Precision Piezo Z-probe Now available.
Posted by DjDemonD
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Re: Precision Piezo Z-probe Now available. April 02, 2018 01:55PM |
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DjDemonD
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tekkydave
Hi. Does the Orion use 2 separate piezo discs as opposed to a drilled one?
The Orion uses Piezos soldered to a pcb. The pcb has a hole in it.
So the filament isn't going through a hole in a piezo. I seem to be having issues with my PP20 where the filament is catching on the sharp edge of the drilled hole. Could be a good reason to upgrade to the Orion
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Re: Precision Piezo Z-probe Now available. April 02, 2018 02:31PM |
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tekkydave
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DjDemonD
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tekkydave
Hi. Does the Orion use 2 separate piezo discs as opposed to a drilled one?
The Orion uses Piezos soldered to a pcb. The pcb has a hole in it.
So the filament isn't going through a hole in a piezo. I seem to be having issues with my PP20 where the filament is catching on the sharp edge of the drilled hole. Could be a good reason to upgrade to the Orion
Is it a 3mm filament system, if it is thats an issue that might solved by taking a needle file to the drilled metal edge? If it's 1.75mm then use a short piece of bowden tube through the unit just as a filament guide, this is good practice not to have any 1.75mm filament unconstrained especially with flexible materials.
Edited 1 time(s). Last edit at 04/02/2018 02:31PM by DjDemonD.
Simon Khoury
Co-founder of [www.precisionpiezo.co.uk] Accurate, repeatable, versatile Z-Probes
Published:Inventions
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Re: Precision Piezo Z-probe Now available. April 02, 2018 02:41PM |
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DjDemonD
Is it a 3mm filament system, if it is thats an issue that might solved by taking a needle file to the drilled metal edge? If it's 1.75mm then use a short piece of bowden tube through the unit just as a filament guide, this is good practice not to have any 1.75mm filament unconstrained especially with flexible materials.
Yes, 3mm. Groovemount on Titan. I have to take it all apart tomorrow to see what's going on. I'll see if the sharp edge can be taken off. Thanks.
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Re: Precision Piezo Z-probe Now available. April 03, 2018 06:41AM |
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DjDemonD
I think I've heard about it happening in the past perhaps once. And with 3mm yes. Don't worry if there is a little ceramic missing, in terms of function it makes almost no difference.
Yes, I can confirm that - the PP20 works fine.
Trouble is I have to replace the nozzle when this happens as it gets blocked by the fragments. Hopefully now it is all filed smooth it will be the last time - except if the nozzle is worn or course
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Re: Precision Piezo Z-probe Now available. April 03, 2018 07:45AM |
Thats a good idea. I bought the piezo pre-drilled as I didn't fancy drilling it myself. However, I have an idea for a slight modification to the groovemount plastic parts for 3mm use - watch this spaceQuote
Moriquendi
Somebody had the same problem as you and I think he solved it by putting kapton tape over the piezo before drilling, I wonder whether you could do the same thing but poke a hole in the tape to put the filament through.
Idris
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Re: Precision Piezo Z-probe Now available. April 03, 2018 09:37AM |
Tried to put a cylindrical section in to separate the filament from the piezo. The dimensions are just too tight with 3mm filament and a 5mm hole in the piezo - too big and it stops the piezo flexing, too small and it causes friction on the filament.
Maybe I will get that Orion after all
Maybe I will get that Orion after all
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Re: Precision Piezo Z-probe Now available. April 07, 2018 11:56AM |
Well, I bought an Orion. Fitted it today and am impressed. It's much improved over the PP20 in terms of construction and accuracy. Good work guys
The only config change I needed to make on the Duet is changing I0 to I1 in the M558 command due to the Orion being active-low.
My only niggle at the moment is that the groove-mount seems to be a bit loose in the Titan so there's a bit of wobble. I may need some padding on the bottom of the Titan body or a slightly modified plastic part.
I still have issues loading 3mm filament but I'm convinced this is down to the design of the E3D Titan and V6 heatsink. If there is any significant curl on the filament it doesn't always cleanly enter the top of the heatsink, fouling on the edge and jamming. I'm putting this down to the stiffness of 3mm filament. I found heating the filament slightly and bending it against the natural curve to straighten it lets it feed through without fouling the edge of the heatsink.
The only config change I needed to make on the Duet is changing I0 to I1 in the M558 command due to the Orion being active-low.
My only niggle at the moment is that the groove-mount seems to be a bit loose in the Titan so there's a bit of wobble. I may need some padding on the bottom of the Titan body or a slightly modified plastic part.
I still have issues loading 3mm filament but I'm convinced this is down to the design of the E3D Titan and V6 heatsink. If there is any significant curl on the filament it doesn't always cleanly enter the top of the heatsink, fouling on the edge and jamming. I'm putting this down to the stiffness of 3mm filament. I found heating the filament slightly and bending it against the natural curve to straighten it lets it feed through without fouling the edge of the heatsink.
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Re: Precision Piezo Z-probe Now available. April 08, 2018 09:56AM |
Maybe the reason I didn't get this with the PP20 is because it has a bit more room for the filament to flex a little. Whereas the Orion has a much tighter (and better, actually) filament path.
For now I need to find the best temperature to probe at so I don't get too much ooze but also get a bit of "give" in the filament.
For now I need to find the best temperature to probe at so I don't get too much ooze but also get a bit of "give" in the filament.
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