Mounting dc42's Mini height sensor board March 07, 2016 11:48PM |
Registered: 10 years ago Posts: 1,699 |
Re: Mounting dc42's Mini height sensor board March 09, 2016 01:02AM |
Registered: 10 years ago Posts: 1,699 |
Re: Mounting dc42's Mini height sensor board March 09, 2016 02:10PM |
Registered: 9 years ago Posts: 638 |
Re: Mounting dc42's Mini height sensor board March 09, 2016 10:13PM |
Registered: 10 years ago Posts: 1,699 |
Re: Mounting dc42's Mini height sensor board March 10, 2016 02:23AM |
Registered: 10 years ago Posts: 14,684 |
Re: Mounting dc42's Mini height sensor board March 10, 2016 03:43AM |
Registered: 10 years ago Posts: 1,699 |
Re: Mounting dc42's Mini height sensor board May 06, 2016 05:10PM |
Registered: 8 years ago Posts: 45 |
Re: Mounting dc42's Mini height sensor board May 07, 2016 05:35AM |
Registered: 10 years ago Posts: 1,699 |
Re: Mounting dc42's Mini height sensor board May 07, 2016 07:12AM |
Registered: 8 years ago Posts: 45 |
Re: Mounting dc42's Mini height sensor board May 07, 2016 07:42AM |
Registered: 10 years ago Posts: 1,699 |
Re: Mounting dc42's Mini height sensor board May 07, 2016 08:19AM |
Registered: 8 years ago Posts: 45 |
Quote
Treito
I have no problems using my mounting adapters so I can use dc42's angled connector at the board.
However for my own hot-end I had to lower the board so I redesigned both parts, but I did not upload them yet.
I did not get your problem with my design as I also use the x-carriage, but only with a small mounting adapter und a new homing pad. The rest could be changed at the config.g to refit the size of the bed.
Re: Mounting dc42's Mini height sensor board May 07, 2016 08:41AM |
Registered: 10 years ago Posts: 1,699 |
Re: Mounting dc42's Mini height sensor board May 09, 2016 07:43AM |
Registered: 10 years ago Posts: 2,472 |
Quote
Darathy
I was under the impression you needed white pad for the sensor ,but i now i see it works on any color?
Re: Mounting dc42's Mini height sensor board May 09, 2016 06:31PM |
Registered: 10 years ago Posts: 14,684 |
Re: Mounting dc42's Mini height sensor board May 10, 2016 03:37AM |
Registered: 10 years ago Posts: 1,699 |
Re: Mounting dc42's Mini height sensor board May 10, 2016 03:51AM |
Registered: 10 years ago Posts: 14,684 |
Quote
Treito
I already changed the height for my E3D-clone-mounting, but I have not uploaded the files yet.
Do you think that a neon-green (atomic-green) may work? The PLA is reflecting and a little bit shiny.
Re: Mounting dc42's Mini height sensor board May 10, 2016 05:42AM |
Registered: 8 years ago Posts: 45 |
I have no problem with eSun green abs as in the photo above. I have some 1.5mm plasticard and used an off cut of that to set the height to the bottom of the sensor board. It was easy to get it too close and it would then fail to trigger at all.Quote
dc42
Yes, anything except matt black and silver should work.
Re: Mounting dc42's Mini height sensor board May 10, 2016 07:33AM |
Registered: 10 years ago Posts: 2,472 |
Re: Mounting dc42's Mini height sensor board May 10, 2016 08:09AM |
Registered: 10 years ago Posts: 14,684 |
Quote
dmould
The problem I have with all the IR based height sensors is due to the fact that I use an ABS/acetone solution to coat my build plate. All sensors trigger at a height that varies depending on the thickness and surface texture that I manage to achieve with the coating, and while DC42's sensor is better than any other, the variation is still >0.1mm, especially when the ABS slurry has been applied when the bed is hot (so it gets a frosted appearance).
Re: Mounting dc42's Mini height sensor board May 10, 2016 09:18AM |
Registered: 10 years ago Posts: 1,699 |
Re: Mounting dc42's Mini height sensor board May 10, 2016 09:51AM |
Registered: 10 years ago Posts: 1,230 |
Quote
dmould
I am considering trying "BuildTak" which should allow me to use fully automatic Z homing, but I understand that it is a bit delicate.
Re: Mounting dc42's Mini height sensor board May 10, 2016 02:09PM |
Registered: 10 years ago Posts: 1,699 |
Re: Mounting dc42's Mini height sensor board May 11, 2016 07:16AM |
Registered: 10 years ago Posts: 2,472 |
Quote
dc42
Quote
dmould
The problem I have with all the IR based height sensors is due to the fact that I use an ABS/acetone solution to coat my build plate. All sensors trigger at a height that varies depending on the thickness and surface texture that I manage to achieve with the coating, and while DC42's sensor is better than any other, the variation is still >0.1mm, especially when the ABS slurry has been applied when the bed is hot (so it gets a frosted appearance).
Dave, have you tried either putting black paper between the glass and the heat spreader, or painting the top of the heat spreader or the back of the glass matt black? That may reduce the sensitivity to the coating.
Re: Mounting dc42's Mini height sensor board May 11, 2016 07:28AM |
Registered: 9 years ago Posts: 638 |
Quote
dmould
Quote
dc42
Quote
dmould
The problem I have with all the IR based height sensors is due to the fact that I use an ABS/acetone solution to coat my build plate. All sensors trigger at a height that varies depending on the thickness and surface texture that I manage to achieve with the coating, and while DC42's sensor is better than any other, the variation is still >0.1mm, especially when the ABS slurry has been applied when the bed is hot (so it gets a frosted appearance).
Dave, have you tried either putting black paper between the glass and the heat spreader, or painting the top of the heat spreader or the back of the glass matt black? That may reduce the sensitivity to the coating.
I usually print on a thick (5mm) aluminium plate, which I am aware will be inaccurate due to being too reflective, but when I print on glass it sits directly on the red heater PCB with no heat spreader, and I still get the same issue. I may try spraying the aluminium plate with high-temperature matt black paint (as is sold to paint engine exhausts). You never know, that may prove suitable to print on directly. Not sure if that paint bonds directly to aluminium - probably not in which case it will need a light undercoat of zinc chromate which I'm pretty sure will survive bed temperatures.
OTOH as said, manually setting Z height is quick & easy and it's done while I'm at the printer setting up the print anyway, so as it won't improve print quality and is not a significant inconvenience I have no big motivation. It would be nice not to have to coat the plate though, which can be a bit of a PITA, and leaves visible brush marks on the base of the print, so I'm keen to experiment with surfaces that might eliminate that need. From other's comments it looks like Build-Tak may require replacement too often to be satisfactory.
Dave
Re: Mounting dc42's Mini height sensor board May 11, 2016 12:18PM |
Registered: 10 years ago Posts: 2,472 |
Quote
Darathy
You can print a paper in black(or buy black paper) and put it between heat spreader and glass and it will work fine.
Re: Mounting dc42's Mini height sensor board May 11, 2016 01:14PM |
Registered: 9 years ago Posts: 638 |
Re: Mounting dc42's Mini height sensor board May 11, 2016 01:46PM |
Registered: 10 years ago Posts: 1,230 |
Quote
Treito
Erik in that case your first layer was too deep. BuildTak needs a complete different handling, but for me it didn't last long. I already killed three pieces within a week each.
Re: Mounting dc42's Mini height sensor board May 12, 2016 07:19AM |
Registered: 10 years ago Posts: 2,472 |
Quote
Darathy
what abaut anodized aluminum? does it still reflect as much?
Re: Mounting dc42's Mini height sensor board May 12, 2016 09:48AM |
Registered: 10 years ago Posts: 14,684 |
Quote
dmould
Quote
Darathy
what abaut anodized aluminum? does it still reflect as much?
Black anodizing would probably behave very similar to using the glass - I suspect the differences in the ABS slurry would still have a small effect. I did consider getting it anodized but decided to use paint instead because (1) there is an outside chance that the first layer will stick to the paint without needing to be coated and (2) I sometimes scratch the plate when removing difficult parts, and these can easily be touched up with paint, but would be permanent marks with anodizing. Also anodizing is not cheap unless I can arrange for it to be done as part of a bigger batch of parts, (though I could probably get it done cheaper if I shop around).
Dave
Re: Mounting dc42's Mini height sensor board May 14, 2016 09:11AM |
Registered: 10 years ago Posts: 245 |
Quote
Treito
The sensor works well with BuildTak, but it's not very durable. Once the height is a little bit too deep the surface gets permanently damaged. Even though I took care my last BuildTak got damaged when printing PETG.
Next step will be that I will try Pertinax and soon I will try FilaPrint.