Today I acquired...........

[bigegg]

One of my pet hates, much prefer using the ones without a removable socket even though you need at least a 6,7 and an 8 mm

Do you not have a welder?

 

[25.4_mechanic]

And again some prey made .... or became prey ....


I had painfully noticed that I can't turn between tips at all, I had to change that:

I hadn't been looking for a lathe dog with protection, but if it comes in this flavour, why not - besides, you can leave out the protection.


Every now and then one likes to take a piece of GDR measuring technology, here 0.01mm over 10mm+:

But you can't just pass by a piece of West German production either ... Käfer ("Beetle"), 0.01mm over 50mm+:

Two Sandvik insert holders, one left, one right:

And a parting toolholder with knife, the manufacturer's name of which always makes everyone's eyes light up here and the price rise noticeably:

Oh yes, something new arrived today as a package as well:

A bilingual hexagon socket spanner set - let's see what it's made of.


Have a nice evening and a great weekend everyone,

Carsten

--

 

[minimutly]

A nice little laser distance sensor for a raspberry pi. I'm going to use it to detect if the pellet boiler's hopper is empty, and gauge pellet consumption.

Here it is being tested using a breakout board on a pi. It worked straight out of the box, just need to configure the i2c bus on the pi and add a python library and off you go.

View attachment 326721

Here's output from the example python file, I just moved my hand in front of the sensor a little to change the distance.

pi@boilerpi01:~/distance $ ./distance.py

Display the distance read from the sensor.

Uses the "Short Range" timing budget by default.

Press Ctrl+C to exit.

VL53L1X Start Ranging Address 0x29

VL53L0X_GetDeviceInfo:
Device Name : VL53L1 cut1.1
Device Type : VL53L1
Device ID :
ProductRevisionMajor : 1
ProductRevisionMinor : 13
Distance: 372mm
Distance: 77mm
Distance: 277mm
Distance: 611mm
Distance: 688mm
Distance: 174mm
^C
pi@boilerpi01:~/distance $

I'll make a few changes so it puts the output into a database so I can alert on nearly empty and graph usage. I can calibrate the sensor by letting the hopper empty then throw in a 15kg bag of pellets at a time.

I'm printing off a tiny case for the sensor then I'll wire it into the hopper tomorrow.

Mine is still on the desk looking back at me....
Must get to it sometime. Wonder if you could make a Pi dro???

 

[Maker]

Mine is still on the desk looking back at me....
Must get to it sometime. Wonder if you could make a Pi dro???

I was going to make one with some massive linear potentiometers I found but as with most things, never got the tuit. What's the output from a glass scale? Is it two square waves like a rotary quadrature encoder?

 

[Dr.Al]

I was going to make one with some massive linear potentiometers I found but as with most things, never got the tuit. What's the output from a glass scale? Is it two square waves like a rotary quadrature encoder?

Should be, yes, possibly plus a "reference mark" that is a single pulse at one specific location. If it's a decent one, each square wave / pulse will be sent differentially (i.e. two lines which are the same voltage-ish at one level and then pulled apart - one high, one low - for the other level - RS422 or similar). You can get ones with analogue outputs (sine and cosine wave with a period of the order of tens of microns), but they're much rarer. Then of course there are absolute ones, but they're really expensive and I'm sure you'd know if you getting one of those.

 

[daleyd]

Should be, yes, possibly plus a "reference mark" that is a single pulse at one specific location. If it's a decent one, each square wave / pulse will be sent differentially (i.e. two lines which are the same voltage-ish at one level and then pulled apart - one high, one low - for the other level - RS422 or similar). You can get ones with analogue outputs (sine and cosine wave with a period of the order of tens of microns), but they're much rarer. Then of course there are absolute ones, but they're really expensive and I'm sure you'd know if you getting one of those.

I used to use Lenze 9300 servo drives/ motors with sine wave encoders - resolvers was their official name. The motors used to go haywire when they went faulty which could be “interesting” with 3 tonnes of paper spinning at high speed!

 

[The_Yellow_Ardvark]

10lts of Fine Paraffin.
Half price as the Eco lables fell off.

Plus.

A bit of "Meths" and some blue paint for a on going project.

 

[Dr.Al]

I used to use Lenze 9300 servo drives/ motors with sine wave encoders - resolvers was their official name. The motors used to go haywire when they went faulty which could be “interesting” with 3 tonnes of paper spinning at high speed!

Sounds exciting! A resolve is a type of position sensor that uses windings (much like a motor in some ways) to generate the sine and cosine. Optical encoders can also generate sine and cosine (and in fact, most decent ones do). High performance optical encoders generate a sine and cosine from the dark and light lines (or gaps) on the scale and then interpolate the sine and cosine to give a resolution much finer than the period of the scale and hence the period of the sine and cosine.

 

[daleyd]

Ah yeah sorry I thought you meant a resolver, I have seen optical sine wave encoders but only once, it was on a baldor brushless servo motor about 20 years ago - it was used on a screen printer to raise a table for printing solder paste for ultra fine SMT work, it was super accurate as I recall. At the time I had just left a job working on kit from the 1960’s so it was like going from Stephensons rocket to an Apollo rocket for me

 

[bigegg]

10lts of Fine Paraffin.
Half price as the Eco lables fell off.


View attachment 326846


Plus.

View attachment 326847


A bit of "Meths" and some blue paint for a on going project.

Where do you get the meths in 5l jugs?
I've not been able to get it locally in anything bigger than 2l bottles (at a tenner a go )

 

[The_Yellow_Ardvark]

I was very lucky today.
A charity shop I visit put some items aside for me.
They were off to the recycling part of teh charity as they are not allowed to be sold in the shop.

So I made sure they did well out of my wallet.

Ignore the pigs and wax.
I got more brass weights, all ex GPO and will help complete some sets I have.

Small vice and as small jewlers saw.

Pair of gripping Screwdrivers.

A socket set.

Plus a bit of wood.

 

[The_Yellow_Ardvark]

Where do you get the meths in 5l jugs?
I've not been able to get it locally in anything bigger than 2l bottles (at a tenner a go )

The Local winnos.




No. A old style Hardware and home store in my town.

 

[Cobbler]

TYA,I have got the 3/8 drive AF version of that Gedore socket set, mostly complete, bought in 1965 for my first job on leaving school. Pretty bulletproof, I’ve never managed to break it!

EDIT …… no you can’t have it ……

 

[Melvyn Best]

Do you not have a welder?

Yes , as well as a set of hose clip tools!

 

[The_Yellow_Ardvark]

TYA,I have got the 3/8 drive AF version of that Gedore socket set, mostly complete, bought in 1965 for my first job on leaving school. Pretty bulletproof, I’ve never managed to break it!

EDIT …… no you can’t have it ……

Oh, did I ask for it?

No But Mrs @Cobbler said I could have it.

 

[Cobbler]

Oh, did I ask for it?

No But Mrs @Cobbler said I could have it.

Have you been chatting my wife up again? You bad boy!

 

[The_Yellow_Ardvark]

Have you been chatting my wife up again? You bad boy!

I refuse to answer that onj the grounds it may incriminate me.

Oh she does make a good cup of coffee and bacon butties.

 

[Onoff]

Inner peace.

For a brief couple of hours anyway, away from playing Dad's taxi or feigning interest at SWMBO's day. Tonight I found Westerham Brewery Audit Ale. At 6.2% I struggled to walk home. Too bloody quaffable at that strength!

Audit Ale - Beers | Westerham Brewery

Audit Ale - Beers | Westerham Brewery. Established in 2004 the Westerham Brewery Company is proud to bring brewing back to the historic town of Westerham.

westerhambrewery.co.uk

 

[slim_boy_fat]

...or feigning interest at SWMBO's day.

 

[Matchless]

Witham bike jumble, church hall job, found this lot for £60.00, no idea of value but means I can ditch those Chineeeeeese rubbish tools,