Tag: 3d printing

Improved OpenSCAD battery holder script (BigClive) (WHL #97)

A while back, BigClive used to share OpenSCAD snippets in a lot of his DIY videos, allowing viewers to print (and modify) things that he figured out for the specific video. One of those was the battery holder script, a simple array of square-packed cylinders that were hollowed out from one side, in order to, well, hold things like batteries, or hex bits, or screwdrivers, or …

I recently had the urge to store a bunch of batteries in a nice way and began modifying the simple 33-line script. Couple of viewers already suggested changes like center holes, and since OpenSCAD scripts are just plain text, they were able to share their modifications in the comment section. […]


Ancient Sunlu PLA+ yellow (WHL #90)

After all that Geeetech bashing, here’s something for you, Sunlu fanbois! Sunlu PLA+ yellow!

Dammit, spoiled the results already…

Okay, here’s the deal: That stuff was given to me by a colleague who told me this is the worst printer filament he has ever laid eyes on. It’s stringing a gram of material for every gram of material printed. And I said: OK… (challenge accepted!)

The very same guy also gave me one of those half-kg spools of TPU quite a while ago and said it’s difficult to print and doesn’t look all that nice. […]


More GEEETECH 1kg 1.75mm 1KG(2.2LBS) Pure PETG, 3D Printer Filament, Vacuum Packaging,Tangle-Free, 3d printing materials (WHL #89F2)

Results are in!

In the last blog post #89, I showcased my rookie mistake of printing large objects across two spools of filament. Yeah, it still sticks together, but there’s warping (hence a large crack) and a color mismatch.

Since then, I printed a couple more of these ducts. And I contacted Geeetech (no complaint or formal refund process, just plain messages to the seller) in parallel to resolve this issue.

Let’s start with the mail exchange. Generally, those are very nice folks. Some sellers require significant pressure to offer a customer-friendly solution; most of the time, those sellers *know* they’re selling subpar shite and aren’t too keen on keeping an unsatisfied customer. […]


Batches of GEEETECH 1kg 1.75mm PETG 3D Printer Filament Vacuum Packaging Overseas Warehouses Fast Ship (WHL #89)

Well, this might be obvious for everyone that has been into 3D printing for a long time, but I completely fell for it.
For a current project that’ll take a couple kilograms of material in chunks of like 500 to 700g, and the recent singles day/11.11. sales frenzy, I bought (among other spools) 3x 1kg of Geeetech PETG white. I previously bought a single roll of that exact “700-001-1310” stuff, so I figured I could just print one of the parts for as long as the filament lasts, and then simply switch over to the new spool.

Of course I was mistaken. […]


Bosch Gourmet 8400 oven mode selector switch repair (Dreefs 4-DPS/260) (#P31)

A long, tedious blog post for today. This has been in the making for about 9 weeks and I’ve been looking for parts for another year or two. Pictures have been taken on multiple occasions in multiple locations, so it’s a hotchpotch that somewhat reflects the process. This is the use case for the 3D model generation of the WHL #61 post.

Our Bosch Gourmet 8400 microwave and baking oven has been there for as long as I can remember. It’s a huge and darn heavy thing for a microwave oven (27l volume!), and rather small for a baking oven with grill (broiler) functionality. […]


Oral-B toothbrush stand generation upgrade (#P22)

After just eleven years of excellent service, my Oral-B 25.526.3/”9500 Triumph” electric toothbrush died from mechanical failure – the gears went a bit toothless (oh the irony), so while vibration was still on, it wouldn’t rotate the brush. I did exchange the NiCd battery some years ago, but the drive cannot be disassembled, so that was a total loss. Meh.
At the time I spent 70€ and this model was on the higher end of the Oral-B product line. 11 years later even the cheapest models are lithium battery based and I would expect essential technology has trickled down to the base models. […]


3D models now available on thingiverse (#E12)

Quick note mixed with a bit of a “this is stupid” rant – as there’s quite a bit of 3D models coming in the near future (say…1.5 meters of them), I decided to put that stuff on thingiverse as well. It’s still hosted and linked here on this blog, but having it duplicated on an easy-to-search platform like thingiverse might be helpful for people with limited Google-fu. It’s also a nice source of somewhat standardized renderings from those parts, which I exploited in the previous post already.

Now to the “stupid! […]


DIY USB Micro panel mount connector (#P13F1)

Oh yeah, that has been sitting around for a while…

Back in June there was a post about two connectors (#P13), and there was one more similar item that just happened to be printed a few days after that post. As far as I can tell, I never made a separate blog post about it.

Well, as there’s another short post coming later today, here’s that little item as a double whammy for today. The USB Micro-B panel mount bracket thingy.

Unsurprisingly it’s closely related to the regular USB-A panel mount case, just a little bit smaller to fit the female end of a USB Micro-to-Micro extension cord. […]


MikroTik wAP ac door jamb bracket (#P16)

$ThingsIWantedToDoForALongTimeButDidntUntilIPaintedMyLivingRoom++;

When upgrading my laptop to the QCA9880 3x3ac card, I had the need for an 3x3ac access point. I went for the MikroTik wAP ac at the time, my first dedicated AP, as I always was a FritzBox AIO dude. In the card review I said I wasn’t planning on in-depth reviewing the AP, but I still need to scratch a little on the surface here, literally.

The AP is sitting next to the excellent FritzBox 7362SL and in fact is sharing the power supply with it. As the MikroTik is a PoE device, it doesn’t have a fixed input voltage; instead, it’s a 11-57 V wide input (“12W max”). […]


HP 6644A refurbishment – front panel, back protector (#P14F1)

Time to finish the HP 6644A revamp!

tl;dr for the last post: Here’s where I stopped refurbishment after cleaning and replacing caps and fan:

First off, those leads stick out quite a bit at the back as well. I can’t really say which diameter I used, judging from the yellow cable lugs these were 4mm² for the power lines and 1.5mm² (red lugs) for the sense lines. Apart from not fitting the old protector, that one already has seen some damage. Probably because it is so tiny…

So: Redesign. Twice, as the first version that closely resembled the original design had really flimsy legs that suffered the very same fate. […]