Spacer changes on a 707 sequel

Keyman, I agree w/ you-- unless I was sending them to someone I knew well, I wouldn't send an altered s'off like this for client install. Crooked/blade chips-- SOL.

Also as I think about it threading not an issue here. If 707s have single frame screws passing thru, unthreaded would work too (and in fact it's easier to get liners mated w/ scales here, it's automatic-- w/ threading, you sometimes have to fiddle w/ it a bunch). But s'offs made specifically for knives universally threaded in my exp. Spacers (unthreaded) that are avail are made for gen'l comm'l use, and their widths (1/16th" progression) reflects that.
 
ryxlyx said:
Just dawned on me what I'd do-- w/ a blade that WON'T fall so far so as to contact the frame screws, I'd buy/fashion a simple 3/16" THREADED s'off to the right width. Then I'd start flatsanding one side of it (sanding parallel w/ the hole)-- I'd sand till I literally broke thru to the internal threading (the drilled hole). Installed, the HIGHEST point, w/ the sanding faced into the blade edge, is now the threads-- which you're saying doesn't contact the blade. You don't need 360-degree base contact on these things, all you need is something that won't collapse under pressure. Shouldn't show, unless you looked for it between the liners.

A little extra time, but I'll guarantee it'll work.
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I like your idea, only mode I would make would be to use a triangle file and create a channel or notch. Should not be necessary to flatten the whole side, just make a notch for the blade.
 
JNewell said:
The deeper belly on the 707 could well be an issue. On my 705s I used a .140 standoff. Benchmade says both have the same thickness bladestock, so assuming the washers are the same (which seems safe), that's the thickness you're looking for.
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Benchmade changed the washer on the 707. The 705 orginally had the oldschool nylon washer, the 707 uses the thinner bronze phospher washers. The 707 has a thinner backspacer as a result.

Pulled out a standard 707, and a 705BW took some measurements


707 : space between the liners is 0.1260" , liners measure 0.390" each, and the thickness of both washers is 0.0195" . Blade measures 0.0990 at the pivot
705 : space between the liners is 0.1470", liners measure 0.635" each, and the thickness of both washers is 0.0500" Blade measures 0.0975 at the pivot

ETA : I just put a spacer/standoff in my 707, the blade does not touch. At least with this blade. Is the 0.156" standoff part # STD0F. Of course you need to grind it down from a 0.156" thinkness to the 0.1260" thickness to fit between the liners.
 
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JNewell said:
Yes, but not from Benchmade.

Threaded/not makes no difference IMO (unless the threads prevent reassembling the knife, in which case you'll have to bore them out).
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As in a spacer that needs not be modified to fit or some that can be filed an custom fit?
 
bottom.feeder said:
Sooo... There are production standoffs?
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Not on a 707 that I am aware of. Both the 707-701, and the 707-702 came with the standard black spacer. The 705 Forum knife, and the 705-400 both came with factory standoffs. However they do not look like they would work on a 707
 
Edit: this post was wrong, see correction below - I have two 705s, one purchased earlyish after introduction and one very late, and both have bronze washers. It's obviously hard to date knives exactly. Do you have more information about 705s with nylon washers?

d_clark said:
Benchmade changed the washer on the 707. The 705 orginally had the oldschool nylon washer, the 707 uses the thinner bronze phospher washers. The 707 has a thinner backspacer as a result.

Pulled out a standard 707, and a 705BW took some measurements


707 : space between the liners is 0.1260" , liners measure 0.390" each, and the thickness of both washers is 0.0195" . Blade measures 0.0990 at the pivot
705 : space between the liners is 0.1470", liners measure 0.635" each, and the thickness of both washers is 0.0500" Blade measures 0.0975 at the pivot

ETA : I just put a spacer/standoff in my 707, the blade does not touch. At least with this blade. Is the 0.156" standoff part # STD0F. Of course you need to grind it down from a 0.156" thinkness to the 0.1260" thickness to fit between the liners.
Click to expand...
 
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d_clark said:
ETA : I just put a spacer/standoff in my 707, the blade does not touch. At least with this blade. Is the 0.156" standoff part # STD0F. Of course you need to grind it down from a 0.156" thinkness to the 0.1260" thickness to fit between the liners.
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Thank you for all your efforts & the part number d_clark!
It seems as though it would still be a good idea to hand fit this part.
To the knife in question, that is.
 
Well if .126" is needed, you're in luck! And BTW I think the channel/notch idea a good alternative, but make sure your cut is wide enuf to account for potential blade slop if the pivot's loose.

McMaster-Carr offers an unthreaded stainless spacer 3/16" OD, drilled for #2 screw, 1/8"W-- which equals .125". Part #92320A686, $1.56 each. No threaded options at 1/8".

The fact that it's .125" rather than .126" shouldn't be an issue. I've run up to 25 mil oversize in an 805 (for flare), smooth. I've also found .1870" ss s'offs made specifically for knives (w/ a supposed tolerance of plus/minus .0005") to run .1855" to .1888"-- a 3.3 mil spread.
 
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JNewell said:
I have two 705s, one purchased earlyish after introduction and one very late, and both have bronze washers. It's obviously hard to date knives exactly. Do you have more information about 705s with nylon washers?
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When Benchmade made the change from nylon to bronze washers, a lot of folks over at Benchmade.com sent their knives in for upgrades.

I pulled all of my 705's out. All 3 of my 705BWs have bronze washers, my 705SBT-04 has bronze washers. My 705SBT, and my Forum knife have nylon washers. All of these have thicker washers then the 707.
The nylon washers are the same as those found most old Benchmade's. I also have them on my 814T, and 812.

It would appear that Benchmade made the change from nylon to bronze, then to the current thinner bronze.
 
Seeing beats remembering - I took them both apart and both have Nylatron washers - that includes an early 705 ATS-34 and a late 705BK 154CM...and while the 705BK was bought around the time the knife was disco'd, it could have been on the dealer's shelf for years, so who knows when it was made (though obviously after the change from ATS-34 to 154CM).

That does mean that the standoff I referred to before will fit the Nylatron washer 705s.

Sorry for the confusion......we now return you to the thread...

d_clark said:
When Benchmade made the change from nylon to bronze washers, a lot of folks over at Benchmade.com sent their knives in for upgrades.

I pulled all of my 705's out. All 3 of my 705BWs have bronze washers, my 705SBT-04 has bronze washers. My 705SBT, and my Forum knife have nylon washers. All of these have thicker washers then the 707.
The nylon washers are the same as those found most old Benchmade's. I also have them on my 814T, and 812.

It would appear that Benchmade made the change from nylon to bronze, then to the current thinner bronze.
Click to expand...
 
Yes-- hit "18/8 ss unthreaded" that'll take you to 3/16" OD, they're there.


One caveat: I still don't know whether 707 has one or 2-screw attach. Unthreaded spacers will work ONLY if there are single frame screws threading into the far liner (like 520/525). If 707 has a TWO-screw attach (like 805/806) only threaded s'offs will work.
 
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It's a single screw, straight through the handle, to captive nut that's pressed into the opposing scale.
Sounds like Part #92320A686 would be perfect.
Thanks again ryxlyx!
 
I got somed spacers from the same place as was suggested earlier in this thread by ryxlyx.
Part# 92321A006
Thanks for all the info and help guys!
I thought I'd throw a couple of pics on here for reference.
These are Black G10, Med. texture peelply with BM's hardware and the new spacers.
DSCN5891_zps9d578f04.jpg

DSCN5895_zps8b9be92b.jpg
 
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