Mini Magnetic DTI Holder
Posted: Thu Oct 25, 2007 6:45 pm
Here's a quickie I made to ease alignment of my benchtop mill's DRO
10mmm aluminium bar, 6 holes all threaded.
2 pairs in the bar faces at right angles, just intersecting, accepting magnets or retaining screws.
1 pair at the end accept DTI or retaining screw.
This allows the DTI to clamp in the side or end of the bar and allows magnets to be clamped protruding from any of the four sides
http://i135.photobucket.com/albums/q158 ... Holder.jpg
It clamps to any reasonably flat face well enough to allow the DTI to be used accurately and repeatably, the clamp screws can be released & re-tightened to allow the magnets to seat well on the surface.
This shot also shows the bottom mount for the round column, the column has a key & gib strips & so keeps alignment nicely, the top mount had to be made to clear the key.
http://i135.photobucket.com/albums/q158 ... nMount.jpg
I managed to set the scales to within .001 over their operating length (300mm) the final shot shows the mill with VFD, DRO, 7X speed increaser with reaction bar and flexible pipe & nozzle for air to clear chips
http://i135.photobucket.com/albums/q158 ... andAir.jpg
I'm looking at modifying an airline oiler to drip WD40 into the air, not to mist, just to regularly spit small droplets at the work.
Nick
10mmm aluminium bar, 6 holes all threaded.
2 pairs in the bar faces at right angles, just intersecting, accepting magnets or retaining screws.
1 pair at the end accept DTI or retaining screw.
This allows the DTI to clamp in the side or end of the bar and allows magnets to be clamped protruding from any of the four sides
http://i135.photobucket.com/albums/q158 ... Holder.jpg
It clamps to any reasonably flat face well enough to allow the DTI to be used accurately and repeatably, the clamp screws can be released & re-tightened to allow the magnets to seat well on the surface.
This shot also shows the bottom mount for the round column, the column has a key & gib strips & so keeps alignment nicely, the top mount had to be made to clear the key.
http://i135.photobucket.com/albums/q158 ... nMount.jpg
I managed to set the scales to within .001 over their operating length (300mm) the final shot shows the mill with VFD, DRO, 7X speed increaser with reaction bar and flexible pipe & nozzle for air to clear chips
http://i135.photobucket.com/albums/q158 ... andAir.jpg
I'm looking at modifying an airline oiler to drip WD40 into the air, not to mist, just to regularly spit small droplets at the work.
Nick