Hi All,
Plunged into new adventure for fabrication of CNC Portable Milling/Boring machine from readily available material. I am working in a reputable petrochemical industry. Presently, we have to make a 150 x 80x 90mm deep tappered slots (15 degree draft angle) for repair of a crack on a thick pressure vessel. The existing portable machine did good job on a mockup but due to increase in depth and lot of vibration issues the mock-up job completed in 90Hrs. Thats a big downtime for a plant.
This is the time to make a more rigid and efficient CNC machine that may be portable and mounted on a circular shell at any orientation .. The CNC will be added benefit.
Here are some pictures of the build. The Cross slides working area is 200mm and the Z-axes can travel 150mm. I used salvaged Linear rails and ball screws for this. The machine base is not casted but we have used 30mm Carbon Steel plate
We hope that by implementation of this machine we will drastically reduce the time from 90Hrs to 12Hrs or less.
The target completion date is 15days. Designing by FEA till actual mockup test---15 Days.....