Author Topic: Sheet Metal Brake and 3d Printer.  (Read 5383 times)

Offline BillTodd

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Re: Sheet Metal Brake and 3d Printer.
« Reply #150 on: November 08, 2018, 03:35:40 AM »
Excellent thread.

Does anyone know of great uses for 3d printed stuff ?
Commercial ?

Well the break through is starting to happen in the aircraft world. Titanium is expensive and a sod to machine* , so 3d printing titanium parts prior to machining (like castings) instead of machining from stock,  saves a huge amount of time and money . There are now many machinery maker adding  laser sintering  into their cnc workstations

Printing is also having an impact on the design of parts. The use of "organic" designs that would be difficult or impossible to machine allow parts to me made lighter without loss of strength ( imagine a simple right angle bracket , replaced by a 3d structure that has finger-like supports only where needed).

Bill


* The motorsport division of the firm I work for make parts for the Redbull F1  cars , one design of brake disc carrier (imagine a thing the shape and size of a soup bowl but with more holes than metal) was taking 80 hours to machine and 90%+ of the material was thrown away.
« Last Edit: November 08, 2018, 04:02:09 AM by BillTodd »
Bill

Offline AdeV

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Re: Sheet Metal Brake and 3d Printer.
« Reply #151 on: November 08, 2018, 04:23:03 PM »
Bill,

I went to the Racing Car show at the Birmingham NEC (that's Birmingham UK... not AL) a few years back, and got talking to a company that made laser sintering 3D printers. At the time, they could be ordered for titanium or aluminium (I'm not sure if the same machine would do both?). The machines were quite reasonably priced, I thought - around 10,000 or (at the time) about $16,000. The titanium powder to fill it, however... well, it was considerably more than the machine!

I'd love to get hold of one myself; I think it could pay its way back in the motorsport industry in very little time...
Cheers!
Ade.
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Offline S. Heslop

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Re: Sheet Metal Brake and 3d Printer.
« Reply #152 on: November 09, 2018, 11:26:11 AM »
Only 10,000? Does that include the laser?

Offline AdeV

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Re: Sheet Metal Brake and 3d Printer.
« Reply #153 on: November 10, 2018, 05:22:31 AM »
Only 10,000? Does that include the laser?

I've been thinking about it... I  may be out by a factor of 10.... it was a few years ago!
Cheers!
Ade.
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Offline S. Heslop

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Re: Sheet Metal Brake and 3d Printer.
« Reply #154 on: November 17, 2018, 12:53:10 PM »


Been up to this the last few days. It's relatively simple but it being so large made it a chore. It's not entirely square but it's close enough. Just need the plexiglass to finish it but i'll probably put the machine in first just to make sure there's clearance for all the moving parts. Little worried the hinges and catches might get in the way - it's a little on the small side just so I could get it all out of one sheet of plywood. 12mm plywood was also a poor choice as it's a little on the flexible side too. I'll probably need a handle so I can lift the door up into the top catch. Toggles would've been the better choice, and I might have to go that way if things interfere. Some bracing might also help, especially on the door, but i'll need to see where I could fit it.

So for the controller board. I was all set to buy the Duet Wifi at 120, but it turns out they don't include VAT on their website. Or shipping. So it went up to 150, and now i'm back to thinking if it's worth giving the MKS Sbase another shot. I've had a look at the setup procedure for the Duet and it's as complicated and stupid as any other board. What's wrong with 3d printing people... Either way i've ran out of time to mess about with this stuff so i'll possibly take a break once it's in the enclosure.

Offline S. Heslop

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Re: Sheet Metal Brake and 3d Printer.
« Reply #155 on: November 18, 2018, 07:28:48 AM »
Whoa nelly. Turns out that hump in the middle made it impossible to fit without partially disassembling the machine.



I remember I realised that when I was first drawing the box up - I made it extra tall so I could get it in. But when trying to fit the panels into a single plywood sheet I forgot all about that.


This is where the laptop will go. It turns out laptops count as a 'horizontal surface', and like any horizontal surface it collects clutter. This is more of a storage solution than anything else!


Also as feared the catches interfere with the drag chain. Still thinking what to do. The obvious thing would be to move them to the top and bottom but they're here to help keep the front flat for the sake of sealing the box. The hinges just clear on the right hand side so I can't move the whole thing further right, and I can't move the chain any further back. Plus the chain is flush against the side. No room to brace the door flat there internally... So I guess I might have to go with an external toggle or maybe a threaded insert in the side and a screw to pull the door in.

Oh yeah also gotta make some taller feet so there's clearance for airflow.

Offline AdeV

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Re: Sheet Metal Brake and 3d Printer.
« Reply #156 on: November 18, 2018, 08:04:00 AM »
Just thinking out loud here: Could you adapt the bracket that's mounting the catch so the screws go backwards instead of sideways; then rout a notch out of the side wall and screw the bracket into the back of the notch, such that the rollers are in the same position, but now moved out of the way? Admittedly, it's not going to win any beauty contests, but it would be the quickest solution.

Another option would be some kind of lever latch, again with the pin embedded in the side wall & a slot for the tongue to engage. Either make some kind of spring-loaded push-pull tongue (triangular shaped, so it could force its way past the pin), or just a hook shape, and have a handle on the front to open it. Quite a bit of fiddly mechanical workings out to do for that one though... but it would look tidy.
Cheers!
Ade.
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Offline S. Heslop

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Re: Sheet Metal Brake and 3d Printer.
« Reply #157 on: November 18, 2018, 08:35:13 AM »
I just realised I could totally brace it on the front with a big beefy and tall handle. Then I can just stick with latches on the top and bottom, out of the way of the chain.

Offline AdeV

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Re: Sheet Metal Brake and 3d Printer.
« Reply #158 on: November 18, 2018, 09:16:37 AM »
Excellent idea - it'll look cool too!
Cheers!
Ade.
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Location: Wallasey, Merseyside. A long way from anywhere.
Or: Zhengzhou, China. An even longer way from anywhere...
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Offline WeldingRod

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Re: Sheet Metal Brake and 3d Printer.
« Reply #159 on: November 19, 2018, 05:08:55 PM »
Nice enclosure!
I used a pair of.magnets to latch mine.  You could rout them in to the two surfaces.

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