need locking knob mechanism for a aluminium profile 1

So begins another round of Twenty (Or More) Questions.

Can you use a T-Nut?

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

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This is a Bosch or 80/20 or similar extrusion designed to take T nuts?

Use a T nut and clamp down on something that is attached to the board.

Hello,
As mentioned in above email Iam already using t slotted profile slider which is holding the board to slide over the P30x30 fath aluminium extrusion.
If at all I have to use the t slot nut to lock the knob at certain height. how to lock it. In the image the knob is fastened through the board using a jam nut.
A hole is drilled into the P 30x30 extrusion so that the knob shaft can sit into the hole to lock at certain height. when I have to slide it I need to ulock knob by rotating during that time jam nut and board are getting loosened. So exactly looking for an idea where the board can be held firm without getting loosened during unlocking or sliding.

Cheers,
Sarada Srirama (Saru)

You can drill holes in the profile - at the bottom of the T slot, then use a spring loaded retractable pin that can index on those holes. Depending on what size profile you are using, you can have a pin up to Ø1/4". Just be aware of bending loads on the pin depending on how much your door weighs.

Check out McMaster Carr or Carr Lane for spring loaded pins.

Kyle

Check and see if you already have "brake ready" linear bearings, if so
go to page 708 of the 80/20 online catalog.
Larry

Perhaps you need to explain what you mean by lock? Do you mean stay in place under friction only, or not move, short of breaking something?

If the latter, to what positional resolution do you need?

TTFN (ta ta for now)
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