I've watched this series countless times, and every cycle through, years apart, I gather new insights. My favorite that I've noticed is the attention to detail and future use, just because it's a prototype, doesn't mean it shouldn't look and feel like a finished product
Right?!?! Who'd ever think that ppl would find something like a component box sexy?!?! Haha!! That man is a flipping master. We're not worthy! We're not worthy! 🛐🛐
In aircraft sheet metal technique we use setback marking out multiple bends. Using your test strip you used for bending the lid, cut a test strip, say 100mm long using same (!!!) material as final product. Accurately mark a line at 50mm and and 90° bend with the required radius, exactly at the line. Now simply, with a vernier, measure length of leg to outside edge. It will be greater than 50mm, say 51mm for example. That means we have gained 2mm in the bend. Marking out a panel panel at say 100mm we draw a line. The next panel section after a bend is marked out 2mm overlapped at the 98mm mark. All the holes in each panel can be accurately marked out in their individually set back panels. The bend line is half way between the setback lines. The test piece needs to accurately measured, being bent with the same bending setup (with specified radius) to achieve this before final cutting. Works every time, for the past 50 years for me, ever since the aircraft sheet metal course was completed. Reliably used for U brackets to hold cable pulleys, etc. Flat panel marked, (pencil, not scriber!), drilled, cut, then bent to finished dimensions. These methods become important in aircraft sheet metal, particularly that a large bend radius is always used in the harder alloy materials, meaning we gain even more in bends than might be expected. If the final bend was 45° then you would halve the setback. This is much simpler than using charts, as we accurately account for our bending apparatus and material in one simple test. Naturally, use the chart to find the minimum bend radius for the material !
Fantastic series of 18! instructive videos. Much appreciated, much enjoyed. You should be much better known among the machinists on RUclips. Excellent work!
in Part 6 you told us about hydrocarbons and finishing for painting, wont touching the parts with your bare hands re-introduce oils and dirt to the surface?
+Felix Dietz Good point. On smooth parts indeed you have to be carefull and use clean cotton gloves. On sandblasted surfaces, because of the deep texture, you can touch them with clean hands as this will only contaminate the "peaks" of the texture. For more critical operations, such as plating, you can never touch the parts . They have to hang from a wire.
Going to binge watch the series, after finding this video in search. Why not form the gussets in the original pattern? They'd already be there, and only require one weld each.
These videos are brilliant. The little touches of experience and brilliance shine through. (I had to scroll back a huge way because I'd forgotten to subscribe, glad I re-found them)
+digitalradiohacker This is a pneumatic press, no power cord. If you don't press the pedal (air valve) nothing can move. Press moves fairly slowly. The CNC controllr only positions the back gage, has no control over the press.
Danny my friend, me being a son of a tinsmith myself, you - with your brilliant description - have made me feel nostalgia to the days when I myself built a sheet metal box for a transformer, with much less sophisticated tooling than yours, more than sixty years ago. Thank you so much and take care! Motty Ben-Shahar
sir, at 32:20, how do you introduce thread in sheet metal using a tap? does sheet metal provide enough area to introduce threads?have noticed in old enclosure of voltage stabiliser, they used a screw and instead of drilling holes in sheet metal the makers bent the sheet metal to provide more threads to hold the screw. thank you
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I've watched this series countless times, and every cycle through, years apart, I gather new insights. My favorite that I've noticed is the attention to detail and future use, just because it's a prototype, doesn't mean it shouldn't look and feel like a finished product
master class, i like the reflection of the end about extending you life time by no takeing screws all the way out jaja
The thing about Dan's shop is. I never know if he built the machine or bought it. WOW great toy's
Right?!?! Who'd ever think that ppl would find something like a component box sexy?!?! Haha!! That man is a flipping master. We're not worthy! We're not worthy! 🛐🛐
When he turns the box upside down, I finally understand where Berserk got his klangs from
I laughed so much when you talked about the captive screws.....Proper R & D and extending your life a few years. Same as exercise. That was great.
You can always tell when thought has been put into a product. It is also a lot easier to install parts with good quality.
In aircraft sheet metal technique we use setback marking out multiple bends.
Using your test strip you used for bending the lid, cut a test strip, say 100mm long using same (!!!) material as final product. Accurately mark a line at 50mm and and 90° bend with the required radius, exactly at the line. Now simply, with a vernier, measure length of leg to outside edge. It will be greater than 50mm, say 51mm for example. That means we have gained 2mm in the bend. Marking out a panel panel at say 100mm we draw a line. The next panel section after a bend is marked out 2mm overlapped at the 98mm mark. All the holes in each panel can be accurately marked out in their individually set back panels. The bend line is half way between the setback lines.
The test piece needs to accurately measured, being bent with the same bending setup (with specified radius) to achieve this before final cutting. Works every time, for the past 50 years for me, ever since the aircraft sheet metal course was completed. Reliably used for U brackets to hold cable pulleys, etc. Flat panel marked, (pencil, not scriber!), drilled, cut, then bent to finished dimensions.
These methods become important in aircraft sheet metal, particularly that a large bend radius is always used in the harder alloy materials, meaning we gain even more in bends than might be expected. If the final bend was 45° then you would halve the setback.
This is much simpler than using charts, as we accurately account for our bending apparatus and material in one simple test.
Naturally, use the chart to find the minimum bend radius for the material !
I love your comment at the end, I think I've found a way to extend my life
Videos made in 2012, published in 2013. I’m watching In December after Christmas 2019
Dan Gelbart: extending lifes with slots and keyholes since 2013
So,
beige is beautiful
you save on brown paper by vacuuming it
and you live longer by using slots and key holes
Fantastic series of 18! instructive videos. Much appreciated, much enjoyed. You should be much better known among the machinists on RUclips. Excellent work!
A master craftsman. Yet, I do cringe every time he reached through he power press dies.
A slot on one side would have helped alleviate bending tolerance concerns as well.
Correct. That's what I did on the cover (watch last minute of video), but sometimes you can't : if you use countersunk screws, for example.
I could listen this man per hours. It's a mesmerizing pleasure.
in Part 6 you told us about hydrocarbons and finishing for painting, wont touching the parts with your bare hands re-introduce oils and dirt to the surface?
+Felix Dietz Good point. On smooth parts indeed you have to be carefull and use clean cotton gloves. On sandblasted surfaces, because of the deep texture, you can touch them with clean hands as this will only contaminate the "peaks" of the texture. For more critical operations, such as plating, you can never touch the parts . They have to hang from a wire.
Going to binge watch the series, after finding this video in search. Why not form the gussets in the original pattern? They'd already be there, and only require one weld each.
They will need an offset bend to keep side flat, but for thin stock it is OK.
These videos are brilliant.
The little touches of experience and brilliance shine through.
(I had to scroll back a huge way because I'd forgotten to subscribe, glad I re-found them)
Excellent video. Thank you very much for sharing your knowledge with the rest of us.
"I am now telling the computer EXACTLY what it can do with a lifetime supply of chocolate!"
Wow! I would not be happy seeing someone putting their digits inside the die whilst the press is live!!!!
+digitalradiohacker This is a pneumatic press, no power cord. If you don't press the pedal (air valve) nothing can move. Press moves fairly slowly. The CNC controllr only positions the back gage, has no control over the press.
Danny my friend, me being a son of a tinsmith myself, you - with your brilliant description - have made me feel nostalgia to the days when I myself built a sheet metal box for a transformer, with much less sophisticated tooling than yours, more than sixty years ago. Thank you so much and take care! Motty Ben-Shahar
Hi Motty, so nice to hear from you. Dan
Wonderful shop and machines, but no aprons. Your wife must be a magician with laundry.
What is the brand name of spot welding sir I.... Capacity of the spot welding also....
Home made.
Now I know how to extend my life on the quick. Thanks Dan.
An Albrecht chuck on a hand drill.... nice! Brilliant education. Love the A-Z instruction.
Another fantastic mine of information. Thank you very much for making this video and series
What a life.
Has to be the cleanest machine shop ever.
Whenever I'm silly enough to think about making something a little complex I just have to recall his Weiler CNC lathe in the background.
Woow very nice job!!! You are a Master!!! Could you please share the brand and model from your brake? Thanks a lot!!
+Marco Vergara www.atekcorporation.com/bantam/bantam.htm
I forgot they made pneumatic brakes.
Every train in the world. ;)
@@lekoman I meant a pneumatic press brake.
Slots and keys = eating healthy and exercise .......:D .............[orders pizza]
Very captivating. Thank you. 😊
... talk about high information density! ...
What a fantastic engineer Dan is! I love the videos. Your passion shines through Dan! Keep up the excellent work!
The knowledge is great. But the camera standing 2 km away from the action is really frustrating
Thank you for the video! very helpful.
Wonderful video.
nicely done. thanks
Es ist wunderbar ,von einem Meister zu lernen ! Danke !
Master
sir, at 32:20, how do you introduce thread in sheet metal using a tap? does sheet metal provide enough area to introduce threads?have noticed in old enclosure of voltage stabiliser, they used a screw and instead of drilling holes in sheet metal the makers bent the sheet metal to provide more threads to hold the screw. thank you
The tap is just to clean the welded nuts, see 22:45.
+Dan Gelbart Pardon me sir, I saw the video in parts with a time interval between them. thank you
Werry cool Press brake Wat brande is it
Bantham