More on the mechanicals this time – didn’t think to get some last time……..and, A revelation as to why it’s so quiet!
There’s NO fan in this thing!!
Many are reporting amazement at how silent this thing is in action – well, this is why. it’s JUST the stepper motor making noise (and the little buzzer)
The main reason for not needing any fan is due to the better light transmissibility of the monochrome LCD panel.
if (say) it passes 3x more light through than a normal LCD panel, then the UV LED needs 1/3rd of the time to be on to give the same exposure.
The LED panel is also cleverly mounted onto the steel baseplate – which acts as a massive heatsink.
I doubt it gets hot enough to justify the extra expense of a fan!
The Stepper driver (U9 in the picture above, just up and to the left of the large round buzzer), (heatsink removed in the picture above) seems to be the good old, tried and tested 4988 – which are noisy, but robust – incidentally, the TMC2208 is pin compatible for these, possible ‘upgrade’ maybe?
Anti vibration mount on the stepper motor!, impressive for this price
two optical detectors – one for the end stop for lowering the build platform into the resin vat. the other surrounded by Black is for the rear covering in position detection safety circuit
The Front Touch control LCD – Labelled SID240320-20PCB-A
markings suggest it’s a 240×320 LCD – 20? and Rev-A
A quick google – Brings up a similar number – a SID-240320-8PCB-D
which is also present on some Alphawise, longer and other Resin printers.
Not much I can find about this, other than it’s probably an ILI9341 Based display and would work with Marlin
Closeup of the lenses – looks like it’s a single piece cast plastic item. potential for upgrade here maybe to a glass one?
That’s a HUGE linear rail for the build platform, rock solid. Unsure what type – but it looks MGN15 sized as it’s quite a bit larger than the MGN12 size I put on my Wanhao D9
That’s it. Gotta get some heat-sink ‘glue’ now then i’ll be able to print with this thing :-), any questions, ask