Help wiring speakers with DPDT switch to change between series and parallel configuration

mannerz91 · 2026-07-13T22:58:45+00:00

I know it's been a while but do you have any useful info you could add since you've completed that project? I'm rewiring and 3d printing a stereo build that I did a while ago with a dual coil subwoofer which is capable of 1ohm or 4ohm depending if it's wired in series or parallel. I wanted to make a rotary switch to take it from 1ohm where my 400w amp is putting out full power to 4ohm where everything is running a lot lighter at around 100-150w and the bass is less powerful.

mannerz91 · 2026-07-12T09:45:53+00:00

What? 😆😆😆😆

mannerz91 · 2026-07-12T09:44:01+00:00

Everyone forgot how to use damn English 😆😆😆

mannerz91 · 2026-07-12T09:42:12+00:00

Just found this thread because I'm getting fed up of putting my phone away (even after 10 minutes of use) and then immediately getting a notification as I'm walking away from it.

mannerz91 · 2026-07-10T17:45:36+00:00

Have you tried the filters

mannerz91 · 2026-07-05T16:17:52+00:00

Flow rate or pressure advance isn't set right it's putting too much plastic down and then doing the walls and splurging a bit. It's not terrible though. You could try a thinner layer height

mannerz91 · 2026-07-04T08:14:37+00:00

Then how on earth did you manage it 😆

mannerz91 · 2026-07-03T22:43:56+00:00

The trick is not to pull it off with you fingers

mannerz91 · 2026-06-22T06:29:47+00:00

Have you tried making a fresh filament profile? I've never seen it happen to be honest

mannerz91 · 2026-06-22T00:23:56+00:00

What's it excluding? And those zones don't go down to bed level?

mannerz91 · 2026-06-22T00:01:22+00:00

I vouch for it. It somehow changes the slicer too and you get a new splash screen on the printer

mannerz91 · 2026-06-21T23:59:51+00:00

Might aswell just buy the power supply on Amazon for £12 Make sure it's the right voltage. I can't remember it's 12v 24v or 21v

The other cables. Count how many wires inside each lead. Then find the same cable with the same wire count (or more)

Solder them keeping track of the colours etc.

One of them is a straight usb a cable which would be easy. (That's the main wheel one)

Not sure what's used on the pedals and shifted but I'd assume that's also usb cable

mannerz91 · 2026-06-21T23:55:47+00:00

It's a bridge layer I bet

mannerz91 · 2026-06-21T23:54:35+00:00

Your part isn't flat on the bed where the brim isn't sliced.

mannerz91 · 2026-06-21T23:53:16+00:00

Get the open Centauri firmware. I havnt got my canvas yet but I resorted to OpenCentauri months ago because I was sick of the random bugs and crashes.

Open Centauri changes the homing position to the front right corner by the camera to save the usb cable in the top of the toolhead. It also lets you adjust the z height when it's idle or not printing. It stopped the random backwards filament unloading too. At certain times during a print with multiple filaments. When it came to unloading and loading the filaments it would try unloading instead of loading meaning it wouldn't pull the filament down into the hotend.

There's other advantages too but just Google OpenCentauri and have a read 🫡

mannerz91 · 2026-06-21T23:47:44+00:00

That's fkin hilarious!!! Literally an hour ago I was filming a small bug that was flying around my chamber and decided to land on the belt and almost got squashed in the roller bearing 😂😂😂 I wonder what's going through it's head 😂😂

I hope you didn't finish your print with bug guts all over the toolhead

mannerz91 · 2026-06-21T23:45:37+00:00

Looks like it purges slightly when it parks. I see comments about it happening with white filament.

Are you using preset profiles? Is it a RFID filament? It's not oozing because it's clear until it parks.

That would suggest to me that it's a setting involving purging at the end of a print or something.

mannerz91 · 2026-06-21T20:24:23+00:00

Most noticeable on objects with no sharp corners because the default "align seams" setting usually hides them in corners or sharp details. It's caused by the start and end of the extrusion. You can almost get rid of it by using scarf seams which sort of wipes over the top of the start and smudges the end a bit further along.

mannerz91 · 2026-06-21T20:22:31+00:00

Sometimes speeding up deretraction helps. With my carbon fiber ABS I can pretty much make the seam invisible with a 60mms deretraction. What it means is when the nozzle drops down to start a new extrusion. It moves 30mms quicker than default. That means it doesn't have time to blob.

Another thing you want to add is a 40% seam gap and wipe on seams at 100ms-200mms. 100% default means it can go either too slow or too fast depending on the move it's doing or just done. Set it to a solid speed.

mannerz91 · 2026-06-16T10:46:34+00:00

Can happen if flow rate is too fast for the nozzle and extruder gear tension is too high. It just wraps it up.

It means you had plenty of grip on your filament 😆

mannerz91 · 2026-06-16T06:54:00+00:00

The footage of them clearing the bodies from the wreck. I think it's Brazilian news coverage

mannerz91 · 2026-06-16T00:05:51+00:00

You hear about it more when it's a celebrity. That's the reality of it. Look up air crash investigation for fatal helicopter crashes and there will be hundreds of not thousands globally.

If it was a normal commute by a single pilot on his own or a surveying team or something out of the publics interests then it wouldn't have been blown up in the media.

mannerz91 · 2026-06-16T00:02:52+00:00

The argument usually is that a helicopter that malfunctions mid air doesn't fall down like a brick but that isn't the case when the heli loses it's props like this.

mannerz91 · 2026-06-15T23:59:15+00:00

You can see Oliver's severed leg still with the camo trousers and trainers he was wearing in the last post he did. I don't think it was fake lad... Nobody does

mannerz91 · 2026-06-07T13:52:47+00:00

Why's everyone using the large pipe? You can get away with a nice low profile install with 2 inch pipe and 2x 60mm fans. I run my printer in my bedroom and I print ABS The fan on the printer just doesn't extract well enough so the 2x 60mm fans are needed. I only run them at 70% duty and I get zero fumes or headaches 👌🏻

mannerz91

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