Hi, I am new here and like this forum A LOT. Here's my problem: I want to slide a plate up and down, but keep it from sliding to the side. I want to hold it up with springs against a moving barrier above it. The barrier is moving to the left applying a force of 800 grams moving the plate to the left. Do not want the plate to move to the left at all! I want to hold the plate against the moving barrier with a force of 200 grams. When I hold the plate manually against the barrier at that pressure, that is when I get the 800 grams pushing to the left. My question: Can I just have the plate ride up and down on pins that keep it from sliding sideways? Or will they make so much friction and instability that it will not be reliable? Please do not tell me to install wheels or something expensive like that, this is a low-cost product.