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Gib on abwood

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kevin large30/04/2019 18:24:19
133 forum posts
10 photos

6inch abwood machine vice it's got some play in it but I cantc shift the gib screws any advice on this one

Oily Rag30/04/2019 19:06:12
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22 forum posts
9 photos

I have a 4" Abwood which when I aquired it had a similar problem. I found that the gib screws had 'back up' screws as 'lockers' which beared down on the adjusters below them. If you don't have external locknuts, back out the screw to check whether it is also uses a similar locking system.

kevin large30/04/2019 19:50:53
133 forum posts
10 photos

Ah this maybe the problem will have another look tomorrow

The screws are slotted will try some heat and see if I can get them out

Peter F30/04/2019 21:42:11
98 forum posts
23 photos

Hi Kevin, I've just taken the grub screw out to see if there was anything out of the ordinary, from the picture of mine, you can see it's just a normal grub screw.

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On a side note, my tilting vice came without what I've seen looks like a little knurled wheel with what I presume is a tapered pin that locates in that hole for quick leveling of the vice, does anyone know A, where I could buy one, or B, what the Taper is so I could make something.

Peter F30/04/2019 22:04:10
98 forum posts
23 photos

I was just thinking, those grub screws seemed a bit short, so went and took one out again, and looked in there with a light, and Oily is correct, the hex grub screws are just lock screws, there is a flat head screw below that actually tightens the gib.

Baz30/04/2019 22:12:23
225 forum posts

Peter F if memory serves me correctly the zeroing pin is parallel, it is just a plain reamed hole.

Peter F30/04/2019 22:39:05
98 forum posts
23 photos
Posted by Baz on 30/04/2019 22:12:23:

Peter F if memory serves me correctly the zeroing pin is parallel, it is just a plain reamed hole.

Thanks Baz, after cleaning with a ear bud, it appears you are correct, It's just a bit bigger than 5mm, I assume it's Imperial, but being in my mid 30's, I never work in Imperial and don't own any imperial drill bits to check size, If anyone owns one of these and can measure the pin so I can I can buy some rod to make one, I'd appreciate it.

David George 101/05/2019 08:23:07
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841 forum posts
292 photos

Hi Peter the pin on ones I have used in the past had a thread larger than the pin to extract the pin but they were never used as the vice would be clocked level or at an angle when nessesary with a sine bar, and the pins were discarded as not accurate enough.

David

kevin large01/05/2019 12:23:18
133 forum posts
10 photos

Thanks all it was as said adjuster behind

JohnF01/05/2019 12:36:51
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842 forum posts
95 photos

What type of screws are they? Allen, slotted head or ????

After removing the lock nuts there are various things to try but it does depend on the screw type. If all fails drill out and re-tap the holes.

John

Edited By JasonB on 01/05/2019 13:27:23

JohnF01/05/2019 17:38:32
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842 forum posts
95 photos

Well not sure what happen here -- spotted the post in "more latest posts" link today and it said 0 replies ??? hence my post and questions which are of course already answered a few days back -- wonder why it said zero posts/answers ??

John

Peter F01/05/2019 23:34:27
98 forum posts
23 photos
Posted by David George 1 on 01/05/2019 08:23:07:

Hi Peter the pin on ones I have used in the past had a thread larger than the pin to extract the pin but they were never used as the vice would be clocked level or at an angle when nessesary with a sine bar, and the pins were discarded as not accurate enough.

David

Thanks David, I assumed it would have to be a very tight fit for it to be accurate, which is why I assumed it would be a taper fit, but as you say, might as well clock it for real accuracy, it was bought as a secondary vice for its tilting ability.

JohnF, This post was posted 3 times for some reason, this was the only one that had replies when I saw, so I also replied here, you probably posted on another of the triple thread posts.

Howard Lewis02/05/2019 13:24:52
2149 forum posts
2 photos

Abwood being an English product of several years ago, the threads and dimensions are very likely to be Imperial, ( BSW or BSF ). The Alignment pin is most likely to be 1/4", or if "about 5mm" it may be 7/32"

Why not check the size as accurately as possible (if you can't find out from a manual or some other owner ) and make one. You may even be able to find a drill (use the shank ) or a bit of Silver Steel of the right size.

Howard

Baz02/05/2019 16:10:17
225 forum posts

Just checked my vice and the pin is 3/16 diameter.

Peter F02/05/2019 23:17:13
98 forum posts
23 photos
Posted by Baz on 02/05/2019 16:10:17:

Just checked my vice and the pin is 3/16 diameter.

Baz, thanks for taking the time to measure that, but a 5mm drill was a bit loose in mine, and 3/16 is showing to be 4.7mm, so mine is clearly a different size to yours unfortunately, I'll just have to turn something down until I get a good tight fit, thanks again.

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