exxos blog - random goings on

[exxos]

@PhilC I am still puzzling over the z-axis currently. 100mm Movement exactly majors 100mm physically with a ruler. A 1mm high cube turns out at 1.25mm! I am thinking because the height is too much that it is why the thing appears to be under-extruding.

What I do not understand why everything being calibrated fine so insanely far out

[stephen_usher]

Is the 0.25mm the initial gap between the base and the extruder nozzle? I'm thinking off-by-one error in the software.

[PhilC]

@exxos ok, sounds like you need something a bit more tweakable than you've got.

I have a spare 3d printer, my old one, that uses a touch screen and marlin software, it's an Ender 3.(need to put bltouch back on and recalibrate it first)

Or

I have some spare BigTreeTech boards motherboard, screen etc that you could retrofit to your printer?

Would you like either?

[exxos]

Thanks for the offer @PhilC But I have my I3 here which I don't have these odd gaps problems with. I'm just trying to calibrate the flash forge so I can print out some new parts for the I3.

My flash forge is using the latest Marlin software and I'm using the various commands to calibrate the printer.

X&Y seem fine, but Z is way out. The only way I could probably do this is to make the travel 25% smaller. I will try a different slicer later as well.

[PhilC]

@exxos No worries. I use Cura myself.

[exxos]

@exxos No worries. I use Cura myself.

I have used at a couple of times but not really set it up yet properly.

I have recalibrated the bed levelling with a piece of paper this time.. it is 0.08mm machine which came with the printer was 0.17mm.. So hoping you will squashed the filament down a little better at least on the first layer and hopefully better on other layers..

[exxos]

It's about the right height now ...

Bottom layer looks much better..

1.JPG (86.17 KiB) Viewed 2072 times

Top layers still out

2.JPG (149.33 KiB) Viewed 2072 times

[Badwolf]

@PhilC I am still puzzling over the z-axis currently. 100mm Movement exactly majors 100mm physically with a ruler. A 1mm high cube turns out at 1.25mm!

What's your layer height? At the risk of stating the obvious if it's not a factor of 1mm, you *won't* be able to print exactly that height. Bear in mind the bottom layer is sometimes scaled up a bit too (eg. 1.5x height).

BW

[exxos]

I think I see what the problem is now..

[exxos]

It looks like the idler wheel is all over the place...

You can see the pink filament here in between the wheels...

11.JPG (95.49 KiB) Viewed 2063 times

Then a few mm later.. you can't...

22.JPG (95.42 KiB) Viewed 2063 times

EDIT:

Looks like the filament itself is all over the place, At least the part in the extruder head..

I was puzzling over what the heatsink and fan was actually doing front of this assembly, it would make more sense for the fan to blow on the filament surely ?!