Tech Spam thread - because 1/4" BSP gets 5 hand spans to the jiggawatt

[Snorkpipe]

How big an area do you need? Truck brake pot diaphragms might do the job

[SOHC]

I found Pipeline in avondale has some

[kicker]

Hey, if I'm bolting a sprocket to a flange with M8 bolts, how much edge distance would would be a good idea minimum?
Flange is thicc as, 20mm+

[tortron]

23 minutes ago, kicker said:

Hey, if I'm bolting a sprocket to a flange with M8 bolts, how much edge distance would would be a good idea minimum?
Flange is thicc as, 20mm+

rule of thumb is 1.5 times the diameter of the bolt

[tortron]

if trhe sprocket is loaded up you might want to work out the posibility of the plate tearing

[kicker]

It's more of a boss than a flange I guess, would only have 8.75mm from edge of M8 hole but it will have up to 100nm of torque through it so maybe a spline or something is needed to transfer the force and the bolts can be to secure it.
Just trying to work out if a part I have found can be used before seeing a beard about it

[SOHC]

Finally found the proper 2ply 3.2mm synthetic shit, took a couple practice runs to get the cutter right but now they work.

[ajg193]

Does it really make sense mucking around using 80 year old gauges and regulators in a safety critical application?

 

What's a new or even somewhat recent set cost? A couple hundred bucks?

[tortron]

GEnuine smiths gauges tho

 

 

(that have had no oil in them for 50 years)

Rudi mixes it by sense of smell tho

[ajg193]

https://www.trademe.co.nz/a/marketplace/business-farming-industry/industrial/manufacturing-metalwork/welders/listing/2850145610?bof=aRYHuxcx

$75 delivered for a brand new acetylene regulator

Same price for oxygen, can get them used for even less

[SOHC]

14 minutes ago, ajg193 said:

Does it really make sense mucking around using 80 year old gauges and regulators in a safety critical application?

 

What's a new or even somewhat recent set cost? A couple hundred bucks?

If it lasted that long it must be good? Thees old regulators have relief valves in them and way better valve seats, can be stripped down to clean the build up of shit easy. I got a brand new set of BOC regulators 3 years ago and they have failed, before that I had another set that started leaking after a year. Some of the cheep ones have cardboard faces is the gauges and the flow is terrible as I do a lot of brazing almost every day,

 

when end I go to the shed I will get a pic of my regulator graveyard 

[Transom]

And those are fucking cool gauges 

[NickJ]

How did you cut them, looks really neat?

We do plenty of that kind of stuff with the waterjet cos its a pain most other ways

[SOHC]

7 minutes ago, NickJ said:

How did you cut them, looks really neat?

We do plenty of that kind of stuff with the waterjet cos its a pain most other ways

I have a circle cutter knife thing 

[SOHC]

[doullama]

Anyone know much about older commodore utes? Am looking at getting a series III (01') VS to replace my AU wagon (obviously it doesn't need replacing, just bored of unrelenting reliability and class-leading style + want a year long wof) . Its ecotec 3.8, I know the automatics don't last forever but any other pitfalls for new players? Rust spots to look out for etc? Chur

[tortron]

just freshen up the auto tbh, its easy as, even a womble like me can do it

[Nominal]

Any ideas on where to get one of these things in NZ

BNT had no clue

/noaliexpressbuttplugsuggestionsthanks

[tortron]

for what trans. summit racing and (iirc) rock auto has them

 

they are like $2usd

[Nominal]

26 minutes ago, tortron said:

for what trans. summit racing and (iirc) rock auto has them

 

they are like $2usd

C4

BNT didn't have Type-F fluid either. Disappoint

I wanted to fire up my 'running' flathead to show off to the Morrie Club this weekend, but don't need trans fluid all over.