[LimitLess]

Today's assembly testing had some indications of vibration. The project consists of a perforated MDF panel 73" x 37". The holes are to receive a 1/4" 6061 aluminum rod. These rods measure more accurately at .258.
A .25" spiral-cut bit was used to drill the holes straight down. I'm sure the router doesn't even feel the MDF.

The .008" makes a difference when trying to install the rods into the holes but I chose to have them tool the holes with a .25" to examine the consistency.

The results coming from this Warthog is a field of perforations in the MDF that range from .25" to something over .262". This appears to me to be a vibration but I have no real experience with operating or maintaining yet. Thinking about the causes produces a list including the router mounting, the router itself, perhaps the gantry, a possible warp, as you pointed out, and even the possibility of how the whole table is mounted (or not mounted ) to the floor, and finally bearings and guides. ?

Back to my thoughts of purchasing this Warthog. I think it best to see if I can get a Warthog(?) Rep Tech or someone experienced with these machines to look at it. I think the price ($7600.00) can still be good even if I had to give the unit a overall tune-up. I will take my time and chance that someone else buys it before I hastily embrace a can of worms.