So my best customer dumps this prototype job on me a few weeks ago, consisting of 3 assemblies of one type and 2 of another. The (2)pc job involves a housing made from polypro rod, nominal 2.5 OD, by 15.85" long, along with about a dozen other parts. There is a flat-bottom bore finishing to 12.16" deep (on center), 1.91" diameter. I have made similar parts before, nothing this large, though. The bore bottom does have a .32 dia center hole leading to another smaller bore from the opposite end of the part. Tolerances can be +/- .010, finish on the bore bottom needs to be good enough for an o-ring seal.
I am envisioning steady rest and drilling from the toolpost, then boring, although I have yet to look in detail at the real estate layout on my Clausing 12x36 to see that this is actually possible.;-) I'm also considering that this may be the time when I finally have to buy a right-angle head for the BPort. Finding a suitable boring bar is also a challenge, as may also be avoiding ripping the toolpost off the compound with 13" of boring bar lever to work with...
Any smart suggestions will be eagerly considered.
I am envisioning steady rest and drilling from the toolpost, then boring, although I have yet to look in detail at the real estate layout on my Clausing 12x36 to see that this is actually possible.;-) I'm also considering that this may be the time when I finally have to buy a right-angle head for the BPort. Finding a suitable boring bar is also a challenge, as may also be avoiding ripping the toolpost off the compound with 13" of boring bar lever to work with...
Any smart suggestions will be eagerly considered.