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Member postings for daveb

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

Thread: Makita 12volt drill
17/02/2018 20:39:23

Not sure if it's the same but I have a spare trigger from a 9v Makita drill. Gratis, if it's any good to you send me a PM..

Thread: Myford ml7 lathe problems
15/02/2018 22:11:52

If it's a Myford gearbox the leadscrew passes through the gearbox, there is a gear behind the inner cover, both outer and inner covers have to be removed to get at it, also remove the R/H leadscrew bracket which should be secured with 2 screws and 2 dowels. Make sure the clasp nuts are open then carefully withdraw the leadscrew to the right.There is an earlier gearbox which looks similar to the later one except the output gears are fitted under a cover on the right side of the gearbox. I've seen a few machines with the leadscrew joined just ahead of the gearbox. The joint is both tight and pinned, it's probably best to treat it as a solid leadscrew. If the joint won't pass through the clasp nuts you will need to slide the saddle off the end of the bed.

Thread: Please help with fitting a Myford Tri Leva
15/02/2018 19:24:51
Posted by Neil Wyatt on 15/02/2018 15:58:02:

I love this forum...

Question: How do I fit this tri-leva attachment I bought?

Answer: Sell your lathe and the attachment and buy a new one.

crying

Neil

This is the place to come to for good advice. smile d

Thread: TDA2030A Audio Amp
12/02/2018 13:31:29

Neil, watch out for exploding electrolytic capacitors. Always a risk of this with old equipment. I had one make a large dent in the ceiling.

Thread: Motorcycle General Discussion
11/02/2018 16:37:58

Thaiguzzi, Hopper, it's a 91 Evo, fairly standard 1200, will add pics to my photos. Bike was running OK when I stopped using it, only 22K miles but I decided to have the frame powder coated. I got a bit busy with other things so it took 17 years to put it back together. Enjoyed reading about your trip Hopper, may be giving me ideas beyond my ability.

08/02/2018 21:41:01

I've just put my old Harley Sportster back on the road.

Recent TV advert for Coke, old fellow doing bucket list things, final scene, riding motorbike. My wife looked at the old fellow and said, 'That could be you'. I said 'No, he looks a lot younger'.

Depressing!!!

Thread: Dovetail cutter on brass
05/02/2018 21:52:31

As Neil said and the cutter needs to be very sharp.

Thread: Recommend T handle metric key set
01/02/2018 12:13:53
Posted by JasonB on 01/02/2018 07:30:23:

I also like the Eklind tee ones, proper metal tee not a plastic moulding on a L shape.

If you are filing down ends are you mixing metric keys and imperial fixing

If you are filing the ends of Allen keys, you have c**p Allen keys. smiley

Thread: What is a “Coventry die head”?
29/01/2018 20:33:03
Posted by websnail on 29/01/2018 20:16:56:
Posted by Mick B1 on 29/01/2018 09:25:03:

Posted by Hopper on 29/01/2018 09:15:59:

...

This means that once you have cut your thread, instead of having to reverse the lathe and wind your one-piece die and holder back off again, you simply yank that handle on the Coventry head and the four toothed cutting sections snap outwards, clearing the job and allowing the carriage to be wound back toward the tailstock with the lathe still running. Saves heaps of time on production work but not that essential for home use.

...

On the ones I've seen and used, 'twas t'other way about. You 'cocked' the diehead by rotating the handle till the 4 chasers clicked into closed position, ran the diehead up the workpiece to a stop, when the chasers sprang open so you could whip back the turret to index to the next tool.

Another very good point, was that the machine did not require reversing.

Who remembers using their right hand winding out the turret after a thread and at the same time using their left to get the tool post nearer the work piece, all in the name of speed.smiley

Sort of, I would spin the capstan handle with my right hand to retract the turret, at the same time operate the slide to part off and chamfer the part with my left, in one continuous motion wind back the turret which had indexed to the stop and the pull the lever to feed the bar. You could make a lot of parts very quickly, provided you didn't get your arms tangled up. It was best if you could work without being interrupted.

Thread: Lorch & Schmidt Tailstock
27/01/2018 12:33:49

It doesn't look like a Lorch part. Possibly made here during the war years when German goods were unavailable. There were British made copies of these lathes due to their utility for instrument making.

Thread: John Stevenson Trophy
26/01/2018 11:40:30

Does it contain a ground Bridgeport? smiley

Thread: Cat Litter Recommendation
21/01/2018 22:20:40

You really need cow poop, cat poop has completely the wrong consistency, if you roll some between your hands you will see what I mean, this is best done at arms length. indecision

Thread: Please help with fitting a Myford Tri Leva
21/01/2018 12:14:44
Posted by choochoo_baloo on 20/01/2018 22:54:15:
Posted by daveb on 20/01/2018 15:28:54:

Thanks for the specific instructions Dave. Do you mind me PM'ing you if I get stuck along the way?

You're welcome, I will help if I can. Daveb

Thread: London model engineering exhibition
20/01/2018 17:14:57

Stueeee, there was a big queue inside but no one else in the entrance foyer where the searcher lurked, we had no idea what was going on. I would strongly resist any attempt to confiscate anything, AP and the exhibition organisers can run the exhibition any way they please but if there are to be intrusive entry restrictions administered by officious twits I want to know about them in advance. Not sure about the number of trade stands but they will probably have to give up if their potential customers are treated like this. Will we all be strip searched next year?

Daveb

Thread: Please help with fitting a Myford Tri Leva
20/01/2018 15:28:54

You have to undo the headstock screws, these are usually very tight. Fit the lower belt guide, remove spindle and fit belts, assemble top end and fit belts to countershaft pulley. Adjust belts one at a time until they are just tight enough, if they are too tight the roller frame will distort and cause the belt to ride off and jam. Some patience is required to get it right, I persevered and was happy very with the outcome. There is enough effort involved for many people to look at alternatives, but they would probably prefer a Super7 anyway.

Daveb

Thread: London model engineering exhibition
20/01/2018 12:59:49

I went to the Alexandra Palace model engineering exhibition yesterday with my wife. As we walked through the doors from the Palm Court a young man dressed in blazer and flannels called after my wife, 'Bag! What's in the bag?' He was most unappreciative of my reply! I understand that the organisers H&S assessment may have considered a baggage search necessary but there was no clear signage of what was going on. It was clumsy and badly organised.

Daveb

 

Edited By daveb on 20/01/2018 13:10:49

Thread: beryllium copper compression spring needed
18/01/2018 13:37:17
Posted by *.* on 18/01/2018 12:30:55:

Remembering back to my aircraft days the MoD was very cautious and careful with regard to the use and handling of BeCu. So much so those that came into contact with it had the details added to their personal records in case of future claims for industrial related illness.

Same for things like Cadmium and Magnesium Thorium.

Personally I wouldn't have anything to do with it unless you can be sure you can maintain an adequate barrier between it and all points of entry on yourself.

Lofty

Many years ago I was told that a cut from Copper/Beryllium would sooner or later lead to a heart attack. Needless to say we handled the stuff carefully.

Daveb

Thread: Ten Useful Things
17/01/2018 22:20:54
Posted by Neil Wyatt on 17/01/2018 18:42:27:
Posted by daveb on 17/01/2018 16:29:32:

Sounds like a Borrowdale needle, used in surgery, dissection, microscopy and various prodding, cutting and poking jobs.

Never heard one called that before, I've found one reference to the name on Google.

Neil

I used to sell a lot of these 50 odd years ago, seem to be referred to as Dissecting needles nowadays. Daveb

17/01/2018 16:29:32
Posted by Neil Wyatt on 15/01/2018 22:40:03:
Posted by Richard Marks on 15/01/2018 22:21:59:

Add a retractable scalpel to your list, good for cutting, picking, scraping and other things.

Edited By Richard Marks on 15/01/2018 22:22:27

Yes, but then it would be eleven, I marginally use a needle more than a scalpel. Strictly it's a dissecting needle too

Sounds like a Borrowdale needle, used in surgery, dissection, microscopy and various prodding, cutting and poking jobs.

Thread: What did you do Today 2018
16/01/2018 14:57:14

17062011004.jpgGinger cat impersonating Rommel in Bridgeport column.

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