Cherry Pi III Is Available
Posted by AndyCart
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Re: Cherry Pi III Is Available September 09, 2015 07:18PM |
David J, congratulations! It sounds like you had quite a few problems, and I'm glad you managed to solv them all. It looks a very neat printer too.
If you print a few more Escher lizards, you can end up with something like this.
Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod
Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
If you print a few more Escher lizards, you can end up with something like this.
Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod
Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
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Re: Cherry Pi III Is Available September 10, 2015 05:08AM |
There is room underneath, but I cheated and used some aluminium U-section across the lower sections of the frame (I couldn't be bothered to design something specially for the job, and I had the metal parts I needed in the garage). You can just about see them in this picture. I used captive nuts on the U-channel with nylon nuts and screws to hold the board to it.
It is possible to make a very neat layout, with a bit of effort. It also helps if you're prepared to cut the motor harnesses to fit, as I did.
Note: The orange box on the side originally had sockets for the ethernet, USB and XBox PSU - but then I found that the PSU didn't quite have enough power so I made another box that only had the ethernet and USB connectors, with the power coming from an external 12v PSU via a pair of hefty cables.
Edited 2 time(s). Last edit at 09/10/2015 05:29AM by David J.
It is possible to make a very neat layout, with a bit of effort. It also helps if you're prepared to cut the motor harnesses to fit, as I did.
Note: The orange box on the side originally had sockets for the ethernet, USB and XBox PSU - but then I found that the PSU didn't quite have enough power so I made another box that only had the ethernet and USB connectors, with the power coming from an external 12v PSU via a pair of hefty cables.
Edited 2 time(s). Last edit at 09/10/2015 05:29AM by David J.
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Re: Cherry Pi III Is Available September 17, 2015 09:30AM |
I've just finished rebuilding by effector with an inductive Z-probe and part cooling fan. I've worked out that the Z-offset between the probe triggering and then the nozzle just catching the paper is 0.14mm. Do I enter this in marlin's configuration.h as positive or negative? Is this value only used during auto-calibration?
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Re: Cherry Pi III Is Available October 17, 2015 08:24AM |
Guys? Anyone able to give me a hand? It's driving me nuts and I haven't managed to get help. 
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Re: Cherry Pi III Is Available October 24, 2015 02:15AM |
Maybe check out the deltabot google group and this thread: [groups.google.com]
Afaik it doesn't matter too much that someone has the same printer (although there is a certain poetic appeal to it
)
It's more important that they have a well working machine.
Edited 1 time(s). Last edit at 10/24/2015 02:15AM by Dejay.
Afaik it doesn't matter too much that someone has the same printer (although there is a certain poetic appeal to it
) It's more important that they have a well working machine.
Edited 1 time(s). Last edit at 10/24/2015 02:15AM by Dejay.
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Re: Cherry Pi III Is Available October 24, 2015 02:21AM |
Yes it is clear that a CoreXY can print parts for the Cherry, but a person who had build one might have a better understanding of it (although not necessarily 
), considering all the different versions available.
Like if you have a stable and working build it would be easier to build a second one.
Edited 1 time(s). Last edit at 10/24/2015 02:32AM by Teilchen.
), considering all the different versions available.Like if you have a stable and working build it would be easier to build a second one
.Edited 1 time(s). Last edit at 10/24/2015 02:32AM by Teilchen.
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Re: Cherry Pi III Is Available October 24, 2015 02:41AM |
Well you just send them the required STL files in a zip file. And in the worst case there is always duct tape (Or zip ties or super glue)
(Or zip ties or super glue)
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Re: Cherry Pi III Is Available October 24, 2015 04:54AM |
Quote
Teilchen
Yes it is clear that a CoreXY can print parts for the Cherry, but a person who had build one might have a better understanding of it (although not necessarily
Like if you have a stable and working build it would be easier to build a second one
Andycart who designed it will print you a set of parts he usually advertises on ebay although I can't see anything at the moment You could always drop him a PM on here and I am sure he will sort you out with a set but to be honest you may be better with a set of Alluminium extruded corner's from www.robotdigg.com for $55 and then all you would really need printing are the Carriage parts and the effector parts plus any silly little endstop/electronics mounts mounts etc (These mounts/cases could be printed be yourself and retro fitted later)
HTH
Doug
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Re: Cherry Pi III Is Available November 09, 2015 04:05AM |
Hello,
I'm having a hard time to calibrate my cherry pi.
I have a Rostock printer that I build so I have a little experience with deltas..
I'm attaching a photo that will help me to explain:
All 3 towers and center were calibrated with the paper method. (I have also Z probe but I want to calibrate it by hand first)
When the printer goes from the center to the green arrow, the nozzle raise a bit.
When the pinter from from the center to the opposite direction (the red arrow) the nozzle is hitting the bed.
When I travel between X and Y towers - everything is good.
The problem is only between X ->Z, Z->Y.
I thought maybe I'm missing steps, or the belts are not tight enough.
I adjusted the current limit and tightened the belts, but nothing helped.
My printer does print good, but only at the center.
[youtu.be]
Does someone have a clue what am I missing? what I did wrong?
It is something to do with the calibration? Or maybe it's a build problem..
Thanks,
Itay
Edited 1 time(s). Last edit at 11/09/2015 05:53AM by itaysp.
I'm having a hard time to calibrate my cherry pi.
I have a Rostock printer that I build so I have a little experience with deltas..
I'm attaching a photo that will help me to explain:
All 3 towers and center were calibrated with the paper method. (I have also Z probe but I want to calibrate it by hand first)
When the printer goes from the center to the green arrow, the nozzle raise a bit.
When the pinter from from the center to the opposite direction (the red arrow) the nozzle is hitting the bed.
When I travel between X and Y towers - everything is good.
The problem is only between X ->Z, Z->Y.
I thought maybe I'm missing steps, or the belts are not tight enough.
I adjusted the current limit and tightened the belts, but nothing helped.
My printer does print good, but only at the center.
[youtu.be]
Does someone have a clue what am I missing? what I did wrong?
It is something to do with the calibration? Or maybe it's a build problem..
Thanks,
Itay
Edited 1 time(s). Last edit at 11/09/2015 05:53AM by itaysp.
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Re: Cherry Pi III Is Available November 09, 2015 07:46AM |
Thank you! I will try this when I get back home.
I was using Repetier firmware until now.
In Reptier firmware i'm able to change "Angle of column A/B/C", do you think this is it?
Edited 2 time(s). Last edit at 11/09/2015 08:48AM by itaysp.
I was using Repetier firmware until now.
In Reptier firmware i'm able to change "Angle of column A/B/C", do you think this is it?
Edited 2 time(s). Last edit at 11/09/2015 08:48AM by itaysp.
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