As yet un-named, my OO layout starts.

[Too Tall]

Hi Stese.
Those home made versions look the ticket for angled cuts, I also found a video on YT where they used brass screws and soldered the rails to those, I may give that a go as the lower section will be in a tunnel so not visible.

As mine is literally a lift out section, I cant plug and socket it, but I have now removed the loose pin hinges and used some suitcase catches which look better (not that they will be seen once all is done), but more importantly are going to be easier to get to (I hope).
I am going to use some small right angle brackets to butt up against to ensure alighnment front to back for now.
I also will have an upper level to deal with, but I think I can use some vertical plug and sockets for that, and if fixed to the lower level removeable section, hopefully will ensure that it all lines up properly.
A walk in the park for the experienced builder, but for me its a steep learning curve

[Walkingthedog]

My lift out section is held in position with large metal pins pushed into holes from above. Almost invisible when pushed fully home.

[Too Tall]

It has been a while and not a lot to add (life !) but I have 3DP myself some point jigs for frog wires, point motor and dropper wire holes.

I also had time to contemplate th growing collection of Loco's, and so I decided the lower level branch line will now become a dual line too.
This obviously compromises on scenic plans a little but I think I have it sorted in my head now !

So the new layout will closely resemble this: Upper in blue, lower in grey.

[bulleidboy]

Nice looking layout. Does the high level connect to the low? What size is it -the layout not the gauge?

[Too Tall]

No connection, Upper and lower levels will remain physically seperate. I deemed the space required for a sensible gradient was too much of an impact on what I am hoping to achieve with scenery.

Size: approx 16ft long overall x 8 ft wide at the right side and 5.5 ft wide at the left side, with the wider left side being 8ft long.
In mm L 4880 x W 2440 on the right, W 1700 on left.

[Too Tall]

My layout is a slow burner ATM, Not a lot of visible work gone on to show. I have now fixed down the goods yard , magnets added in sidings for Kadee uncoupling, and every individual track piece has had dropper wires soldered. I am now starting work starting on the lower level mainlines.
At this point I realised the Peco set-track spacing were likely to cause issues for larger steam locos and longer coaches with combined over/under hangs, so re-tweaked to give more space on the curves.

Below is the tweaked plans, firstly lower level, then upper level, than combined.

[Mountain Goat]

The metal pin idea WTD has is interesting.

Looks a lot of track on the layout plans. Impressive. Any thoughts on how to clean the track?