tjhowse

Travis Howse. Brisbane, Australia. Father, husband, engineer, hacker, cancer hadder, FOSS dork, he/him. Currently helping to advance EV charging infrastructure with Tritium Power Solutions. BE (Mechatronic)

Youtube: https://www.youtube.com/tjhowse
Github: https://github.com/tjhowse
Homepage: https://tjhowse.com
Sailing blog: https://sailing.tjhowse.com

Public Key

npub1dujupc0r2xn082752e6mteg44jutgn4ydwwv0mps4ks6kjhdp8nsu2nvwz

NIP-05 Address

tj_at_howse.social@momostr.pink

Profile Code

nprofile1qqsx7fwqu834rfhn4029vad4u526ew95f6jxh8x8asc2mgdtftksnecpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsx86jfe

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub1dujupc0r2xn082752e6mteg44jutgn4ydwwv0mps4ks6kjhdp8nsu2nvwz

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Last Notes

2026-04-05 03:03:13 UTC

Bought a pineapple on impulse yesterday. Incredible decision. I love pineapple. I must resist urge to eat the entire thing in one sitting.

2026-04-05 01:55:31 UTC

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No joke I have the Artemis II livestream on in the background but mastodon was in the foreground. The narration said something like "On you screen right now is the projected flight path for the closest approach to the moon..."
I looked up and saw your post and my brain bluescreened and rebooted.
I need another coffee.

2026-04-04 10:05:17 UTC

Status update on our LOTR gradual re-watch with the kids: Grandpa fixed the king.

2026-04-04 03:54:59 UTC

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haha no, it was mostly for a shitposty response to a friend who had a jar of PB that had separated. He built a jig out of Lego to rotate the jar around to emulsify it.

2026-04-03 21:50:26 UTC

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it does not

2026-04-03 12:37:41 UTC

ROTATE
THE
PEANUT
BUTTER
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/340/806/291/800/607/original/a884e1645de02158.mp4

2026-04-03 10:18:22 UTC

A de-chonked version for printing tomorrow. In the meantime my bandsaw is full of melted PLA and the big stepper is reasonably securely mounted.
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/340/254/684/734/232/original/fcf73d3a203cf5cc.png

2026-04-03 08:41:22 UTC

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It's an i3 aluminium plate variant reprap. One of Prusa's early designs. It was printed on my old printer.

2026-04-03 07:04:52 UTC

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Turns out: Too much chonk. Made it 10mm too high. Sigh.

2026-04-03 06:26:55 UTC

This chonky 8 hour print is nearly done. 50% infill for increased chonk.
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/339/345/835/458/092/original/ffdbe1eb7a5a471d.png

2026-04-03 05:56:42 UTC

This cold can choof off. There is so much snot.

2026-04-03 03:11:17 UTC

I can finally start doing the fun stuff with my #lathe. By which I mean "more lathe improvements".
https://youtu.be/v_Xlgs-Bak4
#diy #machining #mechatronics

2026-04-02 00:05:19 UTC

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The best I can think of is generic "don't be a reckless dickhead", and I assume we already have laws for this.

2026-04-02 00:04:37 UTC

@npub1zkj…jt8t I'm writing an email to Di Farmer about e-mobility. You've given this topic a lot more thought than I have; what would you recommend as reasonable upper limits to footpath-legal e-bikes and scooters?
Power limits are bad, because heavier bikes need more power to accelerate. Speed limits are bad because regular pushbikes can already go 40km/h on the flat without too much effort. Acceleration limits seem least bad, but field enforcement is nearly impossible.

2026-04-01 12:28:33 UTC

Artemis II launch window opens in 10 hours! Right at the start of an end-of-term school event for youngest! Ack!
https://www.youtube.com/watch?v=m3kR2KK8TEs

2026-04-01 12:21:47 UTC

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It's nice to learn about interesting stuff happening between the "AI will invent the torment nexus and/or drink the oceans" stories.

2026-04-01 11:47:20 UTC

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Reading the FAQ in this repo makes me pity and respect Terry Tao in equal measure. It's a master class in condensing hours of soul-wracking frustration into a document. It tries to gently guide people to the conclusion that their yes-man machine might not actually have discovered new maths.

2026-04-01 04:43:00 UTC

It fits! Huzzah!
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/327/609/902/782/381/original/79877103c57b59cd.png

2026-04-01 01:33:36 UTC

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Do... do a fart in it.

2026-04-01 00:32:15 UTC

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The framework 12 comes close!

2026-03-30 03:09:18 UTC

I'm certain my kids would love to watch Holy Grail, but I'm not sure I have the fortitude to withstand the next 40 years of them quoting it to me. I have the opportunity to break the cycle, but at what cost?
#montypython

2026-03-29 23:04:39 UTC

So there's something wrong with the belts I ordered for my electronic leadscrew project.
Turns out I got some units wrong during the belt length calculation...
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/314/949/924/318/817/original/b5a0d21158f185e0.png

2026-03-29 12:30:11 UTC

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A wilfully annoying gift gives both ways! https://wiki.tjhowse.com/projects:solid_steam_card:overview

2026-03-29 12:15:36 UTC

I have a hobby of making annoying presents. Once I stamped a gift card code on a piece of steel and welded another piece of steel over the top, then turned it down into a smooth cylinder. Or a microcontroller with an accelerometer and a screen that only showed the code when it was in free-fall.
I found this photo of me apparently making one of these gifts by setting the code in concrete. I have no memory of doing this, or who I gave the present to. The code is claimed, so it must be solved.
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/312/403/200/531/473/original/8ac04edebb0ac218.png

2026-03-29 11:27:54 UTC

One of my favourite youtube creators, KRAZAM, has started making longer-form content and it has consistently been pretty great. Lots of inside jokes for software developers to laugh/cry at. Good stuff.
https://www.youtube.com/watch?v=KIZt9YPAPZo

2026-03-28 01:59:19 UTC

C'mon GCC. You can probably work out what you need to do when I refactor code and end up accidentally calling abs(uint64_t). Take a guess.

2026-03-27 03:04:03 UTC

What's the feel for "ceramic" paint protection coating on new cars? Scummy upsell or necessary mitigation against Queensland UV and fruit bats?

2026-03-26 22:57:58 UTC

I am very slowly learning that I can get away with quite bad #lathe crimes and still get good results. Look at that mirror finish! Lovely stuff.
Please ignore the charred milling bit. That is less lovely.
#machining
https://youtu.be/eTrFkrRKlJY

2026-03-26 05:03:03 UTC

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This machine I've just installed is my new work laptop. I am now completely free of windows on all the computers I touch on a daily basis. Feels good.
Now I've just gotta cut over my wife and kids' computers. My wife ran mint for years on her NUC until it died. Worked well.

2026-03-26 03:29:41 UTC

Oooh that's one of my favourite radio buttons of all time. Mmm. I could click it all day.
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/293/350/689/976/239/original/4b97730da5685ae5.png

2026-03-26 02:55:56 UTC

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I'm juuuuust old enough to catch the tail end of dialling into a BBS maintained by A Guy Dad Knows from Work, and playing with Teletext. In some respects we had it right back then: Small groups, administered by passionate volunteers.

2026-03-26 02:52:40 UTC

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Very cool! I really want to see a modern photo of the same perspective for comparison.

2026-03-26 02:32:04 UTC

There are men in my internet. RIP availability nines.
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/293/121/699/612/844/original/327d6fe47c84e314.jpg

2026-03-25 23:16:18 UTC

I cherish my inner 15 year old who sees a download running at 20MB/s and loses his goddamned mind. His idea of a good download speed is 4kB/s when downloading Yoda_Weird_Al_Yankovic_CD_rip_64kb.mp3 off emule.

2026-03-25 10:39:30 UTC

Damn damn damn damn. My shockz bone conduction headset has died in the left ear. Same failure mode as my last pair two years ago. I'm just over a month out of warranty. Spewing. Had to listen to podcasts at the gym with right ear only. Maddening.

2026-03-25 04:58:52 UTC

PAKIJJJJJJJJJJJJJ
This is one of the sexiest pieces of mechatronics I've ever held.
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/288/036/306/443/924/original/25e19b9cefdb29b3.png

2026-03-25 02:50:41 UTC

It's always insulting when you're singing "An ode to the cutest dog on the planet" and she wanders out of the room halfway through the second verse.

2026-03-25 01:41:16 UTC

Damnit. I ordered some HTD-3M pulleys for my lathe upgrade, and a range of belt lengths because I wasn't sure exactly what size I needed.
Unfortunately I seem to have left my brain off when placing the order, because I've ordered belts that have fewer teeth than the biggest pulley. Sigh.
Anyone got a favourite supplier of HTD-3M belts in #Australia, preferably #Brisbane? I need 15mm wide, and tooth counts between 83 (249mm) and 92 (276mm).

2026-03-24 23:41:18 UTC

PAKIJJJJ
This is the gigantic servo motor for my lathe. Excite excite excite.
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/286/788/836/661/335/original/602bf7417de9d236.png

2026-03-24 11:38:59 UTC

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Likewise! It was a huge shock, especially after reading the Martian and thinking "OK, Andy Wier has one type of story he can tell, but that's OK because it's hand-crafted just for me."

2026-03-23 00:58:06 UTC

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Hey, not bad! Depending on how much they spam you, and how good the snack bar discount is. A dangerous proposition for me.

2026-03-23 00:55:41 UTC

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Incredible work. I do bike+run+swim at the gym twice a week. I just crunched my numbers assuming a sustainable pace for each leg (about 80% of current PB) and came out to 3:16. I'm 40, and I am certain I would hit the wall long before finishing.

2026-03-23 00:41:52 UTC

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Though incredibly a pre-run advert for audible or something spoiled a massive act 1 twist for the movie immediately following. Just insane.
They'd already spoiled it in the trailers, but still. A terrible narrative decision, but presumably a good marketing decision?

2026-03-23 00:33:03 UTC

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Absolutely! Our local cinema does $10 adult tickets, so it was an easy choice.

2026-03-23 00:29:01 UTC

My wife and I saw Project Hail Mary last night. We're both huge fans of the book, and can recommend the movie. It was really good! I feel they made the right cuts to the narrative to fit within a reasonable runtime.
The editing was a bit frantic in parts. Editors these days seem to favour sequences of shots that last about 20 frames each to invoke a sense of panic or urgency. Use a different tool, please.

2026-03-21 00:36:21 UTC

I should not have eaten that extra half a pancake. Bluurrrggg.
For my future reference: 5 is the correct setting for the big induction hob with the cast iron pan.

2026-03-20 11:04:57 UTC

Bugger. I unplugged the stepper motor controller from this little waveshare esp32-c6 LCD board and it instantly died and won't boot. AUD$32 down the drain. :(
It was just logic level signalling, but there was apparently enough spicy pixies going around to make it unhappy.

2026-03-20 00:07:23 UTC

I got a cheap Aliexpress DRO and installed it onto my new lathe! It all went pretty well! I cadded up some brackets in #freecad
Drilling holes into the cast iron bits of my lathe was fairly terrifying, but being able to measure cuts down to 0.005mm without reaching for the calipers is extremely useful.
#diy #lathe #machining
https://youtu.be/lSKLbnEP5lQ

2026-03-19 06:54:59 UTC

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I've got a big bag of assorted practice padlocks. Some have cut-outs to see the pins, some have matching keys, many do not. I can loan them out if required.

2026-03-19 04:21:20 UTC

I am waiting for many pakidge:
☐ 0.6Nm servomotor and 36VDC PSU
☐ 1000 CPM rotary encoder
☐ HTD3M belts and pulleys
☐ Waveshare ESP32 LCD board
☐ Magnetic swarf wand thing
I am looking forward to this new project very much.

2026-03-18 12:17:10 UTC

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I don't know what kind of advertising revenue radio pulls, but those talent contract numbers are bonkers.

2026-03-18 06:57:54 UTC

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42...

2026-03-18 06:46:12 UTC

Playlist: *a banger*
Me: "Hell yeah" *turns up volume*
Me: *remembers about chronic hearing loss, and being 40 years old*
Me: *sadly turns volume down again*

2026-03-18 06:41:11 UTC

I haven't listened to the radio since 2004, so I'm not really sure what's going on with these Kyle and Jackie people. They seem upset, though.
Also being paid 100 million dollars to talk on the radio? Bloody hell.

2026-03-17 06:59:33 UTC

My TI-83 Plus has magically recovered itself! Hurrah! Last week it was refusing to turn on.

2026-03-17 06:56:09 UTC

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😬
Can you plug into power, then hold down the power button until something happens?

2026-03-17 05:54:04 UTC

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I wish I could remember any more details. I think it was an AMD thing?

2026-03-17 04:07:05 UTC

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Oh yes. And I start doing the mental arithmetic, weighing up my responsibility to this person, to myself and to society, to work out whether it's worth the hazards of offering advice.

2026-03-17 00:44:54 UTC

Ancient fedizens, lend me what remains of your memories:
About 20 years ago I remember playing Half-Life 1 and finding that a bunch of object and character geometry looked like it had been inflated slightly. Not scaled up, but rounded and puffy.
After some fiddling I worked out that the GPU driver had shipped a new "geometry smoothing" feature that tried to interpolate and smooth models, leading to some really wonky effects.
Does anyone else remember this? I can find no digital trace.

2026-03-16 06:23:37 UTC

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I think I can be blamed for the last three weeks' weather. It's my new solar battery.

2026-03-16 03:04:13 UTC

Had dinner with some mates at DooDee Boran in the #brisbane CBD last week, just down the hill from the pancake manor. It was really great. I had a beef massaman, superb.

2026-03-15 12:59:48 UTC

"Good jesus christ. Fucking hell."
All I had to say when I just saw this bird.
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/233/302/439/977/951/original/abf5738f2404d314.mp4

2026-03-14 13:22:17 UTC

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They're fortunately still pretty common in Aus. We do our little weekend shop there.

2026-03-14 09:40:11 UTC

My Saturday measurably improved by an IGA run.
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/226/859/693/377/797/original/d751be30a35982aa.png

2026-03-14 08:59:53 UTC

I just set a new deadlift personal best wooooo.
#weightlifting

2026-03-14 05:29:53 UTC

As a huge fan of the first game, I am really loving Slay the Spire 2. It's exactly what I wanted. So many nice little improvements and flourishes on existing themes. Good stuff.

2026-03-14 03:01:19 UTC

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perfect sleep-in weather is coming.

2026-03-14 01:25:37 UTC

Really nice weather in #brisbane today. Sunny and windy, not too hot. Right in the sweet spot.
#brisbaneweather

2026-03-13 05:00:23 UTC

I had a time making a part for my new lathe. It was educational.
#lathe #machining #diy
https://youtu.be/XdWNAAcdUzw

2026-03-12 23:11:59 UTC

The day has just begun and it's already 28°C and 76% humidity in my office. Blehg.
#brisbane #brisbaneweather

2026-03-11 12:40:33 UTC

Lathe crimes absolutely pay. This came out better than I could've reasonably hoped. Very happy.
I had to chop some of the metal away to hold tools at the correct height. I tried to use a HSS milling bit but these tool holders turned out to be hardened steel, and the HSS just got hot and angry. A carbide boring bar in the chuck made short work of it.
#lathe #diy #machining
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/210/577/581/193/682/original/22ca61b5c2be54e9.png

2026-03-11 07:01:48 UTC

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What channel are you on? Brisbane switched over to MediumFast about a year ago. I'm not sure what channel Melbourne settled on.

2026-03-11 03:59:50 UTC

Hm. I am going to have to switch to having leftovers for lunch until the freezer space crisis has passed.

2026-03-11 01:34:08 UTC

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```// The rest of this was vibe-coded with robocrab lmfao yolo```

2026-03-10 11:41:24 UTC

I am doing #lathe crimes and there's nobody here to stop me.
Turns out I don't need to buy a carbide endmill after all!
#metalworking
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/204/681/968/924/154/original/6c4d385993247aec.jpg

2026-03-10 04:27:53 UTC

I recently hit three years of #weightlifting! Woo!
It's very fun to see the numbers go up. I'm very close to getting back up to setting personal bests again, after the bone cancer valley.
I can highly recommend weightlifting for health if you are a professional seat warmer, like myself. It solved my lower back problems handily.
I should probably upgrade from 5x5 stronglifts to a more nuanced programme, but eeh; it works well enough.
#fitness
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/202/964/980/411/862/original/49b3640a93776506.png

2026-03-10 00:14:47 UTC

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!! Gonna have to try that next time. Perhaps microwave, halve, then put it under the broiler/grill/gorilla.

2026-03-10 00:11:20 UTC

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Since I discovered microwaved whole potatoes my carb intake has increased at least 2x. Stab holes in skin, 7 minutes, flip, 7 minutes. enjoy. The only downside is the lack of crispy skin.

2026-03-09 22:14:38 UTC

Uh-Oh, we're getting into "Bed is too comfy and warm to get up" weather.

2026-03-09 12:55:34 UTC

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Exactly the same as inside! I had my big office window open so I can hear the rain and butcher birds singing.

2026-03-09 05:09:33 UTC

D A M P
#brisbaneweather #brisbane
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/197/485/899/496/607/original/d4ede8dd43849439.png

2026-03-09 03:28:56 UTC

#steelseries headphones continue to impress for their repair-friendliness. Eldest broke the plug on his headphones by getting up from his computer, forgetting he was wearing them. I was able to easily solder on a new plug because the silkscreen on the PCB labelled the termination points for each core.
#righttorepair #diy #repair
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/197/081/324/037/240/original/2e3e2cbd6c202784.png

2026-03-06 23:09:36 UTC

It turns out that a great tool for modifying my #lathe is itself.
I'm having a great time making these little videos as I lean stuff about machining. It's a fun journey.
#machining #video
https://youtu.be/igb5MyrKVH4

2026-03-05 05:18:57 UTC

House smell status: delicious.
#food
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/174/874/023/152/202/original/d983efb71d833232.png

2026-03-04 05:22:35 UTC

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Hahaha us too. We used to play the hold music from the phone system in the lab. I got sick of 2000s pop music and adverts and snuck my iRiver MP3 disk player into the utility cupboard and patched it into the phone system on-hold music input.
I got into a bit of trouble from that. I got rumbled when Ride of the Valkyries started playing.

2026-03-04 04:50:02 UTC

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I had a similarly dull job as a teen, working in a coal lab. Weigh the coal, burn the coal, write down the number. Weigh, burn, write, weigh, burn, write.
Even at the time I thanked my lucky stars I wasn't working retail.

2026-03-04 04:28:33 UTC

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Do you have a pinecil? I'm reasonably sure they can ask for 28V.

2026-03-04 00:33:55 UTC

Woo! My DRO arrived! All the bits are present and correct. Can't wait to get this fitted.
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/168/043/802/623/269/original/b50a900db27eaa4b.png

2026-03-04 00:20:56 UTC

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So shiny!

2026-03-04 00:02:25 UTC

All hail the inanimate bronze rod!
It looks very pretty. Looking forward to making some parts with this. The first use will be some propeller adaptors for use in salt water.
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/167/960/417/792/760/original/1f33a696e66f2559.png
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/167/961/672/545/850/original/dc986842e990f2a8.png

2026-03-03 23:40:52 UTC

Well this is fun. The output of LLMs can't be copyrighted in the US.
Does this mean all LLM output is considered public domain, as far as the US is concerned?
https://pluralistic.net/2026/03/03/its-a-trap-2/

2026-03-03 23:07:42 UTC

#PAKIGE
More lathe bits. Hopefully they arrive intact. I'm also expecting some bronze bar stock to arrive today.
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/167/749/029/901/732/original/d642d005536a1799.png

2026-03-03 04:46:01 UTC

STOP CORRECTING ME YOU FUCK.
#microsoft #teams
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/163/413/178/722/508/original/3a82788fe829a920.png

2026-03-03 04:21:25 UTC

I have a #pakige en route from Aliexpress. It's a DRO for my lathe. After placing the order I messaged the seller with the dimensions of the rails I need to fit my lathe. This was the process defined in the product listing. However the seller never acknowledged my message, so I fear I'm going to receive DRO sensor rails the wrong size for my #lathe 😬

2026-03-02 06:48:56 UTC

We've had one (1) good honest day of sunshine since the new #solar #battery system went in. There ought to be a law against this sort of thing.
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/158/237/335/214/077/original/4515212c830ada03.png

2026-03-02 03:21:19 UTC

New #lathe bits arrived! A chuck adaptor plate so I can mount my old 4-jaw chuck on my new lathe, a quick change toolpost, and a set of tool holders. The toolpost is about triple the size of the QCTP on my old lathe. Hefty!
#pakige #machining
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/157/417/136/510/523/original/48b8c2d88d5178a1.png

2026-03-02 00:17:44 UTC

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Hahahahahahahahahahhah. Fucking hell they're incompetent.
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/156/699/482/606/022/original/33c9f01744c616d1.png

2026-03-02 00:12:56 UTC

IT have migrated over to a new onedrive account. I'm going through and disabling sync on the old account and adding the new one. Let's see how badly this fucks up. I'm expecting shadow copies of all my files, and/or the cloud side just blatting over my local files. Should be fun!

2026-03-01 03:39:47 UTC

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No worries! I hope someone finds it useful. It'd need a little bit of work to make it more generally useful, currently it only listens for messages on channel zero, and the "ANZ" topic is hardcoded.
I have vague plans to check out #meshcore sometime, and write a similar bridge. However I couldn't find any published protobuf definitions for meshcore, so it's on pause for now.

2026-02-28 02:50:33 UTC

Negative electricity prices in SE QLD! Oven, cooktop and stove on! I'll be able to earn SEVERAL extra cents!
https://s3-ap-southeast-2.amazonaws.com/howsesocialmastodon/media_attachments/files/116/145/973/418/298/488/original/1d6e06d8e6b431e7.png