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I've got a ~3m wide heavy fabric screen mounted on a 2" mild steel pipe that sits on pillow block bearings about 2.5m above ground. I've got a sprocket attached to one end via a taper lock bush. I was planning to motorize (or build a hand crank) to make it easier to raise/lower the screen down...

I'm mounting a heavy item and need to install a few anchor bolts in my garage wall (plaster over breezeblock) 2016 new build in England. And I need to do it in a specific location - and of course, that's 12cm from a wall corner, so within a safe zone. Albeit, given the location and the fact it...

My garage door rail (central one, as there are side ones as well) is a few feet longer than it needs to be - see picture of how far the motor is back from the open door. Also included a picture of the chain for info. For use of the internal space, I'd like to shorten the rail. I'd probably...

Ok, update - finally found a joist! mixture of issues, in part because to hit wood, I've got to drill 50mm into the ceiling. Previously, I was drilling until I felt free air, and pushing the drill bit up further and feeling nothing. That bit was probably 40-45mm. I swapped to a longer bit (...

wood floor above and trying to get up a board is above my skill level!

Exactly my thought as well, but I've tried drilling into those lines and am not hitting any wood. So either 1. JobAndKnock is onto something and I'm drilling through the metal top hat and just not feeling much of a difference vs the plasterboard 2. RandomGrinch is onto something and I'm not...

Interesting, another potential scenario to consider - not quite sure how to diagnose it though!

ah, hadn't come across metal framed ceilings before - are they commonly used in new builds in the UK? (this is a integral garage sitting below a living room). And if that is the case, is it likely that the joists are above the insulation, with the metal framing below it? If so, it could...

thanks - I'm definitely getting through plasterboard and into insulation, I must be just missing it. Doesn't sound like there is any likely reason for magnets to find something that isn't attached to a stud? Will have another go tonight!

50mm from the plasterboard? Or 50mm from the breezeblock and I need to adjust for dot & dab and plasterboard?

I'm trying to find the ceiling joists in my garage (which is integral, sitting below our living room). And after failed stud finder attempts, have gone with the strong magnet approach. Which immediately seemed to work...but then I drill up and get through the plasterboard and then...nothing...

Thanks - have looked around at tubular motors and with a smaller diameter pipe requiring a higher torque motor - the gear-based approach will probably be half (or even less) of the motorised approach. We're not talking huge amounts either way. Depending on how annoying the 'chair + hand'...

Amazing, exactly what I needed, thanks so much!

Thanks John - all the affordable taper locks I'm seeing require a 'key' - the metal piece that fits into a groove in the pipe. I'm guessing for my use case, the lack of a key wouldn't actually be a problem since I'm not trying to spin this thin at machining speed? Just wondering if the key is...

It is actually an impact screen for a golf simulator. So without spending thousands of pounds, you can't get a pre-made one!

I'm attaching a projector screen to a 2" steel tube, held by pillow block bearings. This will allow me to roll the screen up when not in use. The tube will be high enough that I can't manually roll it without standing on a ladder or chair. I may eventually automate the rolling/unrolling with...

Not sure I follow - you mean cut through the second plasterboard, then if no joist, put a board behind it so a connection to that board would sandwhich the two lots of plasterboard together?

ooh, nice idea with the phone mount magnet - hadn't thought of that and have one lying around!

Ah, that would make sense then. Thanks for that. So I'll keep going and see if I can find a joist to work with somewhere.

So, I'm planning to hang a big projector screen (3m x 3m) - with pole, screen, fixing, I'd estimate 10-15kg - across my garage (for an indoor golf simulator). One one end of the 3m gap I've got plasterboard over breeze block, so I'm fine there. On the other side, the garage ceiling drops down...