Can a layperson dare to handle the baseboards themselves?

Screw the cutting carriage onto a workbench with countersunk screws. Quick & dirty - but it holds.

Screw the cutting sled to a workbench with countersunk screws. Quick & dirty - but it holds.

But I have to remove it again for each corner to measure the angle.

Maybe two to four single-handed clamps are enough?

Screwing onto a piece of countertop, a leftover piece from the hardware store, is a good solution. Don’t skimp on a few clamps. The tools are definitely cheaper than the external service. I don’t even want to know how many projects I got involved in as a younger person with minimal equipment, only to later buy the right tools. You might as well do that right from the start. You can always clean up your inventory afterwards if you don’t want to become a collector.
Best regards, Gabriele

But I have to remove it again for every corner to measure the angle.

So a combination device for measuring and guiding the cut?

Thanks for your tips. I don't know if I can screw on the part I have. The thing I cut in is also my miter gauge. It's one from Wolfcraft; you place it in the corner, set the angle accordingly, then screw it firmly onto the miter, and then you can insert the strip and saw. After a bit of experimenting, it works quite well and precisely. It's just that the sawing is quite laborious by hand. I have now thought about getting an inexpensive miter saw, but I still have great respect for the thing and am afraid for my fingers. Also, I don't know if I can manage the operation. From the photos on the internet, it's not directly clear to me which way the strip has to be inserted there and how to set the angle. Some cheap ones can also only tilt in one direction. o.O I don't really get it. Now I'm looking for a "simple" solution to keep using my beginner miter cutting box. I have a Bosch multitool here and a jigsaw. The latter, I think, is too heavy for that and I wouldn't know how to hold it safely there if there's no guide to rest the saw on; that seems unsuitable to me. Or rather, I have to admit I once tried to saw off a piece of cable duct cover with the saw without a guide and without securing it, that was, um - very adventurous. :D I could try the multitool to see if I can saw in the box with it. It has like 4 metal pins between which you saw. I'm somehow afraid that if I hit those metal pins while sawing with such an electric tool, it could be dangerous. :oops: