X pins not working? on commissioned O2 March 15, 2015 12:53PM |
Registered: 9 years ago Posts: 177 |
Re: X pins not working? on commissioned O2 March 15, 2015 01:19PM |
Registered: 9 years ago Posts: 18 |
Re: X pins not working? on commissioned O2 March 16, 2015 08:05AM |
Registered: 9 years ago Posts: 177 |
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stuart576
With the Z-probe I would perform some continuity checks first as well.
Re: X pins not working? on commissioned O2 March 16, 2015 09:19AM |
Registered: 10 years ago Posts: 14,672 |
Re: X pins not working? on commissioned O2 March 16, 2015 07:50PM |
Registered: 9 years ago Posts: 177 |
Re: X pins not working? on commissioned O2 March 17, 2015 05:51AM |
Registered: 10 years ago Posts: 14,672 |
Re: X pins not working? on commissioned O2 March 17, 2015 08:31AM |
Registered: 9 years ago Posts: 177 |
Re: X pins not working? on commissioned O2 March 17, 2015 09:19AM |
Registered: 10 years ago Posts: 14,672 |
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shadow651
Sounds like RRP isn't 100% sure how your firmware handles the Z-probe, but I thought as long as M558 P2 was in the config.g your firmware handled the default probe the same way as stock.
They're thinking that it's probably something with the wiring loom, or the board.
Re: X pins not working? on commissioned O2 March 17, 2015 07:03PM |
Registered: 9 years ago Posts: 177 |
Re: X pins not working? on commissioned O2 March 17, 2015 07:13PM |
Registered: 10 years ago Posts: 14,672 |
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shadow651
Looks like the wires are reversed on the z end of the probe loom, green and yellow like I thought. Not sure if there is a way to get the wires out of the connector to fix it myself.
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shadow651
Looking at the duet for the stepper issue, looks like some solder is shorting out the X stepper driver (U5)
Re: X pins not working? on commissioned O2 March 17, 2015 11:47PM |
Registered: 9 years ago Posts: 177 |
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dc42
I can't confirm that they are swapped as I have an Ormerod 1. But if you are certain, you can easily swap them. Press a small point into the rectangular hole on the front of the connector to disengage the barb, then you can pull on the wire to remove the pin.
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dc42
I am truly astonished that even after all these months, RepRapPro and their suppliers are still not testing Duet boards adequately prior to shipping them. Even a visual inspection should have picked that up. The hot end boards and PanelDue board I ship are fully tested prior to shipment (I even built an automatic test rig for the hot end boards), and I wouldn't dream of doing anything different.
Re: X pins not working? on commissioned O2 March 18, 2015 04:15AM |
Registered: 9 years ago Posts: 1,159 |
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dc42
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shadow651
Looking at the duet for the stepper issue, looks like some solder is shorting out the X stepper driver (U5)
I am truly astonished that even after all these months, RepRapPro and their suppliers are still not testing Duet boards adequately prior to shipping them. Even a visual inspection should have picked that up. The hot end boards and PanelDue board I ship are fully tested prior to shipment (I even built an automatic test rig for the hot end boards), and I wouldn't dream of doing anything different.
Re: X pins not working? on commissioned O2 March 18, 2015 06:02AM |
Registered: 13 years ago Posts: 1,611 |
Re: X pins not working? on commissioned O2 March 18, 2015 06:16AM |
Registered: 10 years ago Posts: 14,672 |
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droftarts
dc42: As 'truly astonished' as you are, it's just not the way the world works, is it? We expect our suppliers to test the boards for us, and they promise us that they do. However, clearly they don't, or at least not 100%.
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droftarts
Also "Press a small point into the rectangular hole on the front of the connector to disengage the barb, then you can pull on the wire to remove the pin." That's okay for the 100kk crimps, but not the 1800T crimps on this connector - you'll crush the crimp if you do that. You have to lift the tab in the housing.
Re: X pins not working? on commissioned O2 March 18, 2015 07:37AM |
Registered: 13 years ago Posts: 1,611 |
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dc42
However you choose to do it, it's your (RepRapPro's) responsibility to ensure that the boards you ship are fit for purpose. Planning how boards will be tested is an important part of electronic design. If you are relying on your supplier to test the boards, then this is presumably covered in the contract with your supplier. Have you provided your supplier with a test schedule, and a test rig if they need one to execute that test schedule?
Re: X pins not working? on commissioned O2 March 18, 2015 09:33AM |
Registered: 10 years ago Posts: 14,672 |
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droftarts
Of course it is, and we strive for this, and when we fail, we replace under warranty. We do all of what you suggest. But do we expect 100%? No, it's unrealistic.
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droftarts
Regarding shadow651's issue, I haven't seen a stepper driver that badly soldered in any of the over 3000 Duets we've shipped. And, in fairness, in every other respect, the board works, so it could have gone through testing, but an unobservant tester may have missed the fact that the X stepper was not moving, though all others were.
Re: X pins not working? on commissioned O2 March 18, 2015 09:41AM |
Registered: 10 years ago Posts: 2,472 |
Re: X pins not working? on commissioned O2 March 18, 2015 12:18PM |
Registered: 9 years ago Posts: 177 |
Re: X pins not working? on commissioned O2 March 18, 2015 12:39PM |
Registered: 10 years ago Posts: 14,672 |
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shadow651
I can see both sides of the issue. On the one hand, it's very easy for us the consumer to sit around and point at a company and say 'well, I wouldn't do it that way' or 'you should've known better' or whatever. But at the same time, we want all of these goods at a prices that's as low as possible. Sadly we can't have our cake and eat it too. I think we all love how affordable RRP kits are compared to some of the other systems out there, it's basically a selling point. If the kits cost more, we'd be guaranteed that everything would work, but would they lose sales because of the price increase? and thus make less?
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shadow651
I don't know how common duet problems really are, but looking at the forums is going to give you an exaggerated view because we see everyone that has the tiniest problem, but we probably never see some people who build the machine with no issues.
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shadow651
As long as humans are involved, mistakes will happen no matter what, and I typically have bad enough luck to encounter them all.
Re: X pins not working? on commissioned O2 March 18, 2015 02:43PM |
Registered: 10 years ago Posts: 2,472 |