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Member postings for ronan walsh

Here is a list of all the postings ronan walsh has made in our forums. Click on a thread name to jump to the thread.

Thread: Spindle bearing Colchester Chipmaster
18/09/2018 22:08:35

The price of spares for colchesters is a scandal, one of many reasons not to buy one.

Thread: What has happened to fly spray?
17/09/2018 00:12:26

Nothing does what it is supposed to anymore, paint stripper does not strip paint anymore, fly spray as far as i can tell is deodorant for fly's underarms. Seeing as terrorists use all sorts of ordinary household products to make explosives, i would not be surprised if in the near future you need a licence to buy a pint of milk.

Thread: bridgeport spares stockists
06/09/2018 14:58:35
Posted by larry phelan 1 on 06/09/2018 13:44:12:

Dont know if this would be of any interest to Members wanting stuff from America,but we have a service here,operated by our Post Office,whereby we can have stuff delivered from America to our local Post Office for a very moderate charge. I have not used that one yet,but I have used the service from UK,where the delivery cost was way over the odds,in one case £12 ! I had me goods delivered for 3.50 Euro ! You can do the Maths yourself.

If it would help to have your parts delivered here and have them collected perhaps by a friend visiting,I would be happy to assist. I,m sure something could be worked out.

Is that addresspal Larry ?

06/09/2018 13:06:46

Thank you all for the replies.

05/09/2018 21:12:55

Who is there in the UK, or possibly Europe, that stocks Bridgeport spare parts ? I have tried dealing with Sorted in Bristol, absolute nightmare and would not bother with them again, and another company, Goodwin i think, who wanted £30 P+P for three grubscrews, ditto.

I know you pay over the odds when you are a one man band or hobbyist trying to buy off professional outfits, but thats taking the wee.

I only need a handful of small fiddly parts to have my Bridgeport/Tom Senior finished, in time for a few winter projects.

There must be somewhere in Europe that can supply parts efficiently and not be a rip off ?

Thread: Work done with limited equipment
03/09/2018 22:08:21

Well one of my interests, shooting, has led me to look at some of the high end shotguns out there. Most of the older British, Belgian, Italian and Spanish guns, were made with little more than hand files, hammers and chisels, and very limited machinery such as maybe a pillar drill.

All changed now of course, machinery takes away a lot of the drudgery , but old fashioned hand tools still have their place.

Thread: Tailstock tapping chuck
31/08/2018 20:22:47
Posted by roy entwistle on 31/08/2018 14:38:50:

Ronan Coventry die head for a tap ??

Roy surprise

God yes, don't know what i was thinking.

31/08/2018 13:04:53

Coventry die head ?

Thread: ABB ACS50 VFD
29/08/2018 20:11:46

I have it sorted now, a chap on another forum told me to connect the two sides of the switch using a diode. I had done this before with a piece of wire and all it achieved was reversing the motor, no matter which way the switch was turned it still turned the same way.

I scavenged an LED out of an old radio, put it across the terminals of the switch and hey-presto, it worked. Turn the switch one way-clockwise, turn it the other way-counterclock.

Thanks to all who assisted and took the time to answer my questions.

29/08/2018 17:08:46

Thanks for all the help and kind offers, I will work my way through them tonight and see if i can get the thing to work as i would like. I am sorry i bought ABB, they are not user frendly to say the least, the manual is a joke, and the company unhelpful.

28/08/2018 22:49:35

Thanks john, its as much use as a chocolate teapot i am afraid. It shows a circuit diagram for the control wiring that does not seem to work.

28/08/2018 22:36:44

Does anyone have a vfd the same as the make and model of the title ? I am having endless difficulty wiring it up to a switch so i can run the motor it controls in both forward and reverse.

The motor is on a bridgeport head, so i need to run it both directions.

Thread: Bridgeport 2j speed adjustment
25/08/2018 19:11:21

i think i found the trouble, there are two clamping bolts that go into the movable sheave on the motor shaft to take the tension off the spring. I thought they were supposed to be there, so i have removed them and things have improved. But it turns out the speed indicator plate on the front of the head is the incorrect one for my head. So i will have to find and buy one.

25/08/2018 18:22:31

Thanks fellas, yes i know that much. What i need to know is how do you adjust the screw in the centre of the head, on the top that controls how much the front sheve opens and closes ? I have a situation where when i wind the handle the spindle speeds up, and then slows down again even though i continue turning the handle in the same direction.

There must be a method or procedure on how to adjust this system.

25/08/2018 16:39:24

I fitted a Bridgeport 2j vari-speed head to my Tom Senior mill during the summer. The head is a heavy old lump, about 180lbs so no way i could lift it by myself and my shed to too low to use a hoist or lifting gear.

So i split it into two separate pieces, the upper and lower. Having now got the whole thing back together, aligned, trammed etc, and i am starting to run the machine, there is an issue with the speed selection of the spindle.

It is controlled by a handwheel which you wind in either direction to raise or lower the speed. I do not know how to adjust this particular feature, there is no mention in the manual.

Would anyone happen to know how to do this correctly ?

Thread: Spring steel strip
25/08/2018 00:46:01

You can use o1 or silver steel, full harden it by the usual heating to red heat, holding it for a few minutes and quenching. Then you can temper by putting the spring in a bath of lead and quenching.

Thread: Restoring a steel cam lobe
21/08/2018 01:02:39

I had a pair of Newman cams for a triumph twin a few years ago, and they appeared well made to me, no machining marks , nicely polished and nitrided. Other people i know have been critical of their products, one in particular had a problem with dimensions of a hole in the end of a cam for a japanese car, reckoned they did not want to know when he raised the issue with them.

Thread: Correct name for this item please?
19/08/2018 22:09:35

Chuck it up for sale here and let it be used for its intended purpose. It would be terrible to use it for anything other than it was intended for. A bit like idiots using micrometers as G-clamps.

Thread: Restoring a steel cam lobe
19/08/2018 22:03:39
Posted by Mick B1 on 18/08/2018 09:40:50:

If there's enough left of the original cam, you can measure the rise and make a good estimate of the dwell, then grind the profile by hand with a sharpening stone.

That's what I did in '74 for my BSA A10, and when I next looked at it 25k miles later it and the follower were fine and mirror-polished. There'd been scare stories about grinding through the case-hardening, but I was too poor for any other solution, and they turned out to be old bikers' tales anyway.

It took me 16 hours with an India oilstone, but hey, I was young and carefree then... laugh

The problem with the A7/A10 cam wear, is a symptom of wear in the timing side bush, the oil pressure drops to a point where the pressure relief valve does not open, or open often enough to give the cam a shot of oil. Great engines apart from that though, and an end feed conversion to the crank see's this problem off.

Thread: Is Model Engineering in Decline
18/08/2018 21:36:27

Its the same in a lot of pass times. When i go to the shooting range, its like "The last of the summer wine". I think fellas in their 40's are about as young as it gets. The young people do show up, but they think it should be 100% fun all the time, instantly gratifying, and no work involved. I think it is like that with a lot of young people now.

Also having a "dirty hand job" is a bit of a stigma with the younger ones. I was proud to have an engineering trade, but now its all management and marketing and all that rubbish they want.

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