I came across an innovative scratch-built model building jig on You Tube recently that I believe would be very useful for those of us who DIY structures, engines and rolling stock.
Scratch Built Styrene Model Tool - Like having Eight Hands! is the title of the video and
https://youtu.be/bG8saJ_GZpQ is the You Tube location for this, and the author is called “Tinker Terrain”. He is a fine scale modeler and his jig- using metal surfaces, magnets (sheet magnetics and small rare earth magnets) and key stock shapes is well-suited to our hobby.
Although he uses repurposed filing cabinet sheet metal in his version, not having a spare junk filing cabinet available, quick research showed that you can get smaller 22 and 28 gauge sheet metal blanks at Home Depot for between $8- $12. These were double-stick- taped to both surfaces. The magnets and magnetic sheet are available at Walmart (craft/office supplies aisles) and the key stock shapes (box set) is available online thru Amazon.
I don’t recall any particular dimensions, but that can be determined from the video. I guess that 15-18 inches long would be a workable size.
I am going to build mine this weekend!
Cedarwoodron