Hi Ovgron,
in this size its the same by using torch or solder. In every case its strong enough.
By using a very small flame you can use a torch to build the mainframe. But you have to fit the small parts o a ceramic or the torch blow it away ;-)
It is also strong enough to take a 60W 5mm wide Solder Iron. Bevore soldering you have to clean up the brass-parts.
I dont like solder-guns. They are very heavy weight and so its a problem to keep your hand in a definied position for mor than a fwe seconds.
If fix the parts o a wood-frame and solder by using a light-weight 60W "Heatcontroled" solderiron. It works very good.
best regards
Thorsten
www.mikromodell.de