Bend the PCB

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#1
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Hai all

 

In tropic countries trees grow every years compared at Subtropics which had seasons that made tress "stop tp grow".

Here Bamboos growth very well.

 

Using bamboos with head plastic hand spray as dop for "box or casing" made low cost investment.

 

Could I ask questions?

How to bend the pcb plate ? which tools that I must used ?

 

any info very appreciated.

 

pcb plate

became this form..

bent pcb

Regards

Tiro

Last Edited: Wed. Mar 29, 2017 - 04:40 AM
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From pcb plate to half circle of less

 

Tiro

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One way is by 0.125mm thick fiberglass composite :

PCB "Fab-In-A-Box" ... The 8min circuit board system

Flexible PCB

http://www.pcbfx.com/main_site/pages/products/flex_pc_board.html

 

"Dare to be naïve." - Buckminster Fuller

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Just google flexible pcb.

274,207,281-1 The largest known Mersenne Prime

In that awkward stage between preschool and death

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More specifically helpful (I just ordered boards from them, although mine aren't supposed to be flexible (I guess one could flex them, if you tried hard enough... (once))).

 

https://www.pcb-pool.com/ppuk/in...

 

Have fun,

 

S,

 

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A local PCB fab's flex product :

http://dragoncircuits.com/products/flex/

 

"Dare to be naïve." - Buckminster Fuller

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Vinyl is mentioned for an inexpensive prototype flex printed circuit :

Adafruit Industries – Makers, hackers, artists, designers and engineers!

Making a Flexible PCB with Pyralux #WearableWednesday

by Pat Starace

https://blog.adafruit.com/2015/02/11/making-a-flexible-pcb-with-pyralux-wearablewednesday/

 

"Dare to be naïve." - Buckminster Fuller

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There are some PCB printers though the price is such would be more likely at a makerspace.

BotFactory Squink can print onto transparency film in addition to Kapton (10mil (0.25mm) width, 10mil (0.25mm) gap) :

https://www.botfactory.co/

via

http://www.edn.com/electronics-products/other/4443097/Desktop-PCB-startup-on-track

 

Edit : spec

 

"Dare to be naïve." - Buckminster Fuller

Last Edited: Thu. Mar 30, 2017 - 07:00 AM
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Nice info.

If there's cheap bend pcb plate then will order after budget ready.

Regards
Turo

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Hai Again..

What I'm looking from plate pcb to half circle pcb.

Many Thanks

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No - you can't do that.

 

Standard "plate" PCB material is not flexible - you cannot bend it.

 

That's why "flexible PCB" is a distinct material & distinct process.

 

I guess you might fight find places that can make curved laminate; but that would be a specialist process and, therefore, expensive.

 

Try googling, "curved PCB" ...

 

Rather than have a single curved PCB, you could make a number of flat PCBs into a "polygon" ...

 

Or just put a flat PCB across the diameter of the tube - rather than curved around the edge?

 

 

Last Edited: Fri. Mar 31, 2017 - 10:04 AM
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Thanks For Info.

What I needed was curved PCB plate.

Regards
Tiro

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Can you get curved components?

pragmatic - dealing with things sensibly and realistically in a way that is based on practical rather than theoretical consideration.

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What about pick and place machine or soldering system for curved PCB?
 

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Will the PCB be "flexed" while in use, or do you only need it be curved (non-flexable)? 

Will the components be mounted on the inside curve or the outside of the pcb? 

Jim

 

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Hai

All

 

I tried with low cost PCB plate here(the thin one).

Unfortunedly couldn't bend.

 

Regards

Tiro

 

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I wrote:
Rather than have a single curved PCB, you could make a number of flat PCBs into a "polygon" ...

 

Or just put a flat PCB across the diameter of the tube - rather than curved around the edge?

 

Or just do something like this:

 

Image result for pcb in curved case

Image result for pcb in cylindrical case

Image result for pcb in cylindrical case

 

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The OP wants to make enclosures from bamboo, because it is cheap. However, trying to bend PCBs to fit in a curved box is futile and never going to work.

 

A practical approach is to make the bamboo fit the PCB, there is no reason a bamboo box has to be curved, https://www.google.co.uk/search?q=bamboo+box

 

One of many examples :

Bob.

Last Edited: Mon. Apr 24, 2017 - 10:29 AM
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donotdespisethesnake wrote:
trying to bend PCBs to fit in a curved box is futile and never going to work.

"Never" is a very long time - but it is certainly going to defeat the object of being cheap!!

 

Hence I gave some examples of fitting flat PCBs into curved boxes

 

A practical approach is to make the bamboo fit the PCB, there is no reason a bamboo box has to be curved

Very true - though there will be additional cost in making the box...