So it doesn't "drift" at all over time? Like repeatedly putting a glass on and filling them? Are the magnets strong enough that you feel confident sitting a full beer glass on it?
It never has. When I first did it I put heavy weights on it, more than a filled glass weighs, and it didn't move.
And it hasn't drifted at all. That may or may not be related to the kind of paint I used--I used chalkboard paint which obviously isn't gloss-smooth. But those paper-towel-holder magnets are pretty strong, with a lot of attachment surface. As long as you don't go nuts trying to see how close to the edge you can go before it lets loose....
I don't know how much weight it will hold, I was only concerned whether a single full glass could be held. You're actually motivating me to see if it'll hold more......be right back....
OK, here's a pic showing it holding 7# 6oz of bullets. Five full pint glasses of beer would weigh less than that.
I rarely leave full glasses on the drip tray--I just fill 'em and immediately put them to use slaking my thirst.
Because if that's the case, I like this idea a lot, in fact I might consider this for the one I'm building now.
As much as I never had ANY problems with what I did ever failing- I did have a couple issues- the first is that you have to make sure before you attach the 3m- stickies and hanging clamps you have to put them all in a "level" line to make sure the drip tray is straight and true.
The second issue is you are committed to the distance between taps and drip tray, you can't really move it without removing the 3-m stickey stuff and putting fresh ones on.
It's no big deal most of the time- if you have the right distance... But after I built my keezer, and I had set my my distance for pint glasses, I ended up acquiring various cool taller glassware, including some really thin and delicate crystal Pilsner Flutes and this cool hand painted tall football themed beer glass that I like to make beermosas in on Sundays and it was awkward to use with those glasses, I couldn't sit them on the dray to fill them, and even just tilting them to fit and not wedge against the try itself I would end up spilling more into the dip tray than into the glass.
I could easily remove the drip tray, but then I'm dripping on the floor. LOL
With your design I can see just just sliding the diptray down a couple inches and sliding it back as needed.
The paper-towel-holder magnets are not really slidable. If they were, it likely would drift down over time. You have to remove and replace. I have a little mini-level I put on there to get close. They're like a buck at the dollar store. Usually I just do it by eye, aligning the top of the drip tray back with the keezer collar. Not a big deal to do.
As long as the tradeoff isn't stability.
Mine's stable. It's not quite as pretty as I'd like--I wish I had more....elegant-looking magnets holding the vertical part to the magnets stuck on the front of the keezer--but it works. I could have bought some powerful magnets from Amazon that would have looked nicer and worked as well, but....as it is, my friends are so amazed that I have beer on tap that they aren't focused on how the drip tray is affixed. Rather, their focus is on the faucet spouts and what comes out.
I want to note a couple more things....one is that it's really easy to remove it for cleaning. Of course, if I could hang it from screws it would be that as well, but I can't.
Another is the paper towel you see in the one pic above. I'd cleaned the tray prior to visitors, and to keep it pristine while I still drew beers for myself I put down a folded paper towel.
Wowee! It works wonderfully. The last couple drips are absorbed by the paper towel, the drip tray is unsullied by those drips, and the beer dries out in a couple hours. Doesn't look that great but for me, it's just fine.
And the third is to point out (for anyone else reading this, I think you have it figured out) that the way the paper-towel-holder magnets are working, they support the drip tray mostly from the bottom. The two circular magnets you see are just to keep it from tipping forward if I put a glass on wrong, and to hold it square. Most of the support comes from the bottom, not the top part.