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What Did You Do Today 2019

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Ian P15/01/2019 08:53:23
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2050 forum posts
88 photos
Posted by Bazyle on 14/01/2019 17:28:18:

Phil, Do you know if the tacho also provides an output pulse that can be used by something else? Perhaps the sensitivity was specified for a magnet flat on and would improve with the sensor facing the magnet, not that it matters now it is working.

I second the magnet orientation reducing the operating distance but as Bazyle says it working, so just leave it alone.

As installed the magnet is presenting the N & S poles equally to the sensor face so possibly have a cancelling out effect. There are lots of different sensor types and some which have an internal magnet might be upset with a moving magnet.

Ian P

Douglas Johnston15/01/2019 09:14:42
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560 forum posts
24 photos
Posted by Iain Downs on 14/01/2019 20:52:34:

I have a nice note from the vendor of the £12.80 gear cutting set explaining that the batch they got in was poor quality (yeah, right). They offered no options, so I asked when they would get a good batch in....

You never know - I might just get something if I keep on. At least a refund...


Just read my message from the vendor saying the same thing, might have known it was too good to be true. As an aside I saw and bought an item from Amazon a couple of weeks ago that was listed at £3.99 when it should have been £39.99. I fully expected to get a message saying the listing was wrong, but to my delight the item arrived a few days later and I only paid the £3.99.

Doug

Philip Rowe15/01/2019 10:34:20
164 forum posts
14 photos
Posted by Bazyle on 14/01/2019 17:28:18:

Phil, Do you know if the tacho also provides an output pulse that can be used by something else? Perhaps the sensitivity was specified for a magnet flat on and would improve with the sensor facing the magnet, not that it matters now it is working.

Bazyle, there is an unused lead on the display but whether this is an input or output I have no idea, the Chinese data sheet that came with it tells me little except to confuse!! Also you are correct about the magnet, I have since tried the sensor at a right angle to the way it is shown in my photo and the sensitivity does in fact exceed the 10mm specified but as you say it hardly matters now as it is working.

Phil

Neil Wyatt15/01/2019 11:22:25
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15707 forum posts
659 photos
73 articles
Posted by Douglas Johnston on 13/01/2019 18:43:27:

Iain, you have just cost me £12.80. I just could not stop my finger pressing the buy button for the set of cutters. Like you I do not have an immediate plan for them but have wanted to try gearcutting for years but never got round to it. At that price there is very little to lose and perhaps a lot to gain, so hears hoping they are at least usable.

Doug

Edited By Douglas Johnston on 13/01/2019 18:44:42

Looks like you are out of luck:

This listing was ended by the seller because there was an error in the listing.

N.

Paul Kemp15/01/2019 13:49:45
240 forum posts
9 photos
Posted by Douglas Johnston on 15/01/2019 09:14:42:
Posted by Iain Downs on 14/01/2019 20:52:34:

I have a nice note from the vendor of the £12.80 gear cutting set explaining that the batch they got in was poor quality (yeah, right). They offered no options, so I asked when they would get a good batch in....

You never know - I might just get something if I keep on. At least a refund...


Just read my message from the vendor saying the same thing, might have known it was too good to be true. As an aside I saw and bought an item from Amazon a couple of weeks ago that was listed at £3.99 when it should have been £39.99. I fully expected to get a message saying the listing was wrong, but to my delight the item arrived a few days later and I only paid the £3.99.

Doug

Hmmm, this rings a bell! When I got my mill I wanted to get it up and running, was on a tight budget, so looked to China for VFD's. I found one supplier on the rainforest marketing site that was offering what I needed for just over £20ea!! So I ordered two which including shipping came to around £48! I didn't expect the transaction to go through as the gear cutters but got order acknowledgement and then notification of shipping. Eight weeks later I noticed the tracking said they had been delivered! Checking they were apparently at the mail reception centre in Southampton! Vendor then advised they had been damaged in shipping and were being returned to them and offered a refund. I refused a refund and requested they send replacements, they said they couldn't send replacements until the originals were recieved back and after a bit of bouncing around they refunded the money anyway and refused to respond to any further contact. Luckily I have a friend who does a fair bit of business with China and he passed me a local contact to whom I explained the situation and copied the correspondence. He found the company and contacted them and apparently their MD was very rude to him, he got annoyed and referred them to the Chinese equivalent of trading standards, 3 weeks later I got my VFD's with a grovelling apology FOC! Real result. Not a normally achievable resolution but very pleasing, subsequently the supplier has contacted offering to supply a coat rack, shoes and other stuff FOC in return for a positive review! I have been waiting for the triads to knock on the door ever since!

Paul.

Douglas Johnston16/01/2019 21:13:32
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560 forum posts
24 photos

Got my refund for the gear cutters but was not impressed with the reason the vendor gave ebay for ending the sale. Apparently it was my fault for not wanting the item. What a cheek!

Doug

Neil Wyatt16/01/2019 21:58:47
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Moderator
15707 forum posts
659 photos
73 articles
Posted by Douglas Johnston on 16/01/2019 21:13:32:

Got my refund for the gear cutters but was not impressed with the reason the vendor gave ebay for ending the sale. Apparently it was my fault for not wanting the item. What a cheek!

Doug

Give them suitable feedback.

Neil Wyatt16/01/2019 22:08:48
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Moderator
15707 forum posts
659 photos
73 articles

I'm fitting a new body to a guitar I 'made' in 1993 using a neck I found in a skip and various Frankenstein bits and bobs. My plywood bod weighed a ton, so I ordered a pre-shaped one. Its very light and the wood is a 'soft hardwood' after getting the dents out (it fell off a stool) with eth damp tissue and iron technique, I gave it several coats of dilute PVA to toughen it up a bit.

Tonight I've been airbrushing it with dilute caligraphy ink in an attempt to create a blue sunburst. This has highlighted a filled non-porous area that's in an annoyingly visible spot. I've painted it with neat ink and tried to blend it in. I think a third spray session will be needed, it won't be too bad for an amateur attempt!

Some minor trimming of the woodwork still to be done to make room for a Floyd Rose (copy) bridge and allow for the neck being Gibson scale length despite being strat shaped...

Then I will give it several coats of hard polyurethane varnish (I know it should be nitrocellulose, but this is a hack not a work of art) and wait for the scratchplate material to come.

Neil

Ian Hewson16/01/2019 23:06:18
251 forum posts
19 photos

Neil, you should be an archer with all the strings you have for your bow🤗

Iain Downs17/01/2019 07:09:02
418 forum posts
235 photos

My own attempt at a stringed instrument was an electric bass guitar built in metalwork (and woodwork) at school.

Unlike Neil's it was pretty shit. the neck was a piece of square steel tube with quadrant glued either side of it and the body made up of bits of wood with a plywood top.

It did work, though.

The only real value it has in my history is that the frets were spaced according to the first useful computer program I ever wrote, running on the York University Computer (which was near the school).

Which appears to have set the stage for the rest of my career!

Iain

Neil Wyatt17/01/2019 21:21:16
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15707 forum posts
659 photos
73 articles
Posted by Iain Downs on 17/01/2019 07:09:02:

Unlike Neil's...

I doubt it

Neil Wyatt17/01/2019 21:24:39
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Moderator
15707 forum posts
659 photos
73 articles

Just for entertainment, this is it with its old body. At least this will give Jason an opportunity to take the p*** again

deathburger 3.jpg

Iain Downs18/01/2019 07:02:50
418 forum posts
235 photos

There is no aspect of that instrument which is not 1,000,000 than on mine.

Mind you, then there's the player...

Most likely you can probably actually play the instrument whereas I.....

Iain

bricky18/01/2019 16:40:56
356 forum posts
47 photos

Finished making the carb, for the Brian Rupnow Rockerblock i/c engine.Just the fuel tank to make and set the cams and the ignition system.

Frank

Pete White18/01/2019 20:23:42
46 forum posts
6 photos

Well apart from rebuilding my Ajax donkey saw, I sawed off three wheel blanks, with my Manchester saw, from a 4 inch billet. It has not had such a workout for quite a while.

Why only three blanks? .................going to try out the Ajax tomorrow. One must go, a man does not need two donkey saws. lol

Pete White18/01/2019 21:08:41
46 forum posts
6 photos

P. S. 45 minutes a blank, EN8, turned it once when about a third way through.

Bet a fancy band saw would have whipped that by a mile, but both my saws came F.O.C...................and I have owned them for thirty years.

mechman4822/01/2019 19:48:20
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2299 forum posts
387 photos

Spent a couple of hrs modifying the gear change handles on my WM250V-F, have had the idea from seeing the handles on the 280 / 290V-F handles some time back & put it on my 2duit list... today was the day 2duit. Carefully removed the roll pins from each handle as there were a double ball set up for the detents ( I quickly found out ) whereas the manual shows only 1 ball bearing in ea. knob so be careful if you decide to do this mod. Had to remove the drive / change wheel guard from the headstock to allow better access to the forward/reverse knob roll pin. Once the feed rate knob was removed it was drilled / tapped 5mm for a depth of 8mm at an appropriate distance from the edge, in my case 6 mm ( this is arbitrary ) a 6mm silver steel rod was machined & threaded 5mm to fit, then Loctited in & the knob replaced. The same procedure applies to the feed rate knob, ending up with a much easier manipulation of either knob with this mod.

gearbox change levers.jpg

George.

not done it yet22/01/2019 20:15:39
2720 forum posts
11 photos
Posted by mechman48 on 22/01/2019 19:48:20:

gearbox change levers.jpg

George.

Rather glad you followed the instructions on the panel - and stopped, or at least only removed the knobs while the machine was running slowly!smiley

mechman4822/01/2019 20:26:41
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2299 forum posts
387 photos

face 20 … difficulty in translating... Google doesn't have Chinglish in its repertoire.

G.

J BENNETT 122/01/2019 20:36:19
36 forum posts

That's a very interesting mod. I have an old WM250 (Circa 2005) with the same gearbox and find the knobs quite hard to use at times. Also the pointed arrows on the ABC knob on mine dosn't line up very well.

A couple of weeks ago I decided to change the gearbox oil after looking at a thread by Journeyman. Since the drain plug is no where near the bottom of the gearbox you have to take the front cover of the gearbox off. Fortunately you dont have to remove the knobs which remain fitted to the front cover with the detent mechanism. I was thinking of taking the knobs off, but as you said, they have roll pins and I could not see any easy of moving them round just a bit.

The oil was like thick brown treacle! Managed to clean up the oil sight glass, which is a push fit with an o-ring, which had become so dis-coloured that you couldn't see the oil level. The gearbox had also been leaking for a long time making a horrid sticky mess in the splash tray. After a good clean up it went back together quite easily with some silicone gasket and ptfe tape on the drain and filler plugs. I have still got a small leak from the sight glass however. Would have liked to replace the O-ring but didn't have one the right size to hand. You know how it is, you have a great big box full of O-rings but never one in the size you want!! In hind sight I should have put a smear of silicone around it.

To get at the gearbox front cover screws you remove the four small hex headed screws and the alloy front cover lifts off over the knobs. The four deep holes allow access to the screws that fix the gearbox to the headstock, so don't touch those!!.

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