Hello Have a look here for the sizes of the ER nuts (there are several versions).
http://www.aliexpress.com/store/product/ER-chuck-nut-ER-collet-nut-ER-nut-ER11-50-type-A-M-UM/506241_528850800.html For ER 20 (the smallest that can take a 1/2'' tool shank), the minimum diameter would be 28 mm, with a type M nut. So from your 40 mm spindle body, that would give you an extra 6 mm of clearance. With the much more common hex-head nut, the gain would be minimal - only 3 mm. > Greetings everybody; > > Thinking in electronic ink here... > > Is there a quick & dirty but adequate way to extend the 2 most common > carbide bit sizes in my collection in order to gain clearance between > the workpiece and its holding jigs? Something like an ER8 that I can > plug into an R8 maybe? > > Neither seem to say what the OD of the nut is and I've > already hit the side of the spindle against this jig when it was on the > toy mill, whose rotating spindle nose is 40mm. ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
