Hi, I'm new here, so I hope it's acceptable that I start a new thread for this question. I'm a high school student and I'm taking a traditional photo class for the first time.(took a quick course in middle school but that was 5 years ago and I don't remember any of it). I'm learning quickly and I enjoy my time in and out of the darkroom. Most of the enlargers we have are 23CIIs and 23CIIIs but there's a single 45mcrx in the corner that was donated to the school. I've talked to the teacher and between the two of us, we got the bulb to go on but we can't figure out how to make the motorized chasis work or attach a timer. If anyone could offer some help or advice it would be greatly appreciated. Here are the pictures of the whole set up. This is the enlarger This box is plugged into the wall and powers the enlarger This unit is attached to the horizontal railing and has a metal strip that comes out of it that is attached to the top of the vertical rail. It's not plugged into anything. These are the timers we have at school Thanks in advance.