Topics created by robm

I would also probably use this if it was available. Another thing to add to this is a secondary beep or alarm as a reminder that the heat is still on after a user set time or something.

@robm said in 99p filament monitor:

@dc42 said in 99p filament monitor:

Don't use a capacitor to remove the noise, add a resistor between the output and the non-inverting input of the LM393 instead. Last time someone had this problem I think I suggested about 47K and he ended up using 45K; but lower (e.g. 22k) should work too.

with the 0.01 uF cap in place the best I got was 97% - 103%
adding a 33k resistor I got to 99% - 102%
removing the cap (testing resistor only) I got 98% - 104%

so (a) probably both are of benefit, and (b) probably all of these measures are noisy and overlap.

The resistor is the technically correct solution. That board must have been designed by an amateur, because a professional electronics engineer would have included the resistor in the design.

Lower value resistors will give more noise immunity, but if the resistor is too low then it won't respond at all.

Ah, had not found the one linked off that page which interpolates the 25C result. Thanks!

G30 with no XY coordinates probes the bed without changing the XY position of the print head. All other probing commands (i.e. G30 with coordinates, and G29 which uses the mesh coordinates) account for the probe XY offset.

@robm said in M305 Steinhart-Hart thermistor C parameter help?:

Please, someone in the know look at M305 docs parameter T"c" : "The thermistor type letter, default K" - is that supposed to be "thermocouple type"?

Thanks, I've corrected that.

I think I was using either F300 or F600 in that video. The sample interval for analog Z probes is 1ms, so F600 (10mm/sec) would give a theoretical uncertainty of 0.01mm; except that probing speed is reduced by a factor of 3 when the sensor indicates that it is close, so the uncertainty would actually be 0.0033mm.

You may wish to use a M558 S parameter somewhat lower than the default 0.03mm, depending on the Z resolution of your printer.

The USB port on PanelDue is used only for uploading firmware to it, and for providing power in those few setups that need it. It is not active in normal running mode.

@Barracuda72:

yeah..that was me, asking him when he will do the review 😉 couldnt resist to ask for a non-prusa mk3 review 😉

Haha that made me giggle 🙂

I couldn't help but comment on his video either lol

Done!

this is if you have a filament monitor - there are a few different versions designed or in beta test, no clear winner as yet…

If this feature is implemented, it should take into consideration that G1 S2 moves on delta and corexy command individual motors to move, rather than moving in XYZ-space.

<edit>I see this has already been implemented, and there has already been a bug fix for this.</edit>