I built a spider for my old ShopMaster 3-in-1 combo and it worked great for me while I had that machine. Now I've upgraded to a Jet GHB 1440, which I've really been enjoying. I want to build an outboard spider for it for barrel work, but am trying to figure out the best way to attach it to the spindle.
There's not really any sort of good access to get in next to the spindle to use setscrews to secure it - and the spindle isn't threaded on the end like my old ShopMaster was (I just replaced a locknut with my spider, which worked quite well.
I was thinking about just doing a tight interference fit - bore the spider to the exact ID of the spindle OD, or maybe half a tenth under. Then pack some dry ice on the spindle and heat the spider - then slap 'em together (hopefully correctly the first time.)
Is this a dumb idea - anybody have any other suggestions? Obviously I want to preserve as much of the spindle ID as possible.
There's not really any sort of good access to get in next to the spindle to use setscrews to secure it - and the spindle isn't threaded on the end like my old ShopMaster was (I just replaced a locknut with my spider, which worked quite well.
I was thinking about just doing a tight interference fit - bore the spider to the exact ID of the spindle OD, or maybe half a tenth under. Then pack some dry ice on the spindle and heat the spider - then slap 'em together (hopefully correctly the first time.)
Is this a dumb idea - anybody have any other suggestions? Obviously I want to preserve as much of the spindle ID as possible.