Geoff
I have had a C4 for a while now and I do not regret buying it.
1. The variable speed is very useful. You can easily adjust the speed to suit the tool and material, I find this far better method of determining the right speed than the cutting speed charts I have.
2. The powered cross feed is a mixed blessing. It is a nice to have rather than a must have I think. The downside is that it is operated by the same lever as the traverse and without practice, it is easy to select the wrong position or if you are not careful, inadvertently put it in cross feed mode when turning the traverse off.
3. It fitted in the space available and it has the advantage of being able to handle many projects that have been published for machining on a Myford ML7 etc.
4. If you buy one do not be tempted to get the rotary digital readouts. I did but have since taken them off in favour of a linear type.
5. The push buttons for speed selection are OK but I would prefer something a bit more positive for the stop button. Although there is an emergency stop, the instinct is to go for the normal stop button in a hurry and I may look into modifying this.
6. The gears are a bit noisy and a bit fiddly to change but I do not do much screw cutting so it is not a big problem for me and the noise can be reduced with proper lubrication and set up.
7. Mine worked OK as delivered but did benefit from the usual clean and adjustments recommended for this type of machine. I have never been fully happy with the compound slide though. It has a reasonable length but the gib strips are only in contact with a short length of the body at any one time. Mine spends most of its time locked in position.
8. I am not averse to doing modifications but other than fitting a quick change tool post, replacing some screws for better quality ones and making a carriage stop, I have not felt the need to do more.
Regards
John