Build Your Own SLA/SLS

I'm finding the rocket blower isn't shifting the dust from the mirror adequately; I assume that a soft lens brush is about the only thing that's safe to use on the mirror? Just been reading up on the Solus printer by way of comparison; they say they have a quartz optical path. If that means what I t...

Good stuff. Nice to see another UK-based owner, makes it easier to compare notes on sourcing.

Out of interest - is anyone else trying to use Spot-A HT (B9 formulation) with the LittleRP? It seems relatively good for bulkier shapes, the cal block prints 4 of 5 of the fine rods OK (the thinnest is a washout) but as soon as I try to print fine structures at 25u, they don't seem to have the stre...

FunToDo in Holland
Spot-A in Spain

Bound to be others, but those are the 2 I've got ATM. iMakr in London offer Makerjuice (SF & G+) but they aren't LittleRP formulation.

I'd assumed it was a related factor to the definition of the print - I'm not seeing that level of stair-step, but equally I'm not getting such sharp results, so the stair-stepping may just be blurred on my prints.

Your results with no added pigment are impressive - I confess I've stopped using the FTD resin for now to try and sort out settings with the Spot-A resin. Getting there, but the smallest of the posts currently eludes me. On the holes filling in on the base - is that just a factor of the longer expos...

I've put Petri dishes through the ultrasonic - but only after the PDMS has reached the end of its useful life. Cleaned them with some IPA first, then used my usual jewellery cleaner; the PDMS was a doddle to remove and the remaining resin residues wiped off.

IIRC, the current draw for the motor drive circuit is more than can be supplied from the Arduino board.

Of course, if you stick to English there's far more chance of non-Italian speakers being able to offer assistance.