Here is a list of all the postings Robin has made in our forums. Click on a thread name to jump to the thread.
|Thread: Bench grinder|
I did pop one out just to see if it was as easy as claimed.
I knew nothing about bench grinders so I typed, "Which bench grinder?" into Google and then bought a Metabo DS200.
|Thread: What Did You Do Today 2021|
I was changing a lot of optics. By some miracle I always seemed to guess correctly as to whether it was the photodiode or the LED that had failed.
Then I realised I wasn't changing the optic, I was changing the solder and always at the button cell end.
One leaky battery and the solder joint died. Still looked okay it just didn't conduct
|Thread: Best soldering iron for electronics|
I do a lot of soldering. Eventually, I got fed up with Chinese 852's. It's nice to have the hot air nozzle but the irons were very hit and miss on temperature and once a pad boils off the board it is nigh on impossible to put it back.
I eventually returned to the fold and got me the reasonably priced Weller WE1010 and have never looked back.
It features a timer so it is immune to being left on accidentally overnight.
|Thread: We thought the Aliens had landed …|
We have one of those up on Seaford head. It hums to itself and miraculously causes aircraft to turn 90 degrees as they pass overhead.
|Thread: working Damascus steel|
The blacksmith at Rodmell forge told me that when steel was in short supply due to WW2 the shepherds would bring him old shotgun barrels to be made into the Sussex leg crook. When he tried to reduce the diameter on Damascus barrels they came unwound. It was never actually welded.
Similarly, if you wind a Damascus barrel then rifle it, you are cutting across the grain of the Damascus and the rifling has no strength. A rifled Damascus barre starts with a tape wound core.
I have one of the original Liege Damascus shotgun barrel blanks Peter Dyson was selling off. It has a beautiful loopy pattern. Wonder if he has any left.
|Thread: Did I imagine that?|
My goodness, your gear pictures make me even more determined to cut involute teeth. What is wrong with me?
So many things to buy and my mill in pieces, whatever next?
I shall hope for 16DP then, sounds better than MOD1 already.
What material were you cutting to blunt HSS?
Do you think they might be high carbon steel dressed up as lamb?
Did I really just buy a set of M1 involute gear cutters for £34.49 on offer from Amazon with free shipping and delivery in 3 weeks? Perhaps I imagined it. I couldn't help myself. It was an involuntary burst of mouse clicking and all over before I knew what was happening.
I mean, what's the worst that can happen?
8Pcs Involute Gear Milling Cutter High Speed Steel Cutting Tools Set Machine Tool Accessories 14.5° Pressure Angle 55mm 22mm
|Thread: Metal Suppliers|
Another vote for Rapid Metals. Free delivery with DHL if you spend enough and they will sell you little bits without cost penalties. Watch out for their 4mm sheet though, it's bent.
|Thread: Chinese drip feed oilers|
Of course, Old Muggin's here has a bag full of them
They need a bit of work in the throttle if you want it to shut off.
The top spring thing that uncovers the fill hole and holds the drip adjust wherever you left it, is a steel stamping with sharp edges so nothing about it is easy.
The screw thread at the bottom was not something I had in my collection of taps and dies.
What about those digital oilers with the interval and duration timers? Somebody stop me
|Thread: Uncertainty of Measurement [Global Warming]|
Remember, this is attribution, so there doesn't have to be any warming to make the temperature rise.
All you need is a fall during the calibration period, in this case 1850-1900.
Attribution science graphs.
"Attribution science" meaning any climate variation that the maker of the graph could not explain must be due to carbon dioxide and human activity.
A novel approach to science that will probably last at least 20 seconds beyond the point where the funding runs out
|Thread: Milling arbor sans keyway?|
Tell me about it
I have a couple of ISO30 ER32 collet chucks that I bought before I realised Warco had it wrong.
I will probably give them to my son, he can flog them on that auction site and make a few quid.
There are some tasty, low overhang, INT30 ER32 chucks out there. I got one and am looking for another.
Edited By Robin on 03/07/2021 12:53:53
I love it. I feel a deep need to cut gears, probably just a blood clot but it still has to happen
Fascinating. You might think it would make more sense to omit the keyway from the saw rather than the arbor.
Could I be up against some weird H&S thing?
The Warco Ad confused me. ISO30 lacks the driving dogs, whatever they are called, so this is INT30 which has them. There is also BT30 for auto tool changers but it isn't that either.
I think I have to cut the keyway to keep it cushty, but if I can get away without then I am safe to buy a set of involute cutters and see how big the keyway needs to be.
I have a 6mm broach so I am hoping it's a 6
No it is INT30, I have a problem with my brain
I bought a new Warco HV mill and I love it to bits, lots of bits, it is all in pieces but slowly coming back together.
It came with two horizontal spindles, 22mm and 27mm.
The 27mm has a keyway while the 22mm has none.
Is that normal? I have no experience.
I notice that gear cutter bores seem to depend on the Modulus. At M2.75 they make the leap from 22 to 27mm bore. I wondered if perhaps the smaller sizes need less torque? Seems unlikely.
Perhaps you are expected to cut your own choice of keyway. This could be catch 22 if all the milling cutters that might cut the keyway are bored 22 because they are considered pathetically small out there in the real world
RDG tools have a 1" INT50 spindle that would fit and lots of DP size cutters to go on it. Unfortunately, they forget to say if it has a keyway and I have become suspicious. Also, does INT50 imply it wants a 40mm support bushing at t'other end?
Too many questions
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