Search Results for 'zan'

[Robert Atkinson 2Participant @robertatkinson2]

Zan,

That sounds more like incorrect VFD settngs than too small a motor. Or you are overloading the lathe. Myford recommended 1/2 HP (4 pole) for a 3 phase motor so you are already at 50% oversize.
Running on the smallest pully is not ideal unless you are doing high speed work You should pick the belt position that keeps the motor near rated speed for the work you are doing. Running the motor well below rated speed is not the best set-up.

Robert.

[Andre ROUSSEAUParticipant @andrerousseau66124]

Pitching this post to any owners of the Russian RYAZAN 1M63 Lathe, which is a Soviet-era copy of an older German lathe. What sets the 1M63 apart is the fascinating taper-turning facility which you'll find on no other lathe. Although a comparative walk-in-the-park for modern CNC machinery for a manual lathe the 1M63 uses the little-known combined feeds technique for machining tapers.

Go searching for this on YouTube for instance and you'll drown in videos on all the orthodox methods and everything in between but astonishingly, nothing on the combined feed arrangement as used on the 1M63.

My request is, for any 1M63 owner out there could they please do a descriptive video explaining the features of the driven compound slide followed by the facility in action. Post the link to the video here. I am confident it will be well watched. Also, could they also post all the relevant pages from the lathe owners manual especially any exploded view diagrams showing the internal mechanism.

Novel and almost unique Taper-turning facility.

[Anonymous]

Posted by Michael Gilligan on 27/11/2022 12:53:04:

My working hypothesis is that the ‘lone genius’ Inventor of the mechanism was on his way to the Ancient Greek Patent Office … when the ship sank.

My theory is that a gang of guys at an ancient Greek Model Engineers club got together in their newsletter to design "… this really zany mechanism and drop it in the sea so that when someone fishes it up in 2000 years ….."

[Salty SpudsParticipant @saltyspuds]

Posted by Zan on 08/11/2022 10:54:16:

Here’s another from my daughter involving text message from strange number

hi mum Iv lost my phone and I’m stuck without funds please will you send me ……xyzzys……….. Iv had to borrow a phone to send you this………

my granddaughter is 4 and needless to say she can’t text or could loose her non existent phone

We had the reverse situation of this a few years ago. We were on holiday abroad & the apartment was burgled, ipad/phones etc taken. I sent my daughter a text message from the people next door's phone, asking her to block our phones. She replied to the text saying she didn't recognise the number & asked the sender to prove who they were i.e. me. I sent her another text with the name of her boyfriend & my DOB. Since then, we have a family password to identify each other in case a similar situation arises in the future. very simple but effective.

[RobinParticipant @robin]

I have already painted myself into a corner.

Luckily I spotted a liana hanging from a light fitting. This allowed me to swing up, Tarzan style, to get this aerial picture…

[Peter Cuthbert 1Participant @petercuthbert1]

Hi Model Engineering Friends

I thought it was time to provide a brief update on this project. Much has come in the way of it including Solar PV with battery, much fighting with our electricity retailer, much work on the improvement of the rear garden, particularly in relation to Builder Shame dating from since the time the house was built rigt up to thelast time we had builders on site, adding the mezzanine floor to the garage, and trying to find door and window suppliers capable of installing kit that is pushing the latest building regs. On the hobby side I have worked with long time steam canoe and mono-tube boiler enthusiast John Emmett on a couple of articles on mono-tubes for the SBA's Funnel magazine. With those done it seemed a good idea to create a website to bring together all kinds of mono-tube steam generator information/views from anybody who is willing to contribute. Having used Concrete CMS before I volunteered to do the basic set up work, but found I had got the latest version (v9) which is quite different to the version with which I was familiar. Steep learning curve time. Anyway the framework and some material is there now and contributions will be welcome: https://www.mono-tube.org.uk

Having worked with John I am now of a mind to copy his mono-tube steam plant in Snipe but using the existing Cygnet. As work on that starts I will keep you posted. A picture below:

Best wishes

Pete

[Nigel Graham 2Participant @nigelgraham2]

ZAN –

Camp-sites.

My first full weekend at the show was pricey as the only site I could find was a fairly posh one near Starfford-on-Avon. However, I have found another, and used it for about 3 years running (BC!) ]

It is only a few miles from the Show Ground, too: Churchlands Farm, on the fringe of the village of Harbury.

Basic, low-cost, no frills – the loos and showers are or were when I last there, in converted shipping containers; and the entrance is slightly disconcertingly through a small industrial estate. Not too far to walk to the pub, either, which I hope has survived The Pestilence.

A lot of the other campers, the owner told me, are HS2 builders staying in caravans for the week, going home at weekends. (The route passes near to the village.)

Try them: 07904 496940

[HowiParticipant @howi]

to anyone thinking of getting a hand grinder, don't! unless you have muscles like Tarzan.

It takes so long to get a fine grind, I have run out of desire for a coffee and want something stronger!!!!

They are a real pain in the a**e to use and need constant adjustment.

Go elextric unless you are a glutton for punishment.

The oither cheaper alternative of course is to buy the coffee already ground……..

[SillyOldDufferModerator @sillyoldduffer]

My limit is about 500kg, but I suppose it depends on what the bottleneck is. Could be money, power, space, or access. In my case, it's space, unless I spend big money and move house. As it is, I have to fit my whole workshop plus other bits and pieces into a bit less than the size of a single-garage. (Tiny British garage, not one of those lovely giant American things!) There's not quite enough headroom for a Bridgeport. Quite a few advantages – easy to keep warm, and I didn't have to upgrade the power apart from the lighting because the machines are all modest. But it's at least 50% smaller than I'd like.

More a private museum than a workshop, but the largest I've seen belonged to the retired owner of a building company. He collected big ex-industrial lathes, at least 20 of them. I remember looking at a DSG with a chuck big enough to spin a Myford Super 7 and wondering how on earth the chuck was changed without a crane, which he didn't seem to have! The building covered an area about the size of two tennis courts and was purpose built with interlocking concrete piles, with a mezzanine floor, a large industrial door, and corridor space for a big fork-lift. Power from a substation under a pylon, which I guess fed the rest of the site, which seemed to be making large pre-cast concrete panels, pillars and other hefty stuff. Secure fenced site, with access and turning for the biggest trailer lorries.

Although the building was industrial, I guess it would cost a couple of million to buy new. In fact, much cheaper because the piling was surplus, he owned the land and the equipment needed to erect it, and could divert employees to work on it whenever business was slack. Most of the lathes were picked up gratis from his trade contacts. Although they all had power, as far as I could see only one machine was actually being used.

At the time I owned a mini-lathe…

Dave

Edited By SillyOldDuffer on 16/09/2022 19:53:14

[ZanParticipant @zan]

Doc, regarding tool bit grinding, you may like to see my post and phots of my simple grinder rest in this thread

lathe  carbide tool issue

sorry, can’t find out how to post a link to it 

please contact me if you want more details

 

Edited By Zan on 12/09/2022 13:38:44

[ZanParticipant @zan]

The critical dimension is the platform top should be 10 mm below the wheel centre the slider with the adjustable angle is 6 thick, and the tool holder is 8 mm thick . Note the tool is located by a 6 mm square riveted to the base , and is sized so the tool is able to be located on the front or side Springs push the top plate up to release it when the wing nuts are loosened.

I also have holders for small round shanked preformed boring bars and other round tool bits

Jason, yes I agree about some can work well with carbide with this lathe, but I was echoing earlier posts about the lack of power, its lack of rigidity and the op had success with HSS

 

Edited By Zan on 12/09/2022 13:30:32

[ZanParticipant @zan]

200 mile trip twice fir me with trailer as I’m exhibiting I was going to stay and steward but they won’t let my camper stay on site and other sites are too expensive. Shame, but still looking forward to it

 

edit.  I will be bringing my bigger drills. Thanks for that!

Edited By Zan on 10/09/2022 13:51:31

[SillyOldDufferModerator @sillyoldduffer]

Posted by Zan on 10/09/2022 09:10:49:

Agreed, my apologies I missed that photo but why then did doc say

“Got the metric step diameters spot-on (at least to the 0.01mm accuracy of the calipers)” when there’s a micrometer I wouldn’t trust my mitutoyo calliper for measuring here but would use my digital Mitutoyo……. Still impressed though!

One of my hobby-horses is the difficulty of getting high-accuracy measurements right. No criticism of Doc's work, which is much better than mine, but I fear he's stumbled into error by claiming an accuracy greater than that of his instrument! Although the resolution of his caliper is 0.01mm, implying an accuracy of ±0.005mm, Mitutoyo's stated accuracy is only ±0.02mm.

I don't think the inaccuracy matters for what Doc is doing, but it might if several Docs were working separately to build a Princess Royal, each being responsible for various different parts to be brought together and assembled later. It doesn't matter because although Doc's slip gauge stacks aren't accurate in absolute terms, they ensure a high-level of repeatability in Doc's workshop, and I'm sure his finished engine will be wonderful.

Historical diversion: I think the Princess Royal engine must be named after Queen Victoria's eldest:

Her son is more famous!

Pictures: Thomas Heinrich Voigt, Public domain, via Wikimedia Commons

Dave

[Clive Brown 1Participant @clivebrown1]

Posted by Zan on 29/08/2022 13:52:20: Could be missing the motor Mount. Ot it’s top left. Different from the ones I kno

It seems a very early machine where the belt is tensioned differently from later bench models. The adjuster is positioned in front of, and below, the headstock. There's a hole visible in the LH foot for it to pass through to the rear of the lathe.

[HowiParticipant @howi]

Posted by Zan on 06/08/2022 22:26:28:

I am a bit confused here. What’s the advantage? I touch my DRO consoles to change any setting by pressing the buttons. Why is touching a screen better? Will greasy fingers or gloved hands still work it?

Then there’s a tablet to ensure it’s charged, and will probably need turning on rather than automatically comming on with the machine

seems to be a lot of effort for not a great return. Please explain

it's cheaper, repurposes old items you may have lying around, works with cheap scales and does what it was intended to do.

if you are lucky/rich enough to already have or can afford a commercial setup, lucky you.

Others may not be so fortunate, or prefer to use a diy solution and derive great pleasure from building it themselves.

after all, isn't that what we do?

it's not always about how deep ones pockets are.

Quote "there are non so blind as those that do not want to see"

[vic neweyParticipant @vicnewey60017]

Posted by Michael Gilligan on 24/06/2022 20:57:45:

Is this any help, vic ?

**LINK**

https://www.furniturenmarkt.de/Spannzangen-BOLEY

… aside from making you feel fortunate.

———————————————–

Thanks for all replies

MichaelG.

I think that is definitely of help as it gives it as a 13 X 1mm thread. I also got included a smaller number of 15mm Crawford collets and although the thread is still 1mm they don't screw in properly in the drawbar without jamming after 2 turns so there must be a slight variation to the cut of the threads

Buying a tap and die is a bit risky as it's unlikely to fit both but it's the Boley ones I'm more interested in.

[Michael GilliganParticipant @michaelgilligan61133]

Is this any help, vic ?

**LINK**

https://www.furniturenmarkt.de/Spannzangen-BOLEY

… aside from making you feel fortunate.

MichaelG.

[Nigel Graham 2Participant @nigelgraham2]

I will castigate you neither for the choice of car nor the ingenious machine-bench!

Regarding 1/ and 2/…..

Include Zan's advice and add the thick worktop material the full length of the chest, so the lathe is on a much more rigid board and its weight is transferred from the flimsy top to the vertical sides and legs.

'

For the rest – yes, concrete piers under the shed floor. When I installed a Warco drill/mill and a small lathe (a Sphere I think from memory) in a wooden shed I used brick plinths cemented to a concrete slab I'd laid before erecting the shed. I also put rigid plastic plates on top of the bricks as damp-proofing and for some resilience. I did need use a modicum of steel packing above those, for level.

Steel fence-posts driven into the ground, if that is just earth, may corrode away in a few years. Timber will have a shorter life still. If you want a longer-term version you could sink pieces of large-diameter plastic drain-pipes vertically into the ground and fill them with concrete, with a suitably-placed piece of stainless-steel studding projecting from each to give anchor-points for the bench. You may be able to obtain off-cuts of pipe from a local builder.

[ZanParticipant @zan]

Hmmm no holding down bolts. FIT THEM!

Myford lathes with the motor hung on the back have the centre of balance only just inside the rear foot and it doesn’t take a lot of extra loading to tip them over.

yes. Fit a solid under floor under the wood of the shed, but be certain about the location. If you are getting a proper stand then it’s not worth strengthening the chest unless the lead time is more than a couple of months

as a temp measure fit and fix a scrap kitchen worktop under the lathe. That will give something fir the bolt anchor points The drawers prob have a thin flimsy top, but only you know that!

Edited By Zan on 05/06/2022 10:12:09

[John PurdyParticipant @johnpurdy78347]

Does anyone know if the castings and drawings are available from any place for Les Chenery's 3 cyl. Anzani aero engine?

John

[ZanParticipant @zan]

I believe the original had cylinder and chest cast as a single unit. So these are 5x6ba gunmetal r head fixings to hold the chest down.

there is a clear section in the centre of sheet 6

the view  of the chest bottom left on the sheet shows they clear the spindle. 6 holes”a” to fix to cylinder etc

 

 

 

edit. Typo

Edited By Zan on 15/05/2022 13:13:51

[Nick WheelerParticipant @nickwheeler]

Posted by Hopper on 24/04/2022 11:05:47:

Posted by Zan on 24/04/2022 10:57:02:

…

but why

does it take such a long video?

He's an old guy pottering around in his shed, not a videographer. Tis the nature of much of YouChoob.

He's a retired teacher, so explains what he's going to do and why, then demonstrates it and finishes with another explanation. Just like any competent trainer, and not the self indulgent Youtubers who don't know when to shut up

[HopperParticipant @hopper]

Posted by Zan on 24/04/2022 10:57:02:

…

but why

does it take such a long video?

He's an old guy pottering around in his shed, not a videographer. Tis the nature of much of YouChoob.