toxo

I was thinking about looking at some of the principles. Maybe they don't have to be metal. I'm not sure what you want this collar to do but off the top of my head imagine the main part of this hook to be a stiff piece of leather folded back on itself. now imagine the main leash just attached to the oval retainer. Now imagine a short length of bungee rubber attached to the eye and sewn onto the main leash in such a way as to leave an amount of slack in the main leash when the rudder is taut but not pulled. The idea being when walking the dog the rubber is taking the strain. When you want a quick release you pull on the leash, stretching the rubber enough for the main leash to slip the oval to let the dog run free. It's a bit rough but I've only just thought of it and merely offered as an example of what might be done.

It's just a roller with a shoulder at each end that sits in a trough. If you don't know anyone with a lathe it wouldn't be hard to dowith a drill and a small grinder and a file. I can provide the measurements.

I remembered the name Pelican hook from my sailing days long ago. Might give you some inspiration. https://www.google.com/search?rlz=1C1AOHY_enGB783GB783&q=pelican+hook&tbm=isch&chips=q:pelican+hook,g_1:quick+release:Xm_qFvuBYcc%3D&usg=AI4_-kQc_4kihO_CWqDPPJAgUaUoACQ8bg&sa=X&ved=2ahUKEwjuoIu70NrvAhWLa8AKHRXnD9IQgIoDKAB6BAgFEAY&biw=1600&bih=813

Exactly. It makes no sense to have one rule for quali and then change it for race day but it was what it was so why allow Hamilton to do it around 30 times during the race and then was told to stop doing it?

I started my business with nothing.... and I've still got most of it!

What a race that that turned out to be. As a Hamilton fan I was getting despondent with his tyres going off and Verstappen catching him with time to spare. Then Verstappen overtook him but had to give the place back because he'd exceeded track limits to do so and Hamilton goes on to scrape a win. The thing is, Hamilton had exceeded track limits many times earlier in the race until Mercedes were warned not to do it. The difference being that when Hamilton did it he wasn't gaining a place. Surely this needs tidying up. Supposedly there's a different rule on track limits for qualifying and racing. But if it's allowed on race day why was Hamilton warned to stop doing it? What say you?

Welcome Klara. You're doing well so far. Maybe look at coursing dog collars like Greyhounds, lurchers etc for inspiration. They use quick release all the time.

I've seen that done before. Never realised how quick and handy it would be. Nice one.

I use a Scharfix lookalike in black. Cost me around £90. When I first tried it I almost threw it in the bin but as I got used to it'd little foibles I found it to be quite capable in a limited way. It's ok with veg tan types but I found it stretched the edge on softer leathers. Then I found a little trick that all these type of skivers can benefit from. Say you want a 20mm skive. Using a smallish roller start off at the 20mm mark and work outward. When you get to the edge you'll have a small area left meaning less pulling pressure and less stretch. You'll have to play around a bit. You may have to start at 25mm to get the best result. Of course you need a sharp blade so here's another trick. The blades come in different thicknesses and the thicker ones can be resharpened but I couldn't find any at a decent price until I found these, https://www.amazon.co.uk/gp/product/B07BH7CNC3/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1

Not too squishy.. Defo not hard.

I'm no expert but I know some just trap both threads under the presser foot in the down position and don't hold it at all. Don't know if you can do it with all machines.

Nice job. He's gonna love that.

Welcome and enjoy the forum. There is much to be learned here.

Welcome. Get some layers of foam under that granite.

Nice job Alberto. Nice and neat around the corners.

If this is doable as a retro fit and is robust and consistent you should expect an offer for the patent from every servo manufacturer sometime soon.

That thread is never going to sew consistently. In fact I've never seen bonded nylon that looks like that. Maybe you're winding it on the bobbin in a strange way or someone switched labels on you.

Where's that "like" button again.

The needle has to be inserted with the long channel on the left and the shorter scarf on the right, The thread has to be inserted from left to right.

Awesome work. They're certainly not gonna wear out any time soon.

All you need to emboss that size stamp is an arbor press. Check out my post on DIY hot foil. My arbor press is now able to do all the rivets/ snaps etc but also clicker duties. On the bigger size dies I just walk them around. And now it will emboss names and stamps and hot foil as well. And it's only a 1 ton press. I'll update the thread soon.

You're all the wrong way round. If the brown is the underside either the top tension is too loose or the bottom tension is too tight. When adjusting the top tension only a turn or two at a time. Sometimes just a half turn will make the difference.

The spring on my 69 wasn't in the best of condition and college didn't have one. Folker suggested the spring on my Durkopp 239 would psobably fit and if so I could order a Singer one but I couldn't get the damn spring out of the Durkopp I was pulling as hard as I dared but I didn't want to ruin it. The 69 worked fine until it had done around 3/4 inches of sewing and then it would miss a stitch. I reasoned that the spring was catching somewhere so I got the needle nose pliers on the job to ensure it wasn't touching anywhere. Job done. No more missed stitches.

I built a large work table outside my shed and I thought I'd put enough braces in to hold a battleship BUT it has a full size vice on it and has seen some serious pushing and pulling and now it's a bit wobbly along the length. If you want to go with ply 3/8th is plenty, even 1/4. But if you don't see any serious action on it just a couple of diagonals from the leg/shelf to the center in 2x2 3x2 4x2 will do the job whatever you have handy. Of course if it's going against the wall, a couple of rawlbolts will do it. You've done an excellent job Rob, I just wouldn't like to see it loosen up for the sake of a little bit extra.

There are various ways to brace it. The strongest of course would be a full sheet of ply covering the whole back but that's not an option if it's gonna be an island. depending on how you see your storage you could put your base shelf in and then run a sheet of ply on top of that down the middle which would give shelving on both sides. Even small diagonals half way or even two thirds up each leg would help a lot and not impede your shelf space too much.