Re: Cherry Pi III Is Available April 11, 2015 02:23PM |
Registered: 10 years ago Posts: 67 |
Re: Cherry Pi III Is Available April 11, 2015 03:38PM |
Registered: 10 years ago Posts: 977 |
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AndyCart
...
Hi Mike
The probe is from Ebay [www.ebay.co.uk]
It's the most accurate system I have used to date (microswitch in effector, microswitch with Allen key & FSR all tried previously) the inductive sensor gets the same reading from just two tries about 99% of the time.
No problem manually calibrating with the probe attached.
The only doubt I have about it is the added weight on the effector. Time will tell. So far so good.
Andy
Re: Cherry Pi III Is Available April 11, 2015 04:18PM |
Registered: 10 years ago Posts: 893 |
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Matt,Wheatley
Andy,
The sensor has a 4mm trigger distance, how do you ensure the 4mm between the hot end tip to the sensor? Also have you had to change the sensor offset in the firmware config?
Thanks
Matt
Re: Cherry Pi III Is Available April 11, 2015 04:26PM |
Registered: 10 years ago Posts: 893 |
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Matt,Wheatley
Andy,
The sensor has a 4mm trigger distance, how do you ensure the 4mm between the hot end tip to the sensor? Also have you had to change the sensor offset in the firmware config?
Thanks
Matt
Re: Cherry Pi III Is Available April 11, 2015 04:37PM |
Registered: 10 years ago Posts: 67 |
Re: Cherry Pi III Is Available April 11, 2015 05:06PM |
Registered: 11 years ago Posts: 515 |
Re: Cherry Pi III Is Available April 11, 2015 05:07PM |
Registered: 10 years ago Posts: 893 |
Re: Cherry Pi III Is Available April 11, 2015 05:12PM |
Registered: 10 years ago Posts: 893 |
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AndyCart
It would be great to find a similar size probe, or even a smaller one, that triggers at a greater distance but I can't find anything.
Re: Cherry Pi III Is Available April 11, 2015 05:20PM |
Registered: 10 years ago Posts: 111 |
Re: Cherry Pi III Is Available April 11, 2015 05:26PM |
Registered: 10 years ago Posts: 893 |
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mrorange26
What connections do you use for probe and does it just connect straight to board like the old switch.
Re: Cherry Pi III Is Available April 11, 2015 05:27PM |
Registered: 10 years ago Posts: 111 |
Re: Cherry Pi III Is Available April 11, 2015 06:00PM |
Registered: 10 years ago Posts: 977 |
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David J
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AndyCart
It would be great to find a similar size probe, or even a smaller one, that triggers at a greater distance but I can't find anything.
I have done some investigation in the past - the only sensors I've found with a greater range have either had much bigger bodies, or an awkward shape, or too heavy - or all three at once.
As for the probe being some distance away from the nozzle - on my Prusa I declared the 9 test points in Marlin so that I could be sure that the probe was always over the metal bed when it was doing each auto-levelling probe. I'm not sure if you can do the same in RC's version of Marlin?
Re: Cherry Pi III Is Available April 14, 2015 12:51AM |
Registered: 9 years ago Posts: 76 |
Re: Cherry Pi III Is Available April 14, 2015 02:50PM |
Registered: 10 years ago Posts: 111 |
Re: Cherry Pi III Is Available April 14, 2015 04:17PM |
Registered: 10 years ago Posts: 111 |
Re: Cherry Pi III Is Available April 15, 2015 06:46AM |
Registered: 10 years ago Posts: 893 |
Re: Cherry Pi III Is Available April 15, 2015 07:12AM |
Registered: 10 years ago Posts: 67 |
Re: Cherry Pi III Is Available April 15, 2015 07:21AM |
Registered: 10 years ago Posts: 893 |
Re: Cherry Pi III Is Available April 15, 2015 07:25AM |
Registered: 10 years ago Posts: 67 |
Re: Cherry Pi III Is Available April 15, 2015 07:27AM |
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Re: Cherry Pi III Is Available April 15, 2015 10:28AM |
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Re: Cherry Pi III Is Available April 15, 2015 10:58AM |
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Re: Cherry Pi III Is Available April 15, 2015 11:11AM |
Registered: 10 years ago Posts: 893 |
Re: Cherry Pi III Is Available April 15, 2015 11:16AM |
Registered: 10 years ago Posts: 893 |
Re: Cherry Pi III Is Available April 15, 2015 11:51AM |
Registered: 10 years ago Posts: 1,159 |
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David J
A question for Andy: I've just received a heated ali bed that is the same as the one you recommended a while ago. Surprisingly it came with a thermistor on a length of cable - did yours come with one as well, and have you worked out what sort it is?
I'm guessing that it's the usual generic EPCOS-style 100Kohm job, but there's no way to tell unless I measure its resistance at various temperatures and see which table it matches!
Re: Cherry Pi III Is Available April 15, 2015 12:07PM |
Registered: 10 years ago Posts: 893 |
Re: Cherry Pi III Is Available April 15, 2015 12:14PM |
Registered: 10 years ago Posts: 1,159 |
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David J
Doug,
I have an EPCOS thermistor - I might use that instead of the Chinese one, as at least I'll be certain about which identity to use in Marlin.
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David J
As for the heatbed - I think I've got some heat-proof board in the garage, so I might make a platform under the bed. This will make mounting straightforward and provide good insulation underneath. It's also dimensionally quite good, so shouldn't put the bed on a tilt.
Re: Cherry Pi III Is Available April 15, 2015 12:37PM |
Registered: 11 years ago Posts: 515 |
Re: Cherry Pi III Is Available April 15, 2015 12:40PM |
Registered: 10 years ago Posts: 893 |
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dougal1957
Anything to insulate the bottom of the heatbed is a good thing in My opinion (Some have used radiator reflector pads but be careful with them that you don't run the bed to hot else they can melt the polystyrene).
My PiXL is getting very close now just need to wire up my Z Probe from DC42 kapton my glass plates do an auto calibrate and test print with it (getting time to do all this is the issue at the moment SWMBO keeps getting in the way as well as the day job lol)
Re: Cherry Pi III Is Available April 15, 2015 12:58PM |
Registered: 10 years ago Posts: 893 |