Advice for distorted prints November 08, 2015 02:27PM |
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Re: Advice for distorted prints November 08, 2015 03:32PM |
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Re: Advice for distorted prints November 08, 2015 06:15PM |
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Re: Advice for distorted prints November 11, 2015 02:24PM |
Registered: 8 years ago Posts: 34 |
Quote
dc42
Try printing e.g. a 25mm calibration cube so that all of us can get a better idea of what the problem is.
Re: Advice for distorted prints November 11, 2015 04:41PM |
Registered: 8 years ago Posts: 34 |
Re: Advice for distorted prints November 11, 2015 04:51PM |
Registered: 8 years ago Posts: 34 |
Quote
bluesign2k
The first Fisher I assembled the first time had exactly this issue, although not quite to that extent. It happens when one of the balls on either the carriage or effector is loose and is unscrewing when the head is moving. Or, more likely, it also happens if the spacing between the ball pairs on all 3 carriages and the effector aren't equal (and centred).
Re: Advice for distorted prints November 11, 2015 04:54PM |
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Re: Advice for distorted prints November 11, 2015 04:59PM |
Registered: 8 years ago Posts: 34 |
Re: Advice for distorted prints November 11, 2015 05:07PM |
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Re: Advice for distorted prints November 11, 2015 05:16PM |
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Re: Advice for distorted prints November 11, 2015 06:40PM |
Registered: 8 years ago Posts: 68 |
Wow. Yeh, even if this isn't the only source of your problem, a difference of 2 mm isn't going to give you anything other than frustration.Quote
lord_alan
...Here my measurements:
Effector End:
X 57.16mm
Y 57.50mm
Z 55.94mm
Carriages
X 55.90mm
Y 55.50mm
Z 56.07mm
Re: Advice for distorted prints November 11, 2015 11:34PM |
Registered: 8 years ago Posts: 443 |
Quote
lord_alan
Effector End:
X 57.16mm
Y 57.50mm
Z 55.94mm
Carriages
X 55.90mm
Y 55.50mm
Z 56.07mm
Re: Advice for distorted prints November 12, 2015 01:16AM |
Registered: 8 years ago Posts: 443 |
Re: Advice for distorted prints November 12, 2015 01:18PM |
Registered: 8 years ago Posts: 34 |
Bus 003 Device 016: ID 03eb:6124 Atmel Corp. at91sam SAMBA bootloader
alanlord@bigyan:~/3DPrinting/RepRapFirmware/Release$ ~/bin/arduino-1.6.1/hardware/tools/bossac -e -w -v -b RepRapFirmware-1.09k-dc42.bin Auto scan for device failed Try specifying a serial port with the '-p' option
Re: Advice for distorted prints November 12, 2015 02:20PM |
Registered: 8 years ago Posts: 34 |
Re: Advice for distorted prints November 12, 2015 02:23PM |
Registered: 8 years ago Posts: 34 |
alanlord@bigyan:~/3DPrinting/RepRapFirmware/Release$ sudo ~/bin/arduino-1.6.1/hardware/tools/bossac --port=ttyACM0 -e -w -v -b RepRapFirmware-1.09k-dc42.bin Erase flash Write 229776 bytes to flash [==============================] 100% (898/898 pages) Verify 229776 bytes of flash [==============================] 100% (898/898 pages) Verify successful Set boot flash true alanlord@bigyan:~/3DPrinting/RepRapFirmware/Release$
Re: Advice for distorted prints November 12, 2015 02:46PM |
Registered: 8 years ago Posts: 34 |
Re: Advice for distorted prints November 12, 2015 04:59PM |
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Re: Advice for distorted prints November 12, 2015 05:13PM |
Registered: 8 years ago Posts: 68 |
Re: Advice for distorted prints November 12, 2015 06:03PM |
Registered: 8 years ago Posts: 443 |
Re: Advice for distorted prints November 12, 2015 08:59PM |
Registered: 10 years ago Posts: 14,672 |
Quote
bgkdavis
... You can also try rotating the axes on the duet, if you do this move the plugs as follows X-Y Y-Z and Z-X, make sure you move the limit switches the same way, before you print note the orientation on the machine where the faults occur, if after you have rotated plugs the fault stays in the same machine orientation then its a mechanical problem, if it rotates 120 degrees then its software..... if the fault changes then you have both!
Re: Advice for distorted prints November 12, 2015 10:54PM |
Registered: 8 years ago Posts: 443 |
Quote
dc42
Quote
bgkdavis
... You can also try rotating the axes on the duet, if you do this move the plugs as follows X-Y Y-Z and Z-X, make sure you move the limit switches the same way, before you print note the orientation on the machine where the faults occur, if after you have rotated plugs the fault stays in the same machine orientation then its a mechanical problem, if it rotates 120 degrees then its software..... if the fault changes then you have both!
IMO that is an excellent idea to help diagnose the problem.
Re: Advice for distorted prints November 13, 2015 03:14AM |
Registered: 8 years ago Posts: 34 |
Re: Advice for distorted prints November 13, 2015 01:13PM |
Registered: 8 years ago Posts: 34 |