Theoben Rapid Forum
Everything Technical About Rapid => Technical => Topic started by: Ca_Varminter on October 28, 2020, 08:01:32 PM
Something has always bug me even with my first MK II.
I like to adjust my bolt lockup to be on the tight side!
To ensure no air leaks...
Well even with grease and polishing, it would need to be adjusted for wear...
So I decided to try out a 3-piece Bolt Handle. It would incorporate
A rotating sleeve, to act ás a bearing.
So I started with my Titanium bolt handle I made..
(https://photos.imageevent.com/scl_electronics/gun/ultimaterapid/websize/New%20Titanium%20bolt%20handle.jpg)
I cut the stem off my Titanium Bolt on my lathe.
Then tap the body for 10-32 nf.
Next I cut a stub shaft out of S7 tool steel. Threaded it for 1/4-28 and 10-32.
Then I made rotating bearing sleeve out of S7 too.
Polished both the stub shaft, and the sleeve(inside and out), for a smooth fit and easy rotation.
(https://photos.imageevent.com/scl_electronics/gun/ultimaterapid/websize/20201028_121656.jpg)
(https://photos.imageevent.com/scl_electronics/gun/ultimaterapid/websize/20201028_121746.jpg)
Results so far is a superior smooth lockup, even having the probe adjusted on the tight side!!
Enjoy....
Stuart
Very nice idea Stuart. Like it.
Superb idea and workmanship, looks great too 8)
Well having a chance to play with my new Bolt handle design.
I decide I needed to modify the rest of my Bolts handles..
I use Tactical bolt handles use in Centerfire Bolt action rifles
(https://photos.imageevent.com/scl_electronics/gun/ultimaterapid/websize/MyBoltjpg.jpg)
So the Tactical Bolt knob has 5/16-24. So I had to fabricate a brass insert with 10-32 for the stem..
So the stem and bearing sleeve is made like my other one...Out of S7 tool steel.
Here is what it looks like....
(https://photos.imageevent.com/scl_electronics/gun/misc/websize/20201031_190931.jpg)
(https://photos.imageevent.com/scl_electronics/gun/misc/websize/20201031_191648.jpg)
Modding never stop during a Pandemic...
Stuart
Oops forgot a couple more views of my creation.....
(https://photos.imageevent.com/scl_electronics/gun/misc/websize/20201102_1358461.jpg)
(https://photos.imageevent.com/scl_electronics/gun/misc/websize/20201102_135826.jpg)
The brass insert, decided to mill a couple of flats. This should help the assembly of the Knob...
Stuart