Has it really been 3 weeks??!!
Real world work seems too have gotten in the way, but managed to spend a full day on Opcx6's No.3 .......
Got the fore end carved out for all the little bits attached to the barrel
That little ledge is funny and causes 'tipping' issues if not ~just right~ so a template was in order...
Starting to get some good contact now
Looks good! Time to drill the hole for the fore end lug/scutcheon/bolt
The lug looks tricky as the bolt is on a 45 degree angle to the barrel/bore. It does actually rotate a little so the angle is more forgiving if you bork it, anywhere between 42 and 47 degrees - not a great design as it can let the fore end move around a bit.
Best to spend a little extra time on the drill setup:
Note the little step cut into the bottom of the fore end - just making sure that bit enters the work nice and square so it does not wander!
drilling the large diameter hole for the scutcheon/lug without re-positioning the work.
Looks like the extra time paid off - now to test fit:
Success!!
Opcx6 wanted the fore end fully bedded, time to do that (before we install the bipod lug) - turns out to be a VERY good call, the way that single bolt secures the fore end just allows for a lot of movement - probably why there is that piece of white sponge tape at the front of the original foe end. Bedding it will eliminate that completely.
So more prep to keep the epoxy from sticking, yes, that is packing tape! (and a healthy dose of mold release in the receiver)
Epoxy won't stick to it & a couple layers gives enough thickness....
The fit is already VERY tight - so not a lot of epoxy is needed. I expect most of the Epoxy to be pushed down into the barrel channel by the sides of the barrel so I keep the epoxy in the bottom to a very thin layer.
I'm using G2 24 hour cure with a (very) healthy dose of West System colloidal silica. Gives me a great working consistency & makes the G2 very-very hard. Also cuts down on air bubbles. (one of these days I'll have to invest in a vacuum chamber for degassing)
Good squeeze out in all the right places!
Need some light clamping - LIGHT clamping, probably not with this barrel, but you can actually bend lighter barrels by clamping too hard! Use lots of cauls & only enough pressure to get some squeeze out.
So not much more to do with the fore end for another 24 hours - I could start on the stock bolt hole for the butt - but has been a long day & I'd rather tackle that tricky bit when fresh
So instead, I cut some blanks for another CGN'r here & something really special (for me!) cut some blanks from a spectacular piece of birdseye maple - I have another M.92 SRC that needs wood. (I gave the walnut one to my dad this past fathers day - so now I need another gun!)
Toasted Birdseye from Nova Scotia, it was supposed to go to Fender (or Gibson? I forget) for high end guitars but got rejected because a couple of pieces had a couple of flecks in it!
He got 3 pallets of the stuff (1000bf or so) and only had 2 pieces that are thick enough for me to work with... but WOW!
I also picked up some walnut (20bf or so) on the next trip that makes the material on the walnut .44-40 look like fire wood!