Tuesday, 15 September 2020

Snake Bush

Snake bush is so called as we found small 2 asp vipers there when we hadnt been in long. Back then it was maybe 2m deep and 4m long. We'd hacked it back quite hard a few years back as it was causing a fruit tree to not grow straight.

Today it was probably 4m deep, 10m long and around 6m tall. Removed up to 1m in depth in some places (it borders the neighbours) and maybe 3m off one end, and some of the blackthorn trees were 4+m. Plenty of bramble too. We had a good crop of both sloes and black berries this year.

Even with kevlar gloves, it was punishing work. About 2 man days providing about 2.5m3 of chippings.

Tuesday, 8 September 2020

Captur rear view mirror trim removal

 Another hour of my life...

Separate the 2 parts as best you can, and pass a small screwdriver under the tab nearest the screen (blue) and lever the yellow one gently down, using the blue tab as a fulcrum.

Releasing one seems enough to wiggle the other off. Then the lower cowl can be removed.




Sunday, 6 September 2020

Hedge cutter

 Removed bolts and spacers, cleaned with oil, removed burrs and sharpened with diamond file. Didn't remove from body.

Friday, 7 August 2020

Hedges

Cut the southern hedge back very hard on top. It's down to around 1.5m, to allow it to grow and be cut at 1.6m where I can just reach. Took off around 2m in places - the laurel had got way too tall. Around 4m3 of waste shredded in 1 hour. About 40m of hedge.

Parkside PFDS 33 B3 dead on arrival

 80€ at Lidl. I'm not a good (stick) welder, and a good welder will not make me a good welder. Looked at the more expensive one (140€) which does everything, but only seems to be sold in Belgium. Disposable gas bottles last 15 mins according to plenty of forums and at 25€ a pop, that wasnt going to happen. I could hire/buy a bottle, but I weld maybe 10 times a year. Gasless was the way to go for me. And after a bad start I'm happy with the results.

Set it up, turned it on, fan spins, but no wire feed.

The main circuit is very similar to this one https://www.instructables.com/id/MIG-Welder-Repair-and-Mods/   but it is AC output, and the speed control is more complex. All the pin numbers and AC correct on this one. https://www.reddit.com/r/Welding/comments/amsy7p/help_can_someone_please_explain_the_wireing/ Mine uses the welding supply to drive another bridge, and the drive is 24V, so ignore all the electronics. 

When you press the trigger, you complete the AC circuit from a small 12V trafo on the pcb, which drives a large relay and a small relay together, so you should hear a click. I had no click. The large relay feeds the large welding trafo. The small one runs the feed motor via a 4069UB chip, pot + SVF740 mosfet

I removed the PCB, and the 1/2A fuse, and put a 12V psu on the fuse and pin 4. Doesnt matter that it's DC as the next device is a bridge rectifier. Nothing. Tried on the relay.  All good. Kept working back and it was a dry joint on the bridge. Looked fine, but a quick re-heat and all good.

I repair quite a lot of stuff and this is by far one of the best pcbs I've seen in cheap gear for a long time. They could be fake parts, but they are branded, and the soldering is err good. I think it's hand soldered, but it looks like lead to me, not ROHS - way too shiny. A good layer of conformal coat too...all over the connector too! 


The dodgy one is on the right



harbor freight flux 125


I might look at changing to DC - see here 

https://www.mig-welding.co.uk/forum/threads/modding-a-really-cheap-swiz-ac-welder-some-help-please.85827/

Friday, 26 June 2020

Duvet

Winter duvet washed in 9kg machine. Largely dried in garage over night, then 2 days outside in the sun.

Monday, 1 June 2020

Woox smart plug




This was bought as a Woox 5402 from Amazon. It had Tuyau firmware, seen at boot on the serial port. There are a few sites that enable you to reprogram these without opening.
The stock FW needs an app and you need to register with Woox. A few people reckon they phone home.
It's nicely made.
I didn't want a system that can't operate when the internet is down, or even to register to use it, so I've blown in some simple MQTT FW.
15/2/25 gone over to ESPHome
Very similar to this. Pinout is good
https://sylvainzimmer.com/blog/2021/09/smart-plugs-tasmota/
Ground GP0 and apply power
YAML mainly from https://devices.esphome.io/devices/Zentec-Smart-Plug
led 2, button 13, relay 15