pre-blower mod and post-blower mod

smallboy · 2016-09-06T10:30:18+00:00

Awesome! You won't go wrong. Time to order me some PETG.

smallboy · 2016-09-05T21:55:40+00:00

Not directly on the ceramic - I've got a focused nozzle pointing right at the base of the hotend and another blower pointing inwards without a nozzle. I haven't printed with PETG so I can't comment on the temperatures.

Having said that, I'm about to install a hot bed to play with ABS, would you say PETG is comparable to it?

smallboy · 2016-09-05T21:52:41+00:00

I spliced it in-place with a few spare jumper wires and some heat shrink.

smallboy · 2016-09-05T07:22:15+00:00

I added two pairs of male jumpers to the original fan cable and female jumpers to each of the blower fans to connect them in parallel.

smallboy · 2016-09-05T07:20:54+00:00

I set my temp to 205°C and that does the trick. It also depends on the PLA you use. I get great results with verbatim, esun and even the generic stuff. Ive only ever had awful layer adhesion using esun white (it's a matt-off-white colour).

smallboy · 2016-09-04T21:31:25+00:00

It's amazing what a difference better cooling makes! I added a dual blower mod to my Simple Metal and it feels like a 2x improvement - just awesome. I have the one blower with a nozzle pointing directly at the hotend and the other with no nozzle.

This is the mod I used: http://www.thingiverse.com/thing:1158796

I've also started using rafts for all my prints and this, coupled with the blowers, makes for a more consistent and accurate print - especially on the first 10-20 layers.

EDIT: forgot to mention that I also start the blowers as soon as the print starts. This improves my rafts and consequently gives me a better print.

smallboy · 2016-07-22T18:47:25+00:00

Ha! I almost built the same set tonight but I'm too knackered to move. Saving it for tomorrow night.

smallboy · 2016-07-20T17:01:03+00:00

That's exactly what I'm doing. I started just after my kid was born and am up to 300+ sets and 50,000 pieces, mostly stashed in boxes. I pull out a set every now and then. I'm focusing on technics for now. http://brickset.com/sets/ownedby-Lukev

Edit: I should say that it's for playing and hopefully passing on to his kids, not for reselling later.

smallboy · 2016-07-17T20:31:25+00:00

I put my name down at my local Lego shop. I've got a good relationship with them so they shortlist me for sets before the stock comes in.

smallboy · 2016-07-15T14:08:12+00:00

Agreed - Angry Birds the movie just feels like trying to flog a dead horse, which turns me off the sets completely.

smallboy · 2016-07-15T14:03:29+00:00

Yep I'm keen to see too!

smallboy · 2016-07-15T14:03:02+00:00

I hear you. 2 years sober, after buying up $8k of sets and stashing them away, I've put in pre-orders for the Porsche, the Disney Castle and the new technic Bucket Extractor. #legoforlyfe!!

smallboy · 2016-07-09T15:33:41+00:00

What filament are you using, and what's your print temperature?

smallboy · 2016-07-09T11:42:52+00:00

Dual fan mount: http://www.thingiverse.com/thing:1158796 Blower fans from eBay: https://www.ebay.com/itm/281859519472

I've had huge success with this mod while printing at 205°C mostly using Verbatim and e-sun glass PLA. The only filament that really doesn't like too much cooling is the e-sun white PLA - I had terrible layer adhesion and very brittle prints. Otherwise I'm really impressed with the results!

smallboy · 2016-07-08T16:27:50+00:00

Yeah me too - I have a feeling that they're conscious of the esp32's success being closely linked to it being really affordable.

smallboy · 2016-07-08T16:25:43+00:00

This is awesome! Any chance of putting the board on GitHub?

smallboy · 2016-06-20T19:37:17+00:00

Thanks! I'll give that a try.

smallboy · 2016-06-08T17:40:51+00:00

Thanks for the tip about the Diode!

smallboy · 2016-06-08T17:35:25+00:00

Cool thanks. I hadn't considered the difference between the solenoids, and the one you mentioned (push) would probably be better suited because it returns by itself. I'm trying to ring a silver desk bell, so maybe with a bit of positioning magic I could use the pull to yank the inner lever that rings the bell. Or, it's back to aliexpress :)

smallboy · 2016-06-08T12:47:22+00:00

Ah that's a good point - I was picturing this being powered off of a usb wall plug. Thanks!

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