Just got an Ascent trainer. I guess all trainers are configured to use quick release axles. I don't have spare wheels with qr. Are there any ways to rig up the trainer to accept solid axles?

Your trainer didn't come with its own skewer? When I got my Nashbar fluid it came with its own quick release skewer.

A solid axle means you can't use the skewer. AKA a nutted hub.
Search for "trainer solid axle"

Here is one thread that seems to indicate that this will be fine.
https://www.bikeforums.net/showthread...ner+solid+axle

Yes the trainer came with its own skewer. I just want to use my solid axle wheeled road bike if I can without going crazy changing the axle.

Thanx for that information. I am making progress. I found that the drive side axle nut fits snuggly in the round trainer cone. I will add a second nut to the non drive side. But that nut I will file partially down to adapt to the inside slope of that cone. Sounds like a plan. I'll let y'all know.

I use a 1up trainer on an older 10-speed with a solid axle. I asked the company about that brefore I purchased it, and they told me their trainer is the best on the mkt. for solid axles (it also comes with a skewer). What they said may be true, or not - but my bike mounted right on with no problems or modifications.

Okay - success!! I went to the local hardware store which carries everything that Home Depot doesn't, and bought two hex nuts - 25 cents each. (Couldn't get 3/8" X 26 tpi, the axle size, so I got 10 MM X 1 which is a close fit). I filed down the nut points on one at an angle to take the inclined shape of the inside of the drive side trainer cone, and I filed the other one into a round spacer that fits snuggly inside the non-drive side trainer cone. Happy pedaling!

Very clever, good job!