Wrench in a pinch.

M Carter

Member
Joined
Jan 23, 2013
Messages
2,147
Location
Dallas, TX
Format
Medium Format
Thought I'd share this, as I'm going through a lens repair in the MF thread.

I found that none of the tricks (rubber plug, rubber gloves, rubber bottle opener) could get a retaining ring to budge. This teardown's more of a learning experience and I didn't want to order a spanner and wait a week to get back to this. Two grip heads, two screwdrivers, and a 12" piece of 5/8 boom arm and... spanner!
 

Attachments

  • 2.jpg
    71.6 KB · Views: 391
OP
OP

M Carter

Member
Joined
Jan 23, 2013
Messages
2,147
Location
Dallas, TX
Format
Medium Format
It worked quite well - yes, a couple pounds of grip gear made it a little nerve wracking, as the ring surrounded a convex lens element and the whole thing was inside a steel barrel with little side clearance - so it was a little dicey lowering it in and getting it set. Breaaaaaaaathe, as my (yoga teacher) wife would say. But a little pressure and a tiny *jerk* and all was good.
 

Jim Jones

Subscriber
Joined
Jan 16, 2006
Messages
3,740
Location
Chillicothe MO
Format
Multi Format
I've used two blades like screwdrivers clamped in a vise, but your system lets one observe the placement of the screwdriver tips in their slots much more accurately.
 

Logan Becker

Member
Joined
Apr 12, 2017
Messages
73
Location
Sacramento, California
Format
Multi Format
If this is still relevant, just finished a repair on a camera body and to get the SS ring and advance lever off, required a spanner. I looked here: https://www.pentaxforums.com/forums...ticles/199396-spanner-wrench-substitutes.html
But if you happen to not find these substitutes a viable solution, the little handles that you stab into the ends of a corncob work almost flawlessly. If different sizes are required use pliers to widen or narrow their spacing. Probably not a workable tool for a lens but someone will likely find a way to prove me wrong
 

Sirius Glass

Subscriber
Joined
Jan 18, 2007
Messages
50,423
Location
Southern California
Format
Multi Format
Your inventiveness is wonderful.
 

paul ron

Member
Joined
Jan 22, 2004
Messages
2,709
Location
NYC
Format
Medium Format
need is the mother of invention. nice job with those traction bar parts.

oh let's not forget C clip and E clip pliers. they have them for inside and outside expansion as well as different sizes and for a few bucks more you can get them with changeable tips.

another suggestion... using a straight edge scrap metal. I have a set of custom sizes I cut for specific uses.

.
 
You must log in or register to reply here.
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…