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Message from discussion Batch buy of L6470 Stepper Driver Breakouts
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Robert  
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 More options Sep 30 2012, 3:24 am
From: Robert <pins...@gmail.com>
Date: Sun, 30 Sep 2012 00:24:47 -0700 (PDT)
Local: Sun, Sep 30 2012 3:24 am
Subject: Re: [london-hack-space] Re: Batch buy of L6470 Stepper Driver Breakouts
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Because most people use steppers on 3 axes machines, so having 3 on a
single board (daisy chained SPI or no) simplifies some of the connections
for power as well as the mounting of the board rather than boards. Of
course you do have the problem of if you need 4 you need to make do with 3
or 6, but possibly a single chip and a triple chip boards? Either way it'll
all be pretty good.

On Saturday, 29 September 2012 13:07:28 UTC+1, Solexious wrote:

> On 29 September 2012 11:27, Robert <pin...@gmail.com <javascript:>> wrote:

>> I really think you'd be better served putting 3 on a board rather than
>> making them separate.

> Why?

>> Will you be using 1oz or 2 oz copper? Also will you be getting the chips
>> as Farnell don't sell them?

> Yes I will be getting the chips.

>> Have you taken a look at the ST demonstration boards, they seem to do
>> what you're currently proposing so it may be work "borrowing" a few ideas
>> off of them.

> Yes, Ive seen those boards and their schematic. As Adrian has pointed out
> there are big flaws in how they are laid out.

> Best,

> Sol


 
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