TrainGuyMcGee posted:Thanks all for the input. Regarding the noise my layout makes, I have a pretty good idea of what it is.
When I built my shelf layout a couple of years ago, I opted to use MDF instead of plywood. My shelf is 9 feet above the ground so safety was of course, at the forefront of the design process and the MDF is less likely to warp (which would cause derailments etc..).
The track I decided to use for my layout was Atlas (solid rail). IMHO, their track was the "quietest" out there and it looks really nice too. But when I installed the track, I opted to screw the track down for stability and safety purposes. I knew that when I did this, the screws would essentially transmit the vibrations straight down to the MDF boards. This is probably the primary source of the noise being generated.
I did use a layer of Woodland Scenics O scale track roll underneath to help dampen the noise. But, as noted above, the screws obviously go right through that into the MDF and thus, negate the noise dampening benefit of it.
I could try to loosen the screws a bit. If I do this, they may not carry as much vibration down to the MDF.
I would strongly suggest that you loosen the screws before you try anything else. I have installed quite a bit of Atlas track and one of the things I like about is the way it connects together and stays together. If you used the Atlas screws, you will notice the the screw has a smaller than the screw hole. If you put the screws in so that they are about a fingernail thickness shy of touching the ties, it will keep the track in place but not transmit the sound.
Good luck with your choice,
Don
