Member postings for Sandgrounder

There is this one, I've never used it though.

https://www.cad-schroer.com/products/medusa4-personal/

The manual for the Jaguar Cub inverter I have on my Myford says,

'For up to 10 starts (max) per hour the inverter may be controlled by switching the unit ON & OFF by a line supply contactor only, for up to 10 starts (max) per minute the electronic RUN / STOP input on terminhals 10 & 11 should be used. In either case the motor will freewheel to a standstill and ramp up to set speed following a 300 millisec (approx) delay.

John

The same here, also fitted one to my Meddings Pillar drill which makes things so much easier when countersinking a hole after drilling, I don't have unscrew the pulley guard, loosen the motor, move the belt, c'sink the hole, loosen the moter, move the belt, lever it back to tension the belt and replace the guard.

That's the normal position for the needle to be when not being used, my 500V model which is the same as shown works perfectly, a quote from the manual describing the how they work,

"there is no appreciable restoring force to make the pointer come to rest in any particular position"

I use LED floodlights and LED GLS bulbs in my small workshop and I do get a slight strobe effect, but like Andrew says in post 2 the noise of the machine is more than enough to warn you that it's working.

I always buy my WD40 in 5L containers, it comes with a sprayer but I also use empty ones from furniture polish, window cleaner etc.

Sorry about that, I always thought they were 20pa.

HPC lists 47T spur gears, I don't know if they are in stock though.

http://www.hpcgears.com/n/products/12.spur_gears/spur_gears.phpV

Is one supposed to check them for filters? I have two, a Jaguar Cub and a Hitachi, these I bought and just connected up, mains in and motor out, I haven't checked but I doubt if there's space to add even something as small as an X2 or Y2 cap'. I would just assume that the manufacturer would have put them in if necessary.

John

A quick look at the materials used by gear manufacturers comes up with,

HPC bevel gears are supplied in EN8 and Davall in either EN1A or EN32,

these are their standard materials, I don't know if the ones used in chucks would be made in anything different.

John

Perhaps I'm lucky but up till now I've had no problems parting off on my Myford S7 with quite a small HSS blade, 1.4mm wide x 9.5mm deep mounted a rear toolpost, but if parting a diameter greater than say 16mm I do start with only a small amount, say 4mm of tool sticking out of the holder and then move it further out in stages, is this the normal way or am I being too cautious? I did find that unless the tool is perfectly square at the end it will flex and try to go in at a slight angle if too much is protruding from the holder.

John

Some good news, it is proposed to re-open the Mill and 2 other Museums.

http://www.lancashire.gov.uk/news/details/?Id=PR18/0180

I had exactly the opposite experience, I drew up a list with all the window sizes and took it to a local firm, he gave me a quote of about £2500 and I asked him to come and have a look at the job to discuss details, he refused and said he'd only look at it if gave him the order, I went somewhere else.

John

As an example of cost I've just had a replacement double glazed unit fitted with toughened glass, size was 900mm x 800mm, total cost of unit plus fitting £80.

John

Edited By Sandgrounder on 03/03/2018 15:31:06

And don't be tempted to do what I did, putting a cup brush onto the threaded spindle I screwed it on a couple of turns and the thinking I would be clever in saving time switched on, the grinder accelerated to about 10000RPM in about a microsecond and the brush screwed itself onto the spindle so hard I had to hacksaw it off.

John

When I first heard the term many years ago I was never sure as to whether they were 'duck' or 'duct' boards, pronunciation almost the same and 'duct boards' always seemed more logical as they were boards to cover ducts and keep your feet dry.

John

My die holder has 'The Lockwood Tool Co' Huddersfield on the box, use it most of the time on the S7 but will single point screw cut or at least take the bulk off if it's about M8 or above in stainless and finish with a die..

John

Hi Ed,

Welcome to the forum, I obviously missed your previous posts and have just seen your latest one regarding 'Myford chuck oiling', I assume you are the same Ed Dinning that I see at Golborne BVWS event, I'll see you at the April meeting if you're there.

John M0GLN

I worked at Mullard Magnetic Components, Southport, it had moved from Mullard Blackburn Works in the 1950's along with a Valve Manufacturing Facility which was on a different site in Southport.

A while ago I posted this, it shows me on the right hand side of the photo, we were casting some Nimonic type alloys used for Tungsten wire swaging.

http://www.model-engineer.co.uk/sites/7/images/member_albums/152997/671635.jpg

John

Edited By Sandgrounder on 19/01/2018 14:17:46

I won't ask you what you did with it, you never know who's reading these forms, LOL

John