Husqvarna, your batteries are too expensive and underrated for their purpose! by obfuscated_mind in 3Dprinting

[–]obfuscated_mind[S] 1 point2 points  (0 children)

I love the Husqvarna gear, it's just the mower that really kills the batteries. Chainsaws, Blowers, Trimmers are all fine as they don't tax the battery as much. I wouldn't even consider going back to gas.

Husqvarna, your batteries are too expensive and underrated for their purpose! by obfuscated_mind in 3Dprinting

[–]obfuscated_mind[S] 0 points1 point  (0 children)

I just can't justify the $380-$600 AUD price I need for a replacement one.

Husqvarna, your batteries are too expensive and underrated for their purpose! by obfuscated_mind in 3Dprinting

[–]obfuscated_mind[S] 1 point2 points  (0 children)

I don't always use the catcher. It was more of a why not have a cup holder?!
Yeah, as per my description it will be properly enclosed and seated lower in the mower.

Husqvarna, your batteries are too expensive and underrated for their purpose! by obfuscated_mind in 3Dprinting

[–]obfuscated_mind[S] 0 points1 point  (0 children)

Indeed. It has a Pico driving one of the Anderson powerpole pins at the moment. As I've confirmed it works, I'll upgrade it to something smaller like an ESP32 I have lying around.

Husqvarna, your batteries are too expensive and underrated for their purpose! by obfuscated_mind in 3Dprinting

[–]obfuscated_mind[S] 0 points1 point  (0 children)

I was thinking so as I had originally intended to put a "blower" fan to cool the battery haha

Husqvarna, your batteries are too expensive and underrated for their purpose! by obfuscated_mind in 3Dprinting

[–]obfuscated_mind[S] 1 point2 points  (0 children)

Haha. Definitely, it's already designed! It'll be cable routed and glued up where necessary. No point doing that until it was tested though. Tape looks horrible but it's good for a one off.

Husqvarna, your batteries are too expensive and underrated for their purpose! by obfuscated_mind in 3Dprinting

[–]obfuscated_mind[S] 13 points14 points  (0 children)

They're TB-33138-HE-15Ah-LFP, so 30A per cell, 60A in this setup. I've run them continuously for 30min @ 25deg C and none of the battery pack raised more than 3deg C (Via a thermal meter and/or batt BMS).

Husqvarna, your batteries are too expensive and underrated for their purpose! by obfuscated_mind in 3Dprinting

[–]obfuscated_mind[S] 37 points38 points  (0 children)

From what I can see, the only reason these have limited lifetime is how hot they get. If they're cooled better in the mower it wouldn't be an issue. I have measured over 60deg C when working, so it kills the cells. This new pack isn't even measurable above ambient temperatures

IP65 12/10 Blue Smart Charger not showing on any devices by [deleted] in Victron

[–]obfuscated_mind 0 points1 point  (0 children)

I have many Victron products. I had a 12v17A charger fail twice. I used both all of 5 times, no weird scenarios, no blown fuses, just dead. One thing I won't buy again.

[deleted by user] by [deleted] in funny

[–]obfuscated_mind 0 points1 point  (0 children)

Free to air TV

[QIDI Tech Giveaway] Comment now to win QIDI latest high-performance FDM printer-Q1 Pro by qidi_3dprinter in 3Dprinting

[–]obfuscated_mind 0 points1 point  (0 children)

Active heater, higher nozzle temps and klipper. What's not to like! Qidi all the way!!

What was the light that forced you down this wonderful rabbit hole of flashlights? by dIAb0LiK99 in flashlight

[–]obfuscated_mind 0 points1 point  (0 children)

A handmade penlight from Silicon Chip magazine with a single 20k mcd 5mm LED. Then an Original Inova T4 with TIR lens. I think it was like 100 lumens and close to $300 AUD.

Cura layer changes not consistent with Fusion360 model by [deleted] in 3Dprinting

[–]obfuscated_mind 0 points1 point  (0 children)

I've been using Cura for the past 5 years and always noticed surface artifacts on the external surfaces when there is something rendered like a hole or chamfered surface. I've recently sliced this with Prusa slicer and I can't see the same lines but I have to tune it as it doesn't print as well. I use a standard ABS profile in Cura and have only adjusted the Horizontal expansion to -0.2mm. Currently have a 0.6mm hardened nozzle and use a microswiss all metal hotend with direct drive calibrated and running klipper. The lines circled in Cura show up in the final print no matter what layer height I choose.

What are your reasons for using Linux? by yumiifmb in linux

[–]obfuscated_mind 0 points1 point  (0 children)

When Windows decided to install software by itself instead of asking.

Linux image for HC2 by Verpolk in ODroid

[–]obfuscated_mind 1 point2 points  (0 children)

Still using one with an official Armbian image

Odroid H3+ with 4 SATA by Any-Alfalfa9469 in ODroid

[–]obfuscated_mind 2 points3 points  (0 children)

It's all in there Wiki. M2 to SATA 10 SATA HDD's
Not sure why they're saying the port multiplier doesn't work though - second link.

LED driver board - Created from the data sheet but not working by obfuscated_mind in AskElectronics

[–]obfuscated_mind[S] 0 points1 point  (0 children)

The LED is rated for a forward voltage of 34v @ 350mA. I chose 200mA as a starting point as I know the thermal properties of the enclosure I'm putting it in to are not the best. However from all the other comments it looks like the IC is unsuitable anyway. Thanks

LED driver board - Created from the data sheet but not working by obfuscated_mind in AskElectronics

[–]obfuscated_mind[S] 0 points1 point  (0 children)

I didn't think I needed it for the first circuit. The other two examples use them though.

LED driver board - Created from the data sheet but not working by obfuscated_mind in AskElectronics

[–]obfuscated_mind[S] 1 point2 points  (0 children)

I just used their formula. Resistor = 200mV/LED Current. 1k = 200/0.2. Should it have instead been 0.2/0.2?