Brand new member today, I own a Bosch 12" miter saw, GCM12SD, that I have not liked since new. My old Porter Cable non-sliding saw was much more accurate. The blade on this Bosch wobbles to the point that I can't get a clean miter cut when needed. I have replaced the blade several times with no change. I actually took one of the blades to a machine shop and had it straightened and balanced, didn't help. I just purchased all the internal parts that have anything to do with the blade thinking something is bent or machined incorrectly. I have not received the parts yet but at this point, If they don't fix the problem, I will give this one away and look elsewhere for my next purchase. I don't want to sound like a grumbler, most of the tools in my shop do a great job. This saw just hasn't lived up to its reputation.
I did contact Bosch. very courteous but was unable to give any ideas or help.