Beam balance fine adjuster

index sitemap advanced
search engine by freefind
notepad Navigation & Acknowledgements

Beam balance fine adjuster

beam balance fine adjuster

beam balance fine adjuster: 2008-01-15.

Nikon Coolpix 8400

This is the cup-holder end of the beam-balance with the fine adjuster added. It is mostly made from a few aluminium extrusion offcuts, pop-riveted together. It makes the initial levelling of the balance easier and quicker; instead of trying to move the lead weight a tiny distance by hand, a slight turn of the knurled wheel moves the weight on its saddle in a much more controllable way. I happened to have in stock a piece of aluminium bar of the right sort of diameter already knurled, otherwise I'd have probably used brass (to avoid the tendency of aluminum-to-aluminium rubbing faces to gall on each other) as the adjusting knob. I just parted off a piece the right thickness to fit between 2 flanges of an extrusion, drilled and tapped it M6. That first extrusion was riveted onto another extrusion which was the right width to form a saddle on the beam (allowing for the rivet heads - that's why there's one apparently doing nothing at the left end of the saddle). A long M6 machine screw was fitted into a tapped hole in a piece of aluminium angle, and that was riveted onto the side of the beam. On top of the saddle I glued some emery paper face up to prevent the lead weight sliding around uncommanded.

left-arrowgo to previous picture page notepadback to journal pagenotepad go to next picture pageright-arrow
listgo to list of photo pages list
Return to Rowland's home page

This page last updated 2012-12-12. I try to make this page as accessible as possible, by adhering to HTML 4 standards. Valid HTML 4.01! Valid CSS!
I welcome comments on this website. However, because of the amount of spam it attracts, I no longer post a direct e-mail address on any page. Instead, please click here to contact me. You will have to confirm that you are human before the message will be sent on to me.