" season a week before his domestic violence arrest and started working a construction job she says he felt "was beneath him.