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Vertical to Horizontal Mill conversion.

Use gear from Angle Grinder to get a horizontal mill.

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Skarven20/12/2011 18:51:19
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93 forum posts
11 photos
Hi Les
You weren't that far off, I was in England for Sandown Park last weekend, and might be going there end of January.
Skarven is better known as Cormorant with you. A bird with sometimes rather peculiar flying characteristics. (When it has caught a lot of fish.) I adopted that name when I started flying model aircraft
charlie murphy22/12/2011 11:29:15
6 forum posts
7 photos

hi
thanks to ian p for his commets and i will now take some photo's and publish them and will try and answer any questions tat crop up it maytake me a little whle but wil publish ASAP
 
cheers
charlie m
charlie murphy22/12/2011 12:07:37
6 forum posts
7 photos
hi all how do i insert images into this post please
 
thanks
charlie m
Terryd22/12/2011 12:49:33
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1946 forum posts
179 photos
Hi Charlie,
 
You have to put your photo's onto a picture hosting site such as Flikr or Photobucket etc, or alternatively upload them to 'My Photos' on this site - as I do - (but in the small print MyHobbyStore claim that they retain copyright once you upload). The site will only accept jpegs so you need to convert other formats before use.
 
Once your pictures are uploaded you then click on the picture logo above the message composition box and either add the link from the hosting site or choose one from 'My Photos'.
 
It would be really great if we had a 'How To' sticky thread like other forums so that instructions such as these could be posted there rather than us having to repeat them ad nauseum for new members.
 
Regards and a happy Yuletide to all,
 
Terry

Edited By Terryd on 22/12/2011 12:50:02

charlie murphy22/12/2011 12:55:06
6 forum posts
7 photos
hi
ian p & skarven i have uploaded some photo's which may be of some interest you can let me know what you think that applies to all any constructive comments would be appreciated
 
cheers
charlie m
charlie murphy22/12/2011 13:07:51
6 forum posts
7 photos

hi terryd
i have managed to post some photos but what a carry on i am only trying to help but will wait and see how it goes but many thanks for the help
 
much appreciated
 
thanks
 
cheers
charlie m
Michael Cox 122/12/2011 13:46:39
555 forum posts
27 photos
Hi Charlie,
That looks a really neat adaptation of the angle grinder gearbox. Do you fix the saw blade to the output shaft using flanged washers?
Mike
charlie murphy22/12/2011 14:38:11
6 forum posts
7 photos
hi mike
i use thin discs usually 125mm in dia that fit onto the grinder gearbox shaft but its open to anything you could use proper slitting discs with inserts but if you want to make it more rigid yes flanged washers could be used
 
the reason i wanted it was i had some versapak batteries which i needed to replace the internal nicads and tried using a dremel which worked but i figured the adaptor would be a better way to do it if you notice the table is driven on the mill i am not a proper engineer but a keen amateur
 
cheers
charlie m
Michael Cox 122/12/2011 15:25:24
555 forum posts
27 photos
Hi Charlie,
I think most of us are not proper engineers ( I am certainly not one) but are just keen amateurs.
Mike
Stub Mandrel23/12/2011 21:38:59
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4318 forum posts
291 photos
1 articles
Hi Skarven,
 
I understand in German it is die kormoran, but in my native land we call it a bilidowcar (the spelling may be a bit dodgy there!)
 
Neil
Skarven24/12/2011 07:04:16
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93 forum posts
11 photos
Hi Neil,
A search for bilidowcar popped up so many strange words that your native land has to be Wales! In Norway we have many names for that bird, among them kvitlåring (whitethigh), ålekråke (eelcrow), Shags ....
Skarven24/12/2011 07:41:21
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93 forum posts
11 photos
Hi Charlie
Nice pictures. I see that you have made what I am thinking of.
I picked the grinder apart to have a look at it and it looked quite good.
The grinder is a really cheap one from Biltema that I bought for about £18 a few years ago.
It is 900W at 11000 rpm.
The gear has 12 and 37 teeth giving 3.083:1. With my mill this will for 65-3200 rpm give a range of 21-1040, which should be OK.
The motor body is centered in the gearbox by a circular flange resting against the gearbox inside of the four holes for the screws connecting the gear to the motor.
The Motor shaft has a woodruff key for the small gear. There is one ballrace bearing for the motor in the gearbox, and one on the other end of the shaft.
The bearing for the output shaft seems to be quite good, with no play in any direction.
The gears also seems to be quite good, although there is a little bit of play there. I can't imagine that this should be a problem for the intended use.
 
My first thought was to remove the motor and fan, cut the motor shaft to suitable length and fix the shaft in an ER32 collet chuck.
This seems a bit long to me, so I'm also thinking of making an adapter between the ISO30 mill shaft and the grinder motor shaft, as this will make the whole thing mch shorter and sturdier.
The gearbox is grease lubricated as is, but I wonder if a hypoid gear oil (for car rear axle) might be better. The load on this gear will of course be higher in this setup, but being little bit cautious I think you could keep it down to a factor of, let's say 2, compared to the design load.
900W at 11000 rpm = 0.78Nm
mill is 1100W at 3200 rpm = 3.27Nm
The only thing now is to make the shaft adapter and the adapter between the gear body and the quill
 
Skarven24/12/2011 07:53:59
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93 forum posts
11 photos
A thought I had was to make a ISO32 collet for the grinders motor shaft. I have never seen a ISO32 collet, but it should be possible. Or maybe the cone isn't right for collets?
Cornish Jack24/12/2011 10:51:05
1228 forum posts
172 photos
Re. names for cormorants - we have a regular visitor to the end of the groyne on 'our' beach - we call it Colin
Merry Xmas (or Bah! humbug, if you prefer)
Rgds
Bill
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