In my attempt to bore between centres -
http://madmodder.net/index.php?topic=4150.0 ..... I have come across the issue that my Boxford does not have a T-slotted cross slide so I`m going to struggle holding the work onto the saddle/cross slide. I know I posted these same images on that thread but I found Boxford did produce a boring table:
The bottom is the same round dove tailed attachment that the compound slide uses:
I figured if I could turn up a similar spigot and bolt it to a plate it would lock down tight just like the compound slide.
So not many pics but all straight farward. I turned the spigot by making a form tool as I realised the angle wasn`t critical, it just had to be angled so that the grub screws pull down on the taper. So here is the spigot sitting on the plate and I also turned a small approx 0.5mm register on the bottom of the plate to locate the spigot.
Spigot sat in register:
Bolted in place and profile of spigot:
...and locked into position, very firm and certainly won`t move!
Now I just need to decide how to finish the top. I did consider T-slotting it but I`d have to buy a suitable endmill which will cost. I think perhaps the best way will be to drill and tap in a 1" square grid ?
Any suggestions? - the plate is 3.75" x 8"
Chris