Hi, I am new to this group and need some good advise. I have a manual Bridgeport type vertical milling machine, and need to run many plastic parts that need to be drilled and tapped with a (1/8 " NTP thread) in the same hole.
1) The easy part is that these parts are plastic PVC pipes and the placement of the holes is not too critical, except that the tapped holes need to be accurate and on the top of the pipe surface. 2) Whenever a hole is drilled, I cannot move the position of the round pipe, and need to tap the thread in exactly the same position as the drilled hole. 3) I have clamped the pipes to a rigid flat 'Vee' fixture which enables the pipes to be held in a fixed position and can be easily moved on the machine table. 4) Clearly it is not possible to remove the drill and change to my tapping attachment for many thousands of holes. 4) Is there a relatively inexpensive manual head or attachment (R8) I can purchase that will allow me to drill a hole and then swing a tapping attachment to the same position without moving the part? Of course this process could be done with a CNC machine, but I am not considering buying one for this simple operation.Please can someone give me advise on where a can get such a product, or advise on what to do?
Thanks,
Darryl