What did you do today (2015)

[ChrisHParticipant @chrish]

Bob, tools dropped in the bilges, always a toss up between would it rust because of the sea water there or not because of the oil! Retrieve it quick was best idea, cadets very useful for that.

Scavenge space cleaning, what a dirty horrible job that was, but essential to reduce the fire risk. The engine room ratings always got a 'job and finish' on that one, and deservidly too.

Chris

[OuBallieParticipant @ouballie]

The oil hole in the Tom Senior Overarm bearing I recently made was way to big so soldered it up and drilled a No.70 hole. Too small so went to enlarge it and the solder plug promptly fell out and disappeared down that black hole every Workshop has.

OK I need to use 'proper' solder so got the spool of Fry's, cleaned the hole, heated and plugged it up.

Filed inside and out smooth and drilled No.65 but still no oil getting onto the Spindle spacers so opened it out No.60 and oil getting through.

Has anyone done any experiments to determine the hole size to feed oil to shafts?

Photos of the rubber sheeting covering the tables on the TS & Boxford;

Geoff – Mill keyways in vices tomorrow.

[MuzzerParticipant @muzzer]

Geoff – you've probably said already on more than one occasion but what is the material and source thereof? Looks like a handy hint to avoid unnecessary cleaning.

Murray

[LathejackParticipant @lathejack]

Today I decided to pay a visit to the Newark Classic Bike Show. It is the first time since I packed in motorcycling around 23 years ago that I have felt interested enough to bother going to a bike show of any sort.

The show seemed a bit lacking and was very disappointing, particularly if you were interested in sorting through lots of piles of spare parts for something you needed, or a complete old bike, although there were a few. But not even a single, solitary BSA C15 anywhere. But then it wasn't all that expensive to get in.

Maybe the poor weather we have been having is to blame. There were four Myford Super 7's on offer, and JB Cutting Tools were also there.

Edited By Lathejack on 03/01/2015 17:50:42

Edited By Lathejack on 03/01/2015 18:09:24

[frank brownParticipant @frankbrown22225]

OuBaillie, what you do is to "plug" the hole with a suitable permeable plug (cigarette filter tip!!). I learn't this dodge from a plumber when the gas pilot failed in a stove of mine, not enough gas coming through to actuate the safety system. So being a bright spark I poked something through the tiny hole only to have too much gas coming through and a pilot 4" long. My plumber friend told me the dodge and it worked perfectly. Oh yes and it has worked for at least a couple of decades.

Frank

[OuBallieParticipant @ouballie]

Murray,

EPDM sheet offered on eBay, various thicknesses and sizes.

For the mill and shaper I used some of the 3mm thick sheet I have.

I will try 1mm on the Marlow and see how that works, as the magnetic bases don't work through 3mm.

Frank,

I did think of using a wool thread but decided against.

Cigarette filter!

Amazing how people come up with solutions.

Doesn't the filter need a good reservoir/head in order to get oil to filter through?

Now where to find an unused ciggy filter? Ah next door smoke.

Geoff – Lazy day.

[NJHParticipant @njh]

Geoff

That might still be an expensive solution.

I've not smoked for over 40 yrs now but I was stunned recently when I saw the price of my once favourite brand. If I was still smoking at the rate I was then I would be spending more on cigarettes than we do now on a weeks groceries for two!

Norman

[OuBallieParticipant @ouballie]

Norman,

I gave up in 1989 and have never regretted it, and have absolutely no intention of starting again.

The price of a pack now is mind blowing.

Did an exercise, some years ago to see what I'd saved, and it stunned me as it paid for most of the equipment in the Workshop.

No wonder Food Banks are needed.

Geoff – Smuggling and cross Channel shopping are here to stay.

[Ian S CParticipant @iansc]

Went out to the work shop after lunch, looked at the thermometer outside, 33*C, then the one inside 39*C, gave up on the idea of any work in that. Fire is becoming a real danger, a honey processing plant down south was burnt out yesterday. On the fire danger map, I'm right in the middle of about the biggest red area.

Ian S C

[Gray62Participant @gray62]

OuBallie – a cheap source of filters is the ones used for hand rolling cigs, they come in 3 or four sizes, if you want some samples, PM me your address and I'l send you a few, I've got some left over since giving up.

Graeme

[Another JohnSParticipant @anotherjohns]

Spindle sensor feedback on my new CNC mill – so when you ask for (say) 500rpm, the LinuxCNC program figures out if the mill is set to high gear or low gear, and adjusts accordingly, so you do get 500rpm!

Fun stuff – and once again, LinuxCNC makes it all possible. Here's the blog link, for anyone interested: **LINK**

John.

[Neil WyattModerator @neilwyatt]

I discovered the importance of not allowing blood and fat to contaminate Morse tapers.

**LINK**

Nice to know that if I ever get an artificial hip my leg will be interchangeable with my other tooling.

Neil

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Ian S C on 04/01/2015 11:41:54:

Went out to the work shop after lunch, looked at the thermometer outside, 33*C, then the one inside 39*C, gave up on the idea of any work in that. Fire is becoming a real danger, a honey processing plant down south was burnt out yesterday. On the fire danger map, I'm right in the middle of about the biggest red area.

Ian S C

.

Ian,

Avoiding the temptation to discuss Hot Air Engines …

My very best wishes for your safety.

MichaelG.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Neil Wyatt on 04/01/2015 17:35:09:

I discovered the importance of not allowing blood and fat to contaminate Morse tapers.

**LINK**

.

Fascinating article, Neil

Design project ? … How to fit a Draw-Bar

MichaelG.

[John HaineParticipant @johnhaine32865]

Finally completed (for now) fitting a 3 phase motor and inverter to my VMB and wiring it all up. Seems to work nicely!

Two reasons to fit, one was the stupidly designed original speed change mechanism was driving me crazy. It had 3 pulleys, one 3-step on the motor, one 4-step idler, another 4-step on the spindle. The idler was mounted on a sliding bearing that you needed to loosen with 4 hard to access nuts to change speed. There was also a big gap in the middle of the speed range. Other reason is to increase the maximum speed. So I have re-mounted the 4 step idler on the motor, giving 4 pulley ratios which also eliminates that pesky idler, and using a VFD to fill in the gaps. The maximum speed is slightly higher than before, and will be higher when I figure out how to program the VFD to allow the speed control pot to set the frequency to higher than 50 Hz.  Anyone know how to programme the Altivar 28 please?

Edited By John Haine on 04/01/2015 20:11:46

[ChrisHParticipant @chrish]

Hi John, I think I have a manual for the Altivar 28 – I will look for it tomorrow, will be in touch by pm if I have it.

Chris

[John HaineParticipant @johnhaine32865]

Thanks for the offer Chris – actually I have the manual, it's puzzling it out that is the problem! Not the clearest read….

John.

[ChrisHParticipant @chrish]

John, I am sure the Altivar 28 is the inverter driving my 3 ph motor on the lathe, I think it replaced my previous inverter and not the other way round! I will try and remember what I did to programme it for me, if that would be any help.

Chris

[John HaineParticipant @johnhaine32865]

Chris, that would be much appreciated, thanks! Do you run it at speeds faster that 50 Hz? I think it is to do with the HSP parameter setting.

Cheers, john.

[Raymond Sanderson 2Participant @raymondsanderson2]

Posted by Ian S C on 04/01/2015 11:41:54:

Went out to the work shop after lunch, looked at the thermometer outside, 33*C, then the one inside 39*C, gave up on the idea of any work in that. Fire is becoming a real danger, a honey processing plant down south was burnt out yesterday. On the fire danger map, I'm right in the middle of about the biggest red area.

Ian S C

I spent the morning in the workshop till it reached 35C and sun was hitting the door way, in for lunch and rest of the day indoors in AC.

I wonder if the honey became like Honey crumble at some point yum. Not good fires raging in South Australia, Victoria and I guess we will see them here in NSW soon.

[ianjParticipant @ians]

Hi John.

I have an Altivar 28 fitted to my milling machine. It's a bit of a pain understanding the manual .

The fact you only set it up the once doesn't help.

But from what I can remember I set parameter tFr ( DrC- menue page 63) to the max output frequency I wanted

And parameter -HSP (SEt- menue page 59) to the same value.

Regards Ian

[DullnoteParticipant @dullnote]

I went to knock hill to watch rally cars, temp did not reach 3 degree C and the wind would have cut you in two. In workshop this evening made a couple of tee bolts for hold down clamp, nothing more exciting, but getting back into the shop

[Ian S CParticipant @iansc]

Hi Ray, not as warm here, as you have, got a niece in the hill suburbs of Adelaide, have not heard if she's in the fire area, I know they have bush fairly close to the house.

Yes I was going to work on a hot air engine, it's a horizontal, air cooled rhombic drive motor.

Ian S C

[ChrisHParticipant @chrish]

John Haine – I have sent you a pm.

Chris

PS as Ian says, the manual isn't the clearest to use and only using it the once certainly doesn't help, can vouch for that!

Edited By ChrisH on 05/01/2015 14:48:15

[John HaineParticipant @johnhaine32865]

Just wanted to say a big thanks to Chris H and Ian for their help on programming my inverter. I can now run my mill up to 75 Hz as I wanted, once you know the trick 'tis easy.

[Author]

Posts