BigBossMan
Member
- Messages
- 64
A while ago, in a fit of boredom I bought an arbour (and several cutters) that claimed it could be fitted into a pillar drill chuck and so enable the use of broaches via pillar drill.
This I found to be unworkable as my 3/4HP drill wasn't man enough (or shall I say not the right tool for the job) as it kept jamming unless giving the mildest of feed pressure which was not the way to go.
So again, in a fit of boredom and the fact that eBay is open 24/7 (and I just couldn't resist it and I didn't want to waste the cash I had already spent) I bought a Rotabroach machine after much deliberation.
Whilst perusing the delights of YouTube tutorials I came across a guy that had made a stand for his mag drill to enable it to be used as a pillar drill as well.
Well, seemed I had come this far I might as well do it and have a go at making my own. I must say although I haven't used it yet due to forgetting to bring some clamps home from the garage 8 miles away, I quite like it.
Anyway less of the rambling text, here's some pics... I know you like pics
I had the top plate and the table laser cut locally which was probably the most expensive way to go but I wanted a neat 50mm hole in the table shape.
...then I took it home to check alignment to the mag drill and mark out the back and side stop positions for positioning the mag drill. All was fine and the feed position and depth for a 1" cutter was spot on..
I have made two sets of spacers out of 25mm x 20mm both with pass through holes for the times when I need to use the 2" high broaches. This should be an easy change over as it'll just mean undoing the 4no long 8mm x 100mm bolts and stacking the other set of spacers on top with longer bolts going through. (Hope I'm making sense)
Positioning stops now in place, these are the M8 allen head cap screws, 2no each side and one at the back, I tapped these into the top plate.
as said I forgot my clamps so cannot try it yet, but you get the idea
Max cutting capability is a 40mm diam broach on this machine.
The extra holes in the top plate are due to the laser cutters saying they couldn't do 8mm holes in 12mm steel, so I redesigned the lower box and changed hole positions knowing I'd have to drill my own holes anyway, but they laser cut the holes somehow even after I said don't worry about them, leave them.
I made use of these holes for the hex keys so no problem really.
I think I'm gonna have to make a tray for it to sit in to catch the stray cutting fluid though. I wonder if I can strain the fluid and re-use it?
This I found to be unworkable as my 3/4HP drill wasn't man enough (or shall I say not the right tool for the job) as it kept jamming unless giving the mildest of feed pressure which was not the way to go.
So again, in a fit of boredom and the fact that eBay is open 24/7 (and I just couldn't resist it and I didn't want to waste the cash I had already spent) I bought a Rotabroach machine after much deliberation.
Whilst perusing the delights of YouTube tutorials I came across a guy that had made a stand for his mag drill to enable it to be used as a pillar drill as well.
Well, seemed I had come this far I might as well do it and have a go at making my own. I must say although I haven't used it yet due to forgetting to bring some clamps home from the garage 8 miles away, I quite like it.
Anyway less of the rambling text, here's some pics... I know you like pics
I had the top plate and the table laser cut locally which was probably the most expensive way to go but I wanted a neat 50mm hole in the table shape.
...then I took it home to check alignment to the mag drill and mark out the back and side stop positions for positioning the mag drill. All was fine and the feed position and depth for a 1" cutter was spot on..
I have made two sets of spacers out of 25mm x 20mm both with pass through holes for the times when I need to use the 2" high broaches. This should be an easy change over as it'll just mean undoing the 4no long 8mm x 100mm bolts and stacking the other set of spacers on top with longer bolts going through. (Hope I'm making sense)
Positioning stops now in place, these are the M8 allen head cap screws, 2no each side and one at the back, I tapped these into the top plate.
as said I forgot my clamps so cannot try it yet, but you get the idea
Max cutting capability is a 40mm diam broach on this machine.
The extra holes in the top plate are due to the laser cutters saying they couldn't do 8mm holes in 12mm steel, so I redesigned the lower box and changed hole positions knowing I'd have to drill my own holes anyway, but they laser cut the holes somehow even after I said don't worry about them, leave them.
I made use of these holes for the hex keys so no problem really.
I think I'm gonna have to make a tray for it to sit in to catch the stray cutting fluid though. I wonder if I can strain the fluid and re-use it?