Batch buy of L6470 Stepper Driver Breakouts - London Hackspace

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Message from discussion Batch buy of L6470 Stepper Driver Breakouts
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From: Nick Johnson <arach...@notdot.net>
Date: Wed, 26 Sep 2012 14:59:58 +0100
Message-ID: <CAMpk+vBTGgVYJEogb6Er5_zTeb94nfV9Ggn5RRZQrp2Os+D...@mail.gmail.com>
Subject: Re: [london-hack-space] Batch buy of L6470 Stepper Driver Breakouts
To: london-hack-space@googlegroups.com
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I'm interested, though I'd find 2 axis boards more useful. Is there
substantial shared overhead that makes it simpler or cheaper to make
multi-axis boards rather than smaller single-axis ones?

On Wed, Sep 26, 2012 at 12:37 AM, Charles Yarnold
<charlesyarn...@gmail.com>wrote:

> Hello all,
>
> One of my upcoming projects is making my own pick and place and on my lis=
t
> of things to build for it are stepper motor drivers.
>
> After asking around I have settled on the L6470 stepper driver, it seems
> an awesome chip. It works over spi and all you need to do is tell it wher=
e
> to go, it handles driving the stepper for the correct number of steps,
> acceleration, deceleration, correcting for missed steps, stall detection,
> homing switch control and a whole lot more.
>
> You can see more here: https://www.sparkfun.com/products/10859
>
> The snag is I need 10 of them, and at ~=A325 a pop its not cheap, so I'm
> going to make my own breakouts.
>
> Its looking like I can get the price down to ~=A311 each driver, with boa=
rds
> containing 3 and 4 drivers on each (3 drivers on a board being ~=A333, 4
> being ~=A344).
>
> Would anyone else be interested in buying some of these if I was to make =
a
> surplice, how many would you be interested in? If we get interest I will
> get a fixed cost and pop up a wiki page for orders.
>
> Hugs,
>
> Sol
>

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I&#39;m interested, though I&#39;d find 2 axis boards more useful. Is there=
 substantial shared overhead that makes it simpler or cheaper to make multi=
-axis boards rather than smaller single-axis ones?<br><br><div class=3D"gma=
il_quote">

On Wed, Sep 26, 2012 at 12:37 AM, Charles Yarnold <span dir=3D"ltr">&lt;<a =
href=3D"mailto:charlesyarn...@gmail.com" target=3D"_blank">charlesyarnold@g=
mail.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=
=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

Hello all,<div><br></div><div>One of my upcoming projects is making my own =
pick and place and on my list of things to build for it are stepper motor d=
rivers.</div><div><br></div><div>After asking around I have settled on the=
=A0L6470 stepper driver, it seems an awesome chip. It works over spi and al=
l you need to do is tell it where to go, it handles driving the stepper for=
 the correct number of steps, acceleration, deceleration, correcting for mi=
ssed steps, stall detection, homing switch control and a whole lot more.</d=
iv>



<div><br></div><div>You can see more here:=A0<a href=3D"https://www.sparkfu=
n.com/products/10859" target=3D"_blank">https://www.sparkfun.com/products/1=
0859</a></div><div><br></div><div>The snag is I need 10 of them, and at ~=
=A325 a pop its not cheap, so I&#39;m going to make my own breakouts.</div>



<div><br></div><div>Its looking like I can get the price down to ~=A311 eac=
h driver, with boards containing 3 and 4 drivers on each (3 drivers on a bo=
ard being ~=A333, 4 being ~=A344).</div><div><br></div><div>Would anyone el=
se be interested in buying some of these if I was to make a surplice, how m=
any would you be interested in? If we get interest I will get a fixed cost =
and pop up a wiki page for orders.</div>



<div><br></div><div>Hugs,</div><div><br></div><div>Sol</div>
</blockquote></div><br>

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