Member postings for Robin

Arrived today. Stupid really but I couldn't resist...

A poor job trying to unblock a 0.4mm nozzle and it was became an ex-0.4mm nozzle

The new ones are $30 but only £1.50 from the Bay of Fleas/Guangdong province. So I order 4 pcs and some weeks later here they are.

Unfortunately they are threaded M6x1 where the genuine parts are threaded M6x0.75 I tried whinging but all I got was an instant refund and told to keep them ad gratis.

The temptation is to rethread them with the M6x0.75 plug tap I just purchased. Alternatively I could tool up and make a pile of them.

Think I'll see how the rethreading goes first

But, apart from that, what about the new shopping opportunity proposed by Howardt. I never knew 3 flute drills existed. A quick browse later and they are not impossibly expensive. Such fun, are they really self centering?

**LINK**

Now bookmarked and all I need is something that requires a lot of holes...

I think this is all pie in the sky because we don't know what he is drilling in to, or did I miss something? Are we assuming quality bits just because he has bought a big power feed mill? In the words of Isaac Asimov, "Insufficient data for meaningful answer".

It's a trap isn't it. You know perfectly well that G83 will peck and you are just waiting for a Newbie to say you are wrong so you can strike. Go on then, I'll bite...

"You're wrong"

My Roland CAMM-3 CNC's just fine with it's 4MHz Z80.

The company I worked for were first to offer a 10MB drive for under a thousand pounds. The disks were fine it was the interface card trying to run on that IBM edge triggered interrupt. Remember that IBM edge triggered interrupt?

Blimey Emgee, they had the pulleys at £5.29 and I just paid £5.49, way to give me palpitations

However I got aluminium instead of iron, 8mm bore and free shipping so I did okay even if they are on a slow boat.

Always a sucker for a bargain, I bought their two years for the price of one offer and that is working.

I was thinking Ali Express for the belt because there is no hurry and I can get 20 meters for £60. I am sure it is safe as houses but I may just use the jolly old Pockit card to be sure

I will get HTD5. 15mm polyurethane with a steel reinforcement because we can!

Things have obviously moved on since I started building this thing. There is now a picture to show why nobody should ever use T5 in a positioning system. Wish I'd seen that. So, which pulley is optimum for positioning? Is there a good choice or is it just anything but T5?

This feels a bit like consulting the Oracle at Delphi. I have faith but are you lot really all-knowing?

I was making a plasma cutter. I had lots of sneaky ideas to try out that was going to make it the bestest plasma cutter in the world. But then I fitted my first T5 belt on a T5 pulley and everything came to a grinding halt.

There is about a millimeter of slop on it

All making stopped. The only good belting available that fitted the bill was steel reinforced T5x16 and it didn't cut the mustard. Everybody else using it doesn't care about plus minus a millimeter or is there a secret pulley supplier you are all privy to but I don't know about?

What gives?

I am so out of date with this model stuff. Just out of curiosity I typed "involute gear cutter" into eBay to see if prices had come down since the 1980's and then quickly added that magic word "set" to the search box. Now I've gone all trembley. So much to do, so little time

Theoretically there may be metallic hydrogen towards the centre of Jupiter, but nobody has suggested mining it

Climate change is al wrong. It doesn't bother me that it's wrong, if they don't tax me one way they will tax me another.

However, when you are in the middle of an ice age you should pray that your interglacial lasts, if the place warms up a bit then it should be party time.

So long as they don't actually do anything that might cool the place down I don't really care what they get up to.

Do we really want to build fission reactors, even liquid thorium salt fission reactors when fusion may be just around the corner.

Or is fusion just another impossibility trying to attract funding?

Is Kim just about to send us some free plutonium?

So many questions.

If they pay me a subsidy then they can store low level nuclear waste under my bed

Think of all that lovely cheap neodynium we could get to play with

Edited By Robin on 11/09/2017 09:50:08

Nuclear is ridiculously expensive, especially when you remember the newspaper headlines from when Calder Hall fired up, electricity was going to be so cheap they wouldn't even bother to charge for it.

You have to wonder how expensive electricity has to become before it is a cheaper option to convert a small generator from petrol to gas. For 1 kWh I pay 11.7p in electricity or 2.65p in gas.

25% efficiency and I am in profit plus I could harvest the excess heat in Winter.

Edited By Robin on 11/09/2017 09:39:10