What Did You Do Today (2017)

[MuzzerParticipant @muzzer]

HasBean – looks good enough for the likes of me! I have to say, fitting a DRO to my milling machine absolutely transformed it in terms of both accuracy and speed of working. You can now place holes and features within a tiny fraction of hitherto, with a certainty that means you don't have to measure 5 times, cross your fingers and cut twice.

If you use an edge finder (type C), a DRO makes feature location quick and easy. Mine is 4mm diameter, so I just zero the scale and subtract 2mm from the reading to set the scale zero on an edge. Similarly, finding the centre of a hole or body using the "1/2" function is a real time saver. Have to admit I rarely never use the bolt centre or curve cutting features.

I was going to say "next get a power feed" but it looks as if you may have one already.

Murray

[OuBallieParticipant @ouballie]

I didn't waste the 2.1/2 months waiting for my foot to heal, but 'educated' myself on steppers and how to control them.

Geoff – Still unsure about centre taps though.

[HacksawParticipant @hacksaw]

Bought a new inkjet printer last week .Wasted 20 minutes doing the usual reclamation of goodies from the old one .. 10 self tappers , 2 motors, some thin cable , a few springs .. nice piece of glass…but the decent 12" shaft of steel I really wanted most … is now just lightweight tube

[Neil WyattModerator @neilwyatt]

Posted by OuBallie on 14/10/2017 13:30:11:

I didn't waste the 2.1/2 months waiting for my foot to heal, but 'educated' myself on steppers and how to control them.

Geoff – Still unsure about centre taps though.

Many steppers let you get at the join and get rid of it to convert a unipolar one with five connections into a bipolar one (much easier to control because of all the four-wire modules about).

If you have a six-wire stepper just ignore the centre taps.

Neil

[SillyOldDufferModerator @sillyoldduffer]

For forty years I reigned supreme and unchallenged as family Computer Expert. I dominated successfully through threat, intimidation, bluffing, and outright aggression. I was the alpha male, adept at keeping greybeards and beardless boys firmly under foot.

Alas today I was finally crushed by the young pretender. My advice on the correct configuration of an Android Tablet was dismissed out of hand as being 'so last century'.

I shall not speak of it again. I am ousted. The King is dead, long live the King…

Dave

[John GardenerParticipant @johngardener91897]

Android?

[Nicholas FarrParticipant @nicholasfarr14254]

Hi, today, (Saturday) I made a second screw for my son-in- law's shot gun. These are for latching the barrel to the main part on the gun. One came loose and fell out without him knowing. Spares are not available apparently, but he did get a quote for new ones to be made, but at £300.00 plus each, he told them he would scrap the gun first. So I was asked if I could make him a couple. I said I'd give it a try and what a try is was. total length is 8.7mm, biggest diameter is just shy of 12mm by 2mm thick, small end is 8.5mm x 3mm long and the threaded portion is 9.8 x 0.75mm pitch. A bit of a ticklish job by all accounts. I must admit that I messed up on the first attempt on the first one I made and also the first attempt on this second one. The original ones were also slightly domed on the outside, but flat ones are acceptable, they also have a 4mm hex socket on the inside for fitting them, these one's have part of a 2BA hex grub screw Loctite'd on the inside for fitting. The 2BA screws were first used to hold them onto a piece of the bar while facing the outside.

Above photos showing how the screws were attached to a internal threaded bar, for facing the outside. The new ones are made out of EN8, which is OK apparently.

Regards Nick.

Edited By Nicholas Farr on 15/10/2017 01:08:30

[HasBeanParticipant @hasbean]

Hi Murray,

I used it in anger yesterday afternoon (checking everything as I went just in case) and now wonder why I didn't fit one before! There are some functions that will probably see little/no use but things like the 1/2 function are a godsend.

I have a couple of edge finders like you describe and now I don't have to worry about adding or subtracting that extra 2mm off the 2.5mm pitch leadscrew!

Paul

[David Standing 1Participant @davidstanding1]

Posted by Nicholas Farr on 15/10/2017 00:59:22:

Hi, today, (Saturday) I made a second screw for my son-in- law's shot gun. These are for latching the barrel to the main part on the gun. One came loose and fell out without him knowing. Spares are not available apparently, but he did get a quote for new ones to be made, but at £300.00 plus each, he told them he would scrap the gun first. So I was asked if I could make him a couple. I said I'd give it a try and what a try is was. total length is 8.7mm, biggest diameter is just shy of 12mm by 2mm thick, small end is 8.5mm x 3mm long and the threaded portion is 9.8 x 0.75mm pitch. A bit of a ticklish job by all accounts. I must admit that I messed up on the first attempt on the first one I made and also the first attempt on this second one. The original ones were also slightly domed on the outside, but flat ones are acceptable, they also have a 4mm hex socket on the inside for fitting them, these one's have part of a 2BA hex grub screw Loctite'd on the inside for fitting. The 2BA screws were first used to hold them onto a piece of the bar while facing the outside.

Above photos showing how the screws were attached to a internal threaded bar, for facing the outside. The new ones are made out of EN8, which is OK apparently.

Regards Nick.

Edited By Nicholas Farr on 15/10/2017 01:08:30

 

 

 

 

Nick

So presumably these are the stub pins by which the barrel lump swivels on, and attaches to, the receiver?

Out of curiosity, what make of gun is it, since these only widely came into use in recent years on over and under shotguns such as Beretta (for which spare stub pins are readily available).

I'm guessing a defunct Spanish or Italian gun.

I hope whoever said EN8 is OK is correct, since the stub pins stop the barrels blowing off the receiver, under repeated firing pressures of up to around 11,000 psi every time a cartridge is fired.

 

 

Edited By David Standing 1 on 15/10/2017 23:00:05

[Nicholas FarrParticipant @nicholasfarr14254]

Hi David, yes they are the stub pins, can't remember the make, but made in Turkey. The pins are shouldered by the main gun body, opposite the barrel swivels.

Regards Nick.

[David Standing 1Participant @davidstanding1]

Hi Nick

Ah, if Turkish, probably Huglu, Yildiz or Armsan/Hatsan then.

I'm surprised he was told spares are not available, as these are all shotguns only recently imported to the UK, and all still currently have a UK importer.

[David Standing 1Participant @davidstanding1]

And I am afraid I am going to have to be a real party pooper on the stub pins.

Since they are copy parts not supplied by the manufacturer, and they are pressure bearing parts, I have a suspicion that the replacement stub pins will render the gun out of proof, under the Gun Barrel Proof Acts 1868, 1950a, and 1978.

I have seen the results of guns that let go under firing, and the results are not pretty, often resulting in the loss of fingers or eyesight.

I am not trying to be a smart Alec, but I would strongly recommend that your son in law only obtains parts from the original manufacturer, or only has shotgun pressure bearing parts manufactured by a reputable gunsmith.

I have three shotguns with similar stub pins, and the facilities to make copies should I ever need them, but I would not do it.

[MikeParticipant @mike89748]

Like David, I believe the gun will have been rendered out of proof. This does not mean it cannot be used by its owner, but it would be illegal to attempt to sell it. I am also surprised that factory spares are not available.

[RobinParticipant @robin]

OTOH I had someone telling me that the brass barrel on my blunderbuss would have age hardened after 230 years, be all crystalline and just about to explode killing everyone within a 50 yard radius and yet, I am still here

[David Standing 1Participant @davidstanding1]

Posted by Robin on 16/10/2017 10:42:37:

OTOH I had someone telling me that the brass barrel on my blunderbuss would have age hardened after 230 years, be all crystalline and just about to explode killing everyone within a 50 yard radius and yet, I am still here

Robin

I am pleased you are still here, nevertheless it is a fact that Facebook and YouTube are littered with videos of people injured by firearms that have let go, that aren't so lucky as you.

[OuBallieParticipant @ouballie]

Neil,

As you can see, I did find the centre taps after following a couple of videos on YouTube, and no difference in operation whether they are joined or not.

Haven't applied power to them either – yet.

Do they provide micro-steps using the right controller/software?

Just chuffed I actually got my head around how to get it to spin.

https://youtu.be/vYQla5Z5sVE

 

 

Geoff – I'm hoping this will sort out that lilttle 'problem' I have on the BH600G

 

Edit:

For some reason Embedding isn't working, there is just a red 'IFRAME' in the centre of the frame.

 

Edited By OuBallie on 16/10/2017 12:01:21

[MikeParticipant @mike89748]

Last time I was in the Birmingham Proof House I saw some frightening examples of blown-up guns. Made me think about what I do in my workshop.

[Neil WyattModerator @neilwyatt]

[RobinParticipant @robin]

[video src="http://www.robinhewitt.net/proof.mp4" /]

[SillyOldDufferModerator @sillyoldduffer]

Been an unearthly yellow all day here. It's the end of the world.

Not often you can take snapshots of the sun with an ordinary camera. No filters or processing.

Ophelia is coming…

Dave

[MuzzerParticipant @muzzer]

Apparently it's due to dust from the Sahara. A bit odd that, given that Ophelia is coming at us from across the Atlantic. Of course, the winds are at different directions at different altitudes.

Murray

[Bob RodgersonParticipant @bobrodgerson97362]

It's actually swept up from the Atlantic just by the Azores which are more or less south of us. The wind is circulating in an anti clockwise direction around the depression thus sweeping across large areas of the western Sahara and picking up dust from there.

[Steve PaveyParticipant @stevepavey65865]

And lots of fires in Portugal putting soot and ash into the atmosphere. Several flights at Manchester have been delayed following pilots reporting a burning smell, actually attributed to these Portugal fires.

The street lights came on here a while ago, 1400h, but it has since brightened a little to a yellow gloom. Never seen weather phenomena like this before.

[Steve PaveyParticipant @stevepavey65865]

Now getting the sun showing occasionally through the cloud, and a much stronger burning smell. Still an eerie gloom but nowhere near as dark as it was an hour ago – I just had a walk around the village and it appears that all the dinosaurs have died out.

 

Edited By Steve Pavey on 16/10/2017 15:20:50

[martin perman 1Participant @martinperman1]

Its positively yellow here in Bedfordshire my wife has just asked if the worlds ending

 

Martin P

Edited By martin perman on 16/10/2017 15:27:08

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