Stuff you have made today

[Hood]

 

[Barking Mat]

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Thank you, I love learning.

 

[Barking Mat]

As opposed to killing drill bits...

 

[Hood]

Also remember when drilling or milling stainless you need to let the cutter work hard. Letting it rub will work harden the stainless and make it very hard to drill/cut with a normal HSS/HSSE drill. So relatively slow speed and plenty pressure to make the drill cut or if milling then fast(ish) feed.

 

[brightspark]

Also remember when drilling or milling stainless you need to let the cutter work hard. Letting it rub will work harden the stainless and make it very hard to drill/cut with a normal HSS/HSSE drill. So relatively slow speed and plenty pressure to make the drill cut or if milling then fast(ish) feed.

and use cutting compound otherwise the drills wont last 5 minutes using compound you can drill loads of holes before resharpening them

 

[Barking Mat]

Also remember when drilling or milling stainless you need to let the cutter work hard. Letting it rub will work harden the stainless and make it very hard to drill/cut with a normal HSS/HSSE drill. So relatively slow speed and plenty pressure to make the drill cut or if milling then fast(ish) feed.

Good information.

Thanks.

Where does one learn this stuff?

Work alot with A4 stainless 316L I think. Marine grade, like you. Wish I'd learnt this year's ago.

 

[Barking Mat]

and use cutting compound otherwise the drills wont last 5 minutes using compound you can drill loads of holes before resharpening them

Cutting compound ? Not oil, please explain.

God, I'm 45, and know nothing.......

 

[Hood]

Good information.

Thanks.

Where does one learn this stuff?

Work alot with A4 stainless 316L I think. Marine grade, like you. Wish I'd learnt this year's ago.

Personally I learned from trial and error, lots of the latter

 

[Hood]

and use cutting compound otherwise the drills wont last 5 minutes using compound you can drill loads of holes before resharpening them

It can help but if I am honest I very rarely use it when drilling stainless. mill and lathe I usually have flood coolant.

 

[pondy]

Crap picture but started making a basic guard for the ad blue tanks on our fleet of vauxhall movano's. Pump is mounted on the bottom of tank and being low down it prone to getting damaged when going off road on site,£700 for tank and pump

 

[Barking Mat]

Sorry to divert this thread into how to drill holes, but obviously I'm on a steep learning curve this evening, thanks everyone, bear with me....

 

[Wallace]

Phase two of fitting the Sinpo DRO bought back in the lockdown to my POS milling machine, first fit up and trial of the X axis. This has spurred me on to get the other two axis done.

 

[Barking Mat]

Phase two of fitting the Sinpo DRO bought back in the lockdown to my POS milling machine, first fit up and trial of the X axis. This has spurred me on to get the other two axis done.

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I like the DRO, and the glass of wine, and the mill, hell, I like it all !

 

[Barking Mat]

Hi,

I've just made a woodturning lathe center steady whilst it's poured with rain and been perishing outside; what a change to spend a few quality hours in the workshop hiding from the world's problems.

Kind regards, Colin.

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Any excuse to do a bit of welding. I'm out of practice.

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It's been wonderful playing with my toys.

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The completed steady; skateboard wheels used. Long clamping handle and clamp make a decent mounting.

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A bit of arc welding using my Pickhill Bantam; Not the best of welds but it's ages since I did any welding.

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A neat out of the way clamp.

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This should making turning things like goblets easier whilst hollowing; it's a perfect sliding fit between ways ensuring accurate alignment. Just a nice project with something useful at the end costing very little in monetary terms.

Nice steady idea, I hadn't thought of that line of attack, I like ++

 

[Fraserb]

Tonights installment

 

[Barking Mat]

Tonights installment
View attachment 264600 View attachment 264601 View attachment 264602 View attachment 264603 View attachment 264604

Looks suitably articulated.

 

[Stueeee]

How does that work out of interest?

Changes the hertz or voltage?

Curious... Thanks again Stuart.

PWM -Pulse Width Modulation- speed controllers work on AC circuits by outputting the same frequency as the input to control the speed of a brush style motor; effectively, the positive and negative output AC wave is made fatter (more power) or thinner (less power) whilst maintaining pretty much the same voltage at output as whatever is input. The degree of AC clipping is being controlled in the chip by the potentiometer. These controllers are efficient compared to non electronic speed control. The hard work is being done by the chip with the big heat sink on that little PCB in mine. PWM controllers won't work for conventional induction AC motors where the motor's speed is controlled purely by the AC frequency.

 

[Fraserb]

Looks suitably articulated.

I'll get the actuators powered up tomorrow but looks like the boom fold one is about spot on for movement and the lift one looks OK as well, can tweak the bra kets to suit if needed

 

[PEZZER]

Sorry to divert this thread into how to drill holes, but obviously I'm on a steep learning curve this evening, thanks everyone, bear with me....

You and me both!

 

[Wallace]

What a great chill out day getting to love my workshop again. The Mk1 eyeball still works, I measured centre of X axis by eye with a 6" rule and it's 0.3mm off centre of travel which doesn't matter a toss and I could adjust the scale but the table doesn't do the advertised 550mm of travel, 2.3mm short! The culprit is the Gib strip.......