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

[RUNAMUCK]

A twist knotted wire brush cup wheel eats bog. But so does the bloke holding the grinder.

[tortron]

brush cup isnt as good as the strip disc. trust me i ran the numbers

[RUNAMUCK]

I ground out bog 40mm thick with one once. Chewed through it like a 7.5hp loncin mower over dry grass.

[tortron]

Yea I stripped my entire ute tray to bare metal. The cup brush was fine, but not as good as the strip discs. The strip disc also gives a nicer metal finish than the cup brush. I tried chemical as well which was useless for anything that wasn't a single layer of paint (three respray and bog) was messy, smelly, and slow going, still needed mechanical finishing to get the little bits off. 

 

Cup brush was good for underseal, did a decent job at the paint and bog but the strip discs won out to the point where I went and got more instead of finishing with the cup brush that I already had (I have a few makita ones in different sizes) 

 

That's my experience over a hundred odd hours of using allsorts on my ute. It's got plenty to test

[kws]

Ive spent a little time today chipping away at it with a wood chisel, which is working. Still going to need to use the stripping disk to tidy it up, but chipping out the big chunks helps. Im a huge fan of strip disks though, they're super effective. 

[tortron]

I'd like to try an air hammer dialed in to not damage the panel

[cletus]

Use a cup brush, any bog that doesnt come off must be stuck well enough to stay, more bog over the top, done. 

 

 

 

 

 

 

 

I'll show myself out  

[tortron]

For real tho, I've had stuff that wouldn't chisel off. That's space age repair right there

[governorsam]

https://www.google.com/search?client=firefox-b-d&q=needle+scaler

[kws]

The over all winner (other than a stripping disc)? A heat gun and sharp wood chisel. Heat the bog/panel up hot, and the bog just peels off easy. A stripping disc will clean the panel up afterwards, but its pretty clean as it is. The chisel works best when held as close to parallel with the panel as possible.

[tortron]

also done that on my minor was hit and miss with the different varieties of bog. Very cool finding 4 different colours and lead

[datlow]

Vapour blasting was legit for my tank

bit harder to chuck a complete car in a cabinet tho

/ there’s a localish mobile guy advertising pretty sure I asked him how much for my car and he never got back to me 

[tortron]

that goes back to the best way being get someone else to do it

 

 

You still have the mess on your driveway if they come do it tho

[datlow]

Yeah keen on taking all the panels off and dropping of to them 

[SOHC]

What NGK plug would cross reference with a Champion D16? 

I lost my sparkplug book 

[kyteler]

25 minutes ago, SOHC said:

What NGK plug would cross reference with a Champion D16? 

I lost my sparkplug book 

AB-6 

[h4nd]

Internet door opener.

Comedy gold:

 

[tortron]

Keep the original wall switch. wire up a central locking actuator so it pushes the switch via some kind of rube goldberg machine

[Testament]

Golf ball inlet port?
Yeah I dunno, anyone seen/heard of this? I'm thinking that's quite different a golf ball spins/rotates and does a higher speed for a while at least. Cool points for aesthetics though.

 

 

[locost_bryan]

44 minutes ago, Testament said:

Golf ball inlet port?
Yeah I dunno, anyone seen/heard of this? I'm thinking that's quite different a golf ball spins/rotates and does a higher speed for a while at least. Cool points for aesthetics though.

Race car paint has "orange peel" finish for the same reason, supposed to improve flow by disturbing the layer of air that "clings" to the surface.

Some discussion here

http://speed.academy/10-myths-of-cylinder-head-porting/

https://forums.mightycarmods.com/forum/technical/tech-talk/798217-porting-clearing-the-elephant-in-the-room-about-rough-vs-smooth-vs-dimples