Back
[00:01:23] <Nick001-Shop> do you have another card that will work?
[00:03:41] <Nick001-Shop> Dinner time - will be back 1 hr - --
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[00:06:26] <r00t4rd3d> thanks for the warning!
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[00:20:11] <andypugh> Nick001: For the absolute easiest setup (at a cost) a 5i25 card and a G540
[00:20:30] <andypugh> Ah, he left
[00:20:54] <Tom_itx> the 540 has spindle control too doesn't it?
[00:21:01] <andypugh> Yes
[00:21:14] <PCW> The 7I32 is funny as it really designed for stepmotors with feedback and SoftDMC
[00:21:15] <Tom_itx> that's what i'm lacking
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[00:21:43] <Tom_itx> is it feasable to do rigid tapping with steppers?
[00:21:55] <PCW> so its has both angle and current setting from host
[00:22:09] <PCW> I dont see why not
[00:22:16] <Tom_itx> i'm not sure a sherline spindle can be reversed though
[00:22:25] <andypugh> If Nick001 has another use for the 5i20, perhaps he would be better with a 5i25 / 7i77 / G540 combo?
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[00:22:41] <andypugh> Though the G540 is overkill for 1A steppers.
[00:23:02] <Tom_itx> what's a good durable driver for 1A ish steppers?
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[00:23:05] <Tom_itx> ie NEMA17
[00:23:16] <PCW> Yeah although it looks like one machine and only 1A step motors
[00:23:17] <Tom_itx> maybe 2A
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[00:23:48] <PCW> does Leadshine make a small drive?
[00:23:54] <andypugh> Tom_itx: Leadshines are fine
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[00:24:03] <andypugh> You can throtthe down...
[00:24:44] <PCW> I'll look at the possibility of supporting the 7I32 with the stepgen
[00:25:02] <Tom_itx> what card is it?
[00:25:09] <Tom_itx> haven't looked at that one
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[00:26:03] <PCW> Its really designed for close loop stepmotors and SoftDMC but I think I could hack the stepgen to work with it
[00:26:45] <andypugh> Tom_itx: These would be cool if they worked step/dir
http://www.zappautomation.co.uk/uim24302b-self-pulsing-miniature-stepper-driver-p-557.html?cPath=9_3_4
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[00:27:28] <Tom_itx> for a closed end stepper yeah
[00:27:32] <andypugh> Actually, for Nick001 those _are_ ideal as they work on analogue voltage, so make his steppers into servos. (sort of)
[00:28:05] <andypugh> He has glass scales for feedback, I think he said.
[00:28:25] <Tom_itx> what form factor is it? 17 or 23?
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[00:28:36] <andypugh> 17, but there are 23 adapters
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[00:29:25] <Tom_itx> what's self pulsing mean?
[00:29:33] <andypugh> Definitely worth pointing him at those when he gets back, perfect for what he has, I reckon.
[00:29:51] <andypugh> Tom_itx: It means that they create their own step-dir signals.
[00:30:09] <Tom_itx> what controls the step speed then?
[00:31:10] <andypugh> The things listed in the web page?
[00:31:31] <Tom_itx> DAC output?
[00:32:28] <andypugh> http://www.zappautomation.co.uk/uim24002-miniature-stepper-driver-p-8.html is more conventional, 23 sized, step-dir. Not as good for Nick001
[00:33:34] <andypugh> This is what I was really looking for, standard Leadshine-style stepper drive. Perfectly OK and running my machine fine.
[00:33:40] <andypugh> http://www.zappautomation.co.uk/pm542-microstepping-driver-p-5.html?cPath=9_3_4
[00:33:56] <andypugh> And yes, you can rigid-tap with steppers.
[00:34:12] <andypugh> OK, I need to sleep.
[00:34:19] <Tom_itx> later
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[01:10:54] <Nick001> is there a US supplier for the UIM24302B? Also ,will it handle steppers with 4 wires?
[01:12:12] <Nick001> Lots of questions - stepper with encoders - will LCNC correst the position or will it stop the movement?
[01:12:23] <Nick001> correct
[01:13:01] <Tom_itx> http://www.alibaba.com/showroom/uim24302.html
[01:13:03] <Tom_itx> china
[01:17:29] <Nick001> I'll look further into that one - china getting expensive with the shipping charges.
[01:30:14] <PCW> you can use stepmotors with encoders as a velocity mode servo
[01:30:16] <PCW> It can still stall if you exceed its capabilities but it is possible to get
[01:30:18] <PCW> better accuracy than a bare stepmotor this way
[01:33:31] <PCW> This does require a high ustep ratio (so the control loop can adjust torque vs load by adjusting usteps from the stepmotors null position)
[01:37:11] <PCW> This is all done in HAL be setting the stepgen to velocity mode and using a PID loop
[01:37:12] <PCW> you can also just fault on a stall if you like, it all depends on how you have you HAL file arranged
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[02:06:30] <Nick001> making ny head spin with all the posibilities
[02:07:08] <Nick001> is any of this in the wiki?
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[02:09:52] <Tecan> use the horse
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[02:20:11] <tjb1> Thingiverse makes me want a 3d printer oh so much more...
[02:20:51] <jdh> I quit looking.
[02:21:23] <tjb1> Does the same thing to you?
[02:24:22] <jdh> yep... it's on my list.
[02:24:41] <jdh> after I cnc one of my lathes and before the co2 laser
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[02:26:32] <tjb1> Anythng you want…can be printed in a day
[02:26:55] <tjb1> Then it upgrades itself...
[02:28:34] <tjb1> Interesting -
http://www.thingiverse.com/thing:30657
[02:35:58] <Valen> seems like a really hard way of making a plastic block with a hole in it
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[04:08:29] <r00t4rd3d> lid
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[06:42:43] <Loetmichel> mornin'
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[07:02:29] <DJ9DJ> good morning
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[12:12:00] <r00t4rd3d> -_o
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[12:24:59] <jerryjj> I am trying to use stepconf to enter the correct timings for my steppers. Is there a limit on the step time? If I enter anything over 5000 (even 5001) the steppers just make high frequency noise.
[12:26:53] <cpresser> jerryjj: maybe this helps:
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Stepper_Drive_Timing
[12:28:08] <cpresser> there is lots of info on steppers in the wiki
[12:28:12] <r00t4rd3d> jerryjj, what controller are you using?
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[12:28:58] <jerryjj> OK, from that list I can see that a few drivers use longer step times.
[12:30:04] <jerryjj> I am using drivers that I made from an attiny85. They work great using GRBL, but I am using about a 10ms step time with that...
[12:32:47] <jerryjj> I can get them to run at 5000, but I can tell from how they sound that it isn't right. They are missing steps even at a very slow speed.
[12:33:55] <jdh> do you have an adequate pulse width?
[12:34:00] <cpresser> hook up a scope :)
[12:34:10] <r00t4rd3d> if your acceleration and velocity is set to high you will get weird noises too
[12:35:02] <r00t4rd3d> and i imagine with that setup those numbers should be pretty low
[12:35:46] <jdh> 10ms steps?
[12:35:59] <r00t4rd3d> "using GRBL"
[12:36:14] <jdh> does that require a paper towel tube?
[12:36:16] <jdh> nevermind.
[12:36:29] <r00t4rd3d> ha
[12:36:41] <jerryjj> Yep. I'm fairly sure the step time needs to increase just a bit more to work reliably, but as I said, when I enter 5001 or more they cease to function even at .1mm/s
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[12:39:14] <jerryjj> Sorry, that was uS, not mS...
[12:42:19] <cpresser> jerryjj: that might be some weird bug. thats why i would try to check the waveform with a scope
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[13:28:26] <jerryjj> It is a bug... the test in stepconf doesn't work, but if I save it and open axis, they work just fine.
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[14:52:46] <archivist> anyone have an old starrett catalog with the No 2D 1 inch disc in it trying to find it's accuracy specification and their website sucks
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[15:10:52] <r00t4rd3d> archivist are you ArcEye on the forums?
[15:11:16] <archivist> no, I never post on the forum
[15:11:31] <r00t4rd3d> why not?
[15:12:00] <archivist> I rather hate forums because such a lot of bad advice gets left around
[15:13:24] <archivist> and most are so slow due to added adverts and poor design
[15:14:35] <archivist> but for slow see what you can count up to while you wait on
http://www.starrett.com
[15:14:35] <pcw_home> No adverts on the LinuxCNC forum
[15:15:26] <jdh> not me
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[15:20:19] <r00t4rd3d> http://i.imgur.com/UsW5X.jpg
[15:22:18] <r00t4rd3d> i could live in that
[15:22:27] <tjb1> Morning fellas
[15:22:38] <jdh> where would you put the bridgeport?
[15:22:39] <r00t4rd3d> aww fuck, he is here...
[15:22:48] <tjb1> :(
[15:22:51] <r00t4rd3d> :D
[15:23:22] <syyl> no bridgeport, but a deckel fp1 could fit
[15:23:31] <r00t4rd3d> my router would fit
[15:23:38] <r00t4rd3d> on the kitchen table
[15:23:46] <syyl> it would be the kitchen table
[15:23:56] <syyl> perfect to slice pizza
[15:24:08] <syyl> "what feed do you run on pizza?"
[15:24:23] <r00t4rd3d> i wanted to hook a frosting pump upto my router and do cakes
[15:24:31] <FinboySlick> r00t4rd3d: From remembering riding in those, I hope they fixed the suspension because these things are bouncy as heck... Better not leave dishes in the cupboards.
[15:24:55] <tjb1> Free bandsaw blade -
http://info.starrett.com/get-your-free-primalloy-blades?utm_campaign=Banner&utm_source=starrett.com
[15:28:47] <r00t4rd3d> sweet
[15:28:50] <r00t4rd3d> ordered
[15:29:09] <r00t4rd3d> "A Starrett representative will be in contact with you shortly to complete your request for a free Primalloy band saw blade. "
[15:30:49] <r00t4rd3d> http://i.imgur.com/HGJR7.jpg
[15:30:50] <r00t4rd3d> lol
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[15:32:25] <TekniQue> that looks only slightly dangerous
[15:33:44] <r00t4rd3d> carve this on your fancy lathes:
[15:33:46] <r00t4rd3d> http://i.imgur.com/h5v4V.jpg
[15:36:00] <r00t4rd3d> I wouldnt even know where to start on something like that
[15:36:06] <r00t4rd3d> good drugs probably
[15:36:22] <mutilator> start at the top
[15:40:23] <tjb1> You can buy wooden blankets...
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[15:45:21] <tjb1> http://gizmodo.com/5907919/you-can-burn-this-working-wooden-blanket-for-extra-warmth-in-the-middle-of-the-night
[15:45:28] <tjb1> I wwas joking but I guess you really can...
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[15:58:28] <archivist> I found a starrett catalog, the disc is missing from the index, but there is a picture as an accessory for a No 2 series micrometer
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[16:13:00] <tjb1> I am going to submit a video of me sharpening a pencil with a bolt to hackaday...
[16:13:15] <tjb1> "Dont have a pencil sharpener? USE A BOLT!"
[16:14:29] <archivist> angle grinder is a little better :)
[16:14:54] <skunkworks> http://bbs.homeshopmachinist.net/threads/56202-Turn-key-setup-for-EMC
[16:15:04] <tjb1> Im just referring to the stupid stuff that gets put on hackaday :)
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[16:55:30] <IchGuckLive> Hi all B)
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[17:05:34] <mrsun> hmm where to get bellows etc to protect the ways of the mill ?
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[17:11:28] <IchGuckLive> mrsun: how long and rubber paper or steel
[17:12:10] <mrsun> dont know :P just wanted to find a place to buy ... i want bellows that would cover the exposed ways
[17:12:29] <IchGuckLive> http://www.par-group.co.uk/rubber-polyurethane/Concertina-Bellows.aspx
[17:12:42] <IchGuckLive> like this
[17:13:27] <mrsun> ye something like that =)
[17:14:35] <archivist> or make them
[17:14:50] <mrsun> yeah tried making one but that was only paper .. but it bent out in strange and stupid ways :P
[17:14:55] <mazafaka> how tomake them?
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[17:15:19] <mrsun> http://www.ixen-cnc.com/2007/10/leadscrew-cover-for-your-sherline-mill.html
[17:16:00] <IchGuckLive> i uses thin VA steel 0.3mm
[17:16:51] <IchGuckLive> make a U punch in one ege and it will work at max 3 sheed wide
[17:18:43] <archivist> you dont need the taper but
http://www.cyberbeach.net/~dbardell/bellows.html
[17:20:03] <archivist> there is another fold but it is not as good as the 45 degree
[17:20:04] <IchGuckLive> it most depends on the shape that has to be sheelded
[17:21:31] <archivist> my lathe has a spring type that looks like a clock mainspring over the ballscrew
[17:21:42] <IchGuckLive> cheep drawer guide with steel also works good
[17:23:08] <archivist> http://www.valvers.com/wp-content/uploads/2012/10/drill-head-002.jpg see lower left
[17:23:16] <archivist> not mine
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[17:23:47] <archivist> other type is interlinked sheet that slides
[17:26:14] <archivist> top right
http://www.aaman.com/brands/gortite
[17:27:16] <archivist> go wonderfully wrong when they jam
[17:32:04] <awallin> those interlinked sheet shields in stainless are something like 800eur/pcs for large VMCs I heard...
[17:32:23] <awallin> not exactly cheap
[17:33:04] <archivist> they do look nice though
[17:33:12] <syyl> way covers are always pretty expencive
[17:33:12] <syyl> :D
[17:33:17] <pcw_home> That telescoping clock spring is cool
[17:33:27] <awallin> yeach and you can walk inside the machine and stand on them :)
[17:33:28] <syyl> x axis bellow for a deckel fp2nc, 300eur
[17:36:37] <IchGuckLive> making them yourself is not hard todo
[17:37:22] <IchGuckLive> cheep rails from your chinese man
[17:38:23] <IchGuckLive> if you got the space let it just overflow your warkroom
[17:38:33] <IchGuckLive> work B)
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[17:46:21] <skunkworks> jeeze
http://www.cnczone.com/forums/g-code_programing/164791-ever_wished_you_could_use.html
[17:51:19] <IchGuckLive> skunkworks: why this axis does the same
[17:52:08] <IchGuckLive> pcw_home: is there a full 5i25_7i76 linuxccn example
[17:54:49] <IchGuckLive> im stuck in mind i orderd encoder 100p/rev ABZ i want to go 1:2 Spindel endcoder
[17:55:07] <IchGuckLive> so i got 2 index per rev and 200 p/rev in real
[17:57:19] <IchGuckLive> the 2 index pulses are the problem etch resets the encoder , i need to get rid of one
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[17:58:32] <IchGuckLive> so count in the index to a Var and output every 2nd to the encoder index
[17:59:49] <IchGuckLive> pcw_home: is this posible or stay with the 100pulses per Rev for treading will be ok 2
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[18:08:28] <IchGuckLive> ok anwer is on wiki yes it will work on 100pulses also
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[18:40:35] <archivist> if he wants two start threads!
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[19:45:14] <PCW> IchGuckLive (should you read this later) 2-1 on encoder is a pain
[19:45:15] <PCW> this is because index-enable is a bidirectional signal so it hard to simply gate
[19:45:17] <PCW> (needs a HAL guru) I guess if you had a single ended encoder you could
[19:45:18] <PCW> gate the index signal electrically with a 50% on/off flag into an opto interrupter on the spindle
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[19:46:39] <jdh> I love it when you talk dirty.
[19:47:32] <PCW> There's more where that came from...
[19:52:44] <tjb1> Good news, I am going to graduate on time
[19:52:55] <jdh> congrats
[19:52:59] <tjb1> :D
[19:53:03] <tjb1> Should have 3 degrees
[19:53:09] <jdh> cool.
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[19:53:14] <tjb1> story bro?
[19:53:16] <jdh> I only have two
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[19:53:31] <tjb1> Mine are all in the same major
[19:53:39] <jdh> I'd like another one, but not bad enough to commit that much time.
[19:54:11] <tjb1> Im just getting the 2 year and 4 year degree and some other one in my major…I didnt take any extra classes
[19:55:27] <jdh> ever get to shower with sandusky?
[19:55:31] <tjb1> I have thought about doing a conversion on a shoptask 3-1 but I dont think its worth it
[19:55:35] <tjb1> no
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[19:56:15] <tjb1> Anyone in here know of a instructional or something to explain how to make a UML diagram for a class?
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[20:02:00] <andypugh> Nick001-Shop: Did you see those analogue-input stepper drives?
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[20:10:51] <Nick001-Shop> Yes- just haven't really had time to look at them hard. Also looked at the stepper drivers for 52 - dont know what that is in USD. Found them on an asiasite (alibaba?) for 150 usd each plus $150 to ship thep from china. Guess I'll look at the geclo's before I do that one.
[20:11:58] <Nick001-Shop> gecko's
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[20:15:44] <andypugh> Well, the self-pulsing ones would basically make the steppers look like servos, and then they would hook directly to the 7i77, which seems handy for you.
[20:15:57] <andypugh> (You did say you had linear scales to close the loop?)
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[20:18:58] <Jymmm> andypugh: got a moment to look at something?
[20:19:33] <andypugh> 'appen
[20:20:02] <Jymmm> andypugh: I dont know what that measn, but ok =)
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[20:20:52] <Jymmm> andypugh: They have this "302/304 certified" SS, I'm not sure what that really means, but the material specs are at the bottom. Can you make heads or tails of it by chance?
http://www.maudlinproducts.com/1281.xml?cat=1291
[20:21:06] <andypugh> http://silsden.net/yorkshiredialect/dictionary.htm
[20:21:26] <Jymmm> lol
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[20:21:51] <Jymmm> A Brit to Earth dictionary, nice.
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[20:22:19] <andypugh> full-hard temper sounds good. (shim is often somewhat annealed)
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[20:23:07] <andypugh> It does seem quite expensive.
[20:23:28] <Jymmm> andypugh: I got a sample of it, and it's what I need. But they are taking like 40 days to process anything, so I may need to shop around, but I'm not sure what I'm looking for that's equiv.
[20:23:54] <Jymmm> I tried 316L and that's a no go.
[20:24:11] <Jymmm> 412 is a no go.
[20:24:15] <andypugh> http://www.ebay.com/itm/Stainless-Steel-302-Shim-Stock-Roll-Full-Hard-Temper-2B-Finish-/300745381658
[20:26:00] <r00t4rd3d> goto lowes and get a roll of flashing
[20:26:18] <Jymmm> r00t4rd3d: that's aluminum, not SS
[20:26:47] <Jymmm> andypugh: But since theirs is a hybrid, which do you think I should be looking at more, the 302 or 304?
[20:26:49] <r00t4rd3d> even better, it will retain its value
[20:27:11] <andypugh> Not sure, to be honest.
[20:27:30] <Jymmm> andypugh: Yeah, with the multiple sub grades, me neither.
[20:27:47] <Nick001-Shop> andypugh> yes - don't know if they work yet - have to get the pinouts from acu-rite and test them
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[20:38:40] <r00t4rd3d> http://www.brandsoftheworld.com/
[20:38:50] <r00t4rd3d> Mmmmm free logo vectors
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[20:46:11] <Nick001-Shop> Andypugh: which Gecko is a self pulsing driver?
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[21:15:03] <DJ9DJ> gn8
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[21:28:16] <andypugh> Nick001-Shop: None of them (as far as I know)
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[21:29:44] <andypugh> I was talkikng about these:
http://www.zappautomation.co.uk/uim24302a-self-pulsing-miniature-stepper-driver-p-556.html?cPath=9_3_4
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[21:50:25] <Nick001-Shop> andypugh: Specs look interesting - have to find them in the US maybe
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[23:57:54] <r00t4rd3d> still need to clean it up some but :
[23:57:55] <r00t4rd3d> http://imgur.com/a/FpaDD
[23:58:16] <r00t4rd3d> and stain/seal it.
