| Gallery, Projects and General > How do I?? |
| the best method to get out the Centre bit |
| << < (3/6) > >> |
| lordedmond:
Thanks |
| Jasonb:
Or pop down to your local water jet cutters http://www.sciss.co.uk/epages/sciss3.sf/en_GB/?ObjectPath=/Shops/sciss3/Categories/Gallery |
| andyf:
--- Quote from: lordedmond on March 29, 2011, 02:30:07 AM ---....andyf thanks for the link its an unfortunate thing that I do not have a windows pc , I use a Mac so exe do not work --- End quote --- Wish I didn't have to get involved with Windoze! The PCD program is easier to use in metric. You said more or less 3.5", which is about 90mm. If you do decide on chain drilling, an 8.5mm drill making 30 holes at 12o intervals at a PCD of 81.4mm would do it. So would a 6.5mm drill making 40 holes at 9o intervals at a PCD of 83.45mm. And |
| lordedmond:
--- Quote from: Jasonb on March 29, 2011, 05:13:59 AM ---Or pop down to your local water jet cutters http://www.sciss.co.uk/epages/sciss3.sf/en_GB/?ObjectPath=/Shops/sciss3/Categories/Gallery --- End quote --- I would need a packed lunch to get there I live in south Derbyshire Thanks anyway Stuart |
| Bogstandard:
If you can hold it on your lathe Stuart, the easiest way would be to grind youself up a trepanning tool of just over 1/2" cutting depth. Cut one side, turn around and then cut the other side. Centre falls out. Or just clamp it central onto your RT, and using something like a 6mm slot drill, machine thru it. Don't forget to put something sacrifical underneath, otherwise you would end up with a new circle in your RT top. I do have a commercial tipped trepanning tool, but it is a bit far for you to travel just to get it done. But the offer is there. John |
| Navigation |
| Message Index |
| Next page |
| Previous page |