Needs Pictures: 0
Picture(s) thanks: 0
Results 16 to 30 of 74
-
4th Jun 2015, 12:16 AM #16Senior Member
- Join Date
- Feb 2012
- Location
- Willunga
- Posts
- 114
Thanks Bob!
I have been blowing out all of the oil ways as I have gone and have all the nipples in a placky bag waiting to be cleaned up.
Is that spindle a genuine Hercus accessory or one that you made? How did the machine go as a surface grinder? I have been wondering as I have assembled it if I could set it up to do small things...
Regards
Ian
-
4th Jun 2015, 12:38 AM #17.
- Join Date
- Nov 2008
- Location
- Perth WA
- Age
- 71
- Posts
- 6,459
The spindle extension is the real deal Ian.
The surface grinding was a fleeting experience. It works but the downfeed is not real sensitive. The incorporation of a dial indicator to more accurately gauge the feed might help. I look forward to more experimentation with the No.1 as a surface grinder.
I have purged grease from oil nipples by holding them in a vice and pumping oil through them with a pom pom oiler. It also establishes how effectively they work.
Bob.
-
5th Jun 2015, 08:25 PM #18Senior Member
- Join Date
- Feb 2012
- Location
- Willunga
- Posts
- 114
Thanks Bob, that is an impressive machine, if I could get that much capacity it would be all I ever needed.
The upper table had quite a lot of surface rust so I had my first go at electrolysis, seems to have worked very well.
IMG_0295.jpg
While this was cooking I checked the under table with a dial indicator. That Mitutoyo is the best DI that I have and that is the most rigid mounting that I could contrive. With this setup I couldn't measure any variation along the X or across the Y. The table lifts a little, around half a thou when the rack is engaged to move the X but settles again when stationary. I imagine that the shape of the pinion teeth cause this. I will check it again with the heavy upper table in place.
IMG_0301.jpg
I then had a proper look at the accessories. This lot just seems to be standard Hercus, just dirty!
IMG_0296.jpg
There were however a couple of things that surprised me. At the front is most (missing the upper clamp) of a Reliance drill sharpening jig, it is described by Harold Hall here; http://www.homews.co.uk/page354.html I will be interested to have a play with this later. Behind the jig are two micrometer heads, not sure if they are part of the Hercus setup?
IMG_0297.jpg
Regards
Ian
IMG_0301.jpgIMG_0296.jpgIMG_0297.jpgIMG_0295.jpg
-
5th Jun 2015, 09:12 PM #19.
- Join Date
- Nov 2008
- Location
- Perth WA
- Age
- 71
- Posts
- 6,459
I am interested in those stops Ian, something similar was the subject of this thread - http://www.woodworkforums.com/showth...70#post1846970
Do you reckon there is any chance of a few close up photos if you get an opportunity?
Bob.
-
5th Jun 2015, 09:15 PM #20Most Valued Member
- Join Date
- Aug 2011
- Location
- Melbourne
- Posts
- 4,779
Hi Ian,
It's starting to look good. Once you finish cleaning and putting it back together, I will bring a huge amount of joy to use. The movement of the DI could be from dragging or side stress when moving the table from a less than rigid setup. You could try a DTI with the stylus set at nearly parallel to the table. I find it usually creates less drag stresses on the mounting setup.
SimonGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
-
5th Jun 2015, 10:39 PM #21Senior Member
- Join Date
- Feb 2012
- Location
- Willunga
- Posts
- 114
Hi Simon - The DTI is a good idea, I will give it a try.
Bob. The earlier post about stops is very interesting. I think that they are painted black so not Hercus. I will clean them up and do some photos. They are in a terrible state. I have been thinking about how to approach them, I might start by dropping them in some solvent and then a soft brush.
Regards
Ian
-
6th Jun 2015, 12:28 AM #22Most Valued Member
- Join Date
- May 2011
- Location
- Murray Bridge S Aust.
- Age
- 71
- Posts
- 5,959
-
6th Jun 2015, 08:39 AM #23.
- Join Date
- Nov 2008
- Location
- Perth WA
- Age
- 71
- Posts
- 6,459
-
7th Jun 2015, 08:03 PM #24Senior Member
- Join Date
- Feb 2012
- Location
- Willunga
- Posts
- 114
Hi Bob
I had a go at those stops today and an interesting exercise it has been. Firstly they don't belong to the machine, they are made to fit a 0.34+ slot (probably actually 3/8) and the slot on the front of the table is 0.3.
IMG_0305.jpg
Here I have cleaned both and assembled one. They are very strong and made to be bumped. The spindle thread is 5/16 20tpi, that is 50 thou per revolution. This gives about 1/2" of useful travel, perhaps the spindle has been kept short to minimize the risk of it bending? The spindle lock (a curved recess in a shaft at 90 deg to the spindle axis) is very strong and should protect the spindle. They have had plenty of use and the one that is disassembled has been tapped along a track with a hammer. I had to recut the head of the screw that fits into the the head of the spindle to allow me to get it apart.
IMG_0308.jpg
One of them had a t bolt, it is a bare 1/2" square, that is only 1/16" of grip on either side of a 3/8" slot. I wonder if it is designed to slip under severe load?
At this point I knocked off thinking well if I mill them to fit a 0.3 slot I can use them on the Hercus and also my Centec mill which has 0.3 slots on the X,Y and X axies.
IMG_0307.jpg
All this time I was wondering what they came off. When I came in the penny dropped. When I bought the machine the guy had one of these 'Pocket Size' surface grinders for sale, this from the 1960 Macpherson catalogue. It was in a similar state to the Hercus and had apparently come from the same source. I thought about buying both but as the tax office had just performed a walletectomy stopped at one.
IMG_0309.jpg
In the catalogue you can just about make out the micrometer heads and they are referred to in the text as 'Stop dogs'.
These things really should go back to the surface grinder from which they came. If whoever purchased the machine contacts me via a PM they can have them.
Regards
Ian
IMG_0305.jpgIMG_0308.jpgIMG_0307.jpgIMG_0309.jpg
-
7th Jun 2015, 08:37 PM #25.
- Join Date
- Nov 2008
- Location
- Perth WA
- Age
- 71
- Posts
- 6,459
Thank you Ian.
I know two blokes on the forum with those little Macson grinders. I had a look at photos I have of a local one owned by Tom W , but his appears to be stopless. Christian Groves' was in bits when I visited him in Melbourne. I imagine they would both be interested in seeing your photos.
With the Centec you'd be a fellow member of the shoebox machining club!!
Bob.
-
7th Jun 2015, 11:14 PM #26Senior Member
- Join Date
- Feb 2012
- Location
- Willunga
- Posts
- 114
Cheers Bob, I have found the shoebox machining club a very comfortable place to be! It has been easier to send the very occasional big job out than than to have a lot of underutilized, heavy and space consuming capacity around.
Regards
Ian
-
7th Jun 2015, 11:51 PM #27Senior Member
- Join Date
- Feb 2012
- Location
- Willunga
- Posts
- 114
Bob - A couple of stops visible here
http://www.gumtree.com.au/s-ad/maced...der/1066542788
Looks like they have used them to lock the X.
Regards
Ian
-
9th Jun 2015, 09:36 AM #28.
- Join Date
- Nov 2008
- Location
- Perth WA
- Age
- 71
- Posts
- 6,459
Table Lock
Hi Ian,
The grinder I have had a knurled thumb wheel fitted to the underside of the table feed hand wheel boss casting which served to lock the table. The boss had been drilled and tapped and the threaded section of the thumb wheel ( actually a cap screw with a knurled wheel attached ) was brass tipped. I don't know if Peter Fou made this modification or if it was based on a factory lock. I have subsequently turned up a one piece affair, with the wheel slightly larger than its predecessor and it works well. If your No.1 is devoid of this feature I can post a couple of snapshots.
Bob.
-
9th Jun 2015, 08:57 PM #29Senior Member
- Join Date
- Feb 2012
- Location
- Willunga
- Posts
- 114
Hi Bob
Mine has a 'T' handle to lock the table feed hand wheel but no brass tip, unfortunately. However even with the shaft locked there is still a whisker of movement in the table, I will measure it later. There must be a small gap between the pinion teeth and the rack teeth which I can feel.
I reassembled the spindle yesterday and the information the you sent me really saved my bacon. I hadn't paid enough attention to the correct orientation for all of those springs when I took it apart! Thanks.
I put the collets and all of the rusty small parts from the accessories into vinegar overnight. Not as some here said in order to make pickles but rather to remove the rust. This has worked really well. I gave them a rough scour this morning before putting them back for the full 24 hours. After this they scoured off really easily. Once cleaned a surface of flash rust quickly formed which I have here converted with some phosphoric acid. I will clean the surface again in the morning and then oil them for storage or reassembly.
Regards
Ian
IMG_0310[1].jpg
-
9th Jun 2015, 09:19 PM #30Senior Member
- Join Date
- Jun 2012
- Location
- ex Perth, now Mittagong
- Posts
- 105
Bob, the table lock was my creation, I had no idea what the original looked like so I made a quick & dirty fudge. Being virtually out of sight I went for function not beauty.
Peter
Similar Threads
-
Hercus Tool and Cutter Grinder
By Geoff123 in forum THE HERCUS AREAReplies: 5Last Post: 28th May 2015, 09:43 AM -
Hercus Tool & Cutter Grinder For Sale in Queensland
By A J in WA in forum THE HERCUS AREAReplies: 0Last Post: 7th Jan 2014, 11:10 PM -
Hercus No.1 Universal Tool & Cutter grinder
By A J in WA in forum THE HERCUS AREAReplies: 3Last Post: 3rd Jan 2014, 01:48 PM -
hercus No.1 tool and cutter grinder
By allterrain50 in forum THE HERCUS AREAReplies: 5Last Post: 29th May 2011, 07:10 PM -
Hercus tool & cutter grinder
By steran50 in forum METALWORK GENERALReplies: 2Last Post: 23rd May 2011, 08:20 PM