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Member postings for Jak2g

Here is a list of all the postings Jak2g has made in our forums. Click on a thread name to jump to the thread.

Thread: Boring out a hole in middle of aluminium disc
30/04/2021 09:56:35

Good day everyone

I have an 8 inch aluminium disc, 1/2 inch thick, that has an 8mm hole in the centre. I need to enlarge that hole to 19mm.

I have a myford super 7 and a warco GH universal milling machine.

Keeping in mind that I am fairly new to machining, I am having difficulty figuring out the best way to enlarge the hole. Lathe or milling machine? I have a faceplate for the lathe but given the size of the disc I think it would be fairly difficult to secure.

Any recommendations to set me on the right track would be greatly appreciated.

Cheers

Thread: Moving warco gh universal into workshop
21/03/2021 19:16:42

Hallelujah!! Flipped the guard hinge and it worked!! Relief!!

And, yes, it is always a good idea to check machines when they arrive.. that was a silly oversight due to eagerness.

21/03/2021 19:05:49

I didnt realise there was a safety switch on the chuck guard.....let's hope that is it. I'm gonna go check right blooming now.

21/03/2021 18:35:23

20210318_174324.jpgAlas, its in situ but DOES NOT RUN. the green power light is on, but when I hit forward or reverse it does nothing. The only thing I can think is that the motor is wired wrong, but I rewired it according to the photos I took before dismantling so unless it was wired wrong to start with, then it shouldn't be that. Heres some photos and across them you can see the wire names. These were taken before disassembly. Any ideas? I'm very very disappointed after cleaning it all down and assembling it after all that graft to get it to the shop.

just to confirm - top left = U1, top right = V1, bottom left = V2, bottom right = U2. V2 is also has another wire on it, a blue one. 20210318_174345.jpg20210318_174304.jpg

20/03/2021 08:48:35
Posted by MC Black on 19/03/2021 20:40:21:

What size Hex Key?

Where do you live? I have all sorts of large Hex and Allen Keys

MC

Hello sir

I'm in Leeds but luckily have found a reasonably priced kit which should be arriving today! The offer is much appreciated though!

19/03/2021 18:37:50
Posted by JasonB on 19/03/2021 17:22:28:

just read your post again whey you said you had removed the adjusters, these are infact the locks the locks. The taper gib is adjusted by the screws at either end of the table one pushes it in to tighten the other pushes it out to loosen. Take them both out and use a brass drift as I mentioned from what you will be able to see is the narrow end.

You hit the proverbial nail on the head. I loosened those out completely, and saw (because of your post) that one end of the gib string is narrower. A slight tap and it began to slide out.

Everything is off now, save for the column. Of all the tools I own, I didnt have a large enough hex key for the screws. Attempted with vice grips, that worked for 3 but the fourth ain't giving in. Amazon to the rescue. We'll hopefully have it off my drive for tomorrow.

Thank you all, again, for the help.

19/03/2021 10:41:43

Thank you everyone. I think its something to do with the taper gib. Never worked with one before. My sx2p was different. I don't think I've taken into account the importance of the screw on the left and right sides where the gib straps end.

19/03/2021 09:57:29
Posted by HOWARDT on 19/03/2021 09:51:46:

The gib once loosened should simply slide out. Make sure you have loosened the gib lock screws.

Thats what I thought. I'm not missing something am I- the gib lock screws are the two plastic black levers, you can see one in the photo top middle - these have need completely backed off and one entirely removed...

19/03/2021 09:56:01
Posted by JasonB on 19/03/2021 09:41:31:

looks like a taper gib, try sliding the table off in the opposite direction as one way will tighten the strip and the other make it looser

If not a brass drift on the SMALL end of the strip should move it.

Tried that but unfortunately didn't make a difference. The table is quite tight / stiff even when using the screw.

19/03/2021 09:20:43

Heres a photo of what I'm looking at20210319_084759.jpg

19/03/2021 09:16:10

Hello all

I've taken the plunge and purchased the GH Universal. With much help you you all, especially howardt, i felt confident the move could be done.

Now the mill is in my drive, and its a beast! I've managed to get the head off, but am stuck on something much less daunting (at first sight) - removal of the table. I've managed to remove the feed screw, but the table seems nearly immovable left to right without being aided by the screw. I've removed the gib screw adjusters but that didn't help. Do I need to remove the gib strip? There are two screws / plugs on either side of the table that look to keep this in place, but - if I need to remove the strip - how do I do this with the table in place? Is it a case of knocking it out with the assistance of a hammer / something narrow that can hit the side of the strip? Id really appreciate your help guys, I think I'm up against it with this one and the weather and its already spent a night in my drive without the head!

Thanks!!

28/02/2021 09:26:55

Thank you both for the info. I think ill be able to make it happen. Howard: I've sent you a pm since you've just dealt with exactly what I'm doing.

28/02/2021 08:07:42

Hello all

I am planning on upgrading my sx2p mill to something larger and more long term. As with everyone, price and space is a concern. The biggest I can go is either a wargo gh universal or perhaps the warco vmc. At this point, my concern shifts to actually getting it in to the shop.

When the machine arrives it will be brought to my drive. I need to then get the machine up three fairly narrow steps. It then goes over around 10 meters of grass. Then, up a foot and through French doors into the shop.

I'm concerned about the weight issue. An engine crane will lift but obviously will not go up stairs or allow transition from grass up and over the raised door sill into the shop. The only means of getting it from the drive into the shop, at least so far as I can see, would be to break the machine down into smaller primary components that could be placed on a workshop trolly or whatever and potentially manhandled up and through the French doors. The final assembly in the shop could be completed with a engine crane.

Of this is the best option, can anyone give me some info about disassembling these mills. Would one be easier than the other? For the gh universal in particular, is it simply a matter of supporting the head with a hoist and then unbolting it from the back of the column?

Any suggestions would be very much appreciated.

Thread: New, old Myford Super 7 essentials
17/11/2020 19:15:30

Hi all

Thanks for the replies. Yes I have an oil gun from myford, which I purchased. Also have the original manual and spareys book.

It looks to me as there is a thin layer of oil around the spindle bearing. I'll check if I can see anything flowing out when I add more oil.

I'll need to give the back gear a run. Haven't used that yet.

With regard to location, I'm just outside Leeds.

I have lubed all points in the chart. Some take the oil no problem. Others don't seem as easy to accept it. That's what got me thinking about whether some might be blocked.

17/11/2020 12:32:52
Posted by ega on 17/11/2020 12:30:37:

Check that the oil ways are not choked with grease!

This is exactly the thing I am concerned about. I would like to do as much as I can without a complete disassembly, really.

17/11/2020 12:22:52

Hi all

I recently acquired a myford super 7. It runs very well and appears to have been kept in good condition. Of course its old, and there's crud in lots of nooks and crannies, and I am fairly certain that standard wear items will need replacing.

I do not think I am up to do a complete strip down and refurbishment, but would like to know what I could do in lieu of this to keep the machine in good stead. Things like replacing the wick feed oiler, remove, clean and reassemble the apron / Cross feed assembly, etc. One thing I am especially concerned about is ensuring that oil is getting where it needs to be. Any tips would be much appreciated

Thanks

Thread: Hemingway rear tool post plunger thread?
06/11/2020 18:40:55

Should have went with my gut. Thanks all.

06/11/2020 17:58:43

Hello everyone

I'm a beginner when it comes to interpreting technical drawings (and machining) so my apologies if this is a stupid question.

I am currently working on the hemingway kits rear tool post. The base casting has a hole for the plunger, and it appears to me that the bottom of the hole is M8 and threaded. I can't for the life of me figure out why it is threaded, or what is inserted into this thread. I presumed the plunger spring went into the bottom of the casting, and was kept in place by virtue of the fact that the casting sits on the cross feed table, but I am now wondering whether something is threaded into the hole to stop the spring dropping out if you remove the tool post form the table.

Any assistance would be greatly appreciated.

Thanks!

Thread: Anyone with a surface grinder near Leeds?
06/01/2020 19:45:32
Posted by Mike Poole on 06/01/2020 12:56:00:

Hand lapping can often be used rather than a surface grinder but it is much easier if you can access a grinder.

Mike

Mike, this is what I currently do - it's not so much getting it flat that is the issue, but parallel. Is there a method to hand lap (using a reference surface, perhaps) that would assist in getting things parallel? I seem to remember seeing something somewhere, but cannot recall the technique..

Cheers!

P.s. I hope my initial request didn't seem 'cheeky', I'm happy to pay for someone's time or be pointed to a commercial provider that does this kind of thing. I did not intend on taking advantage of someone's better equipt shop!

05/01/2020 17:44:32

Hi all

I'm a hobby machinist and often have small stainless components that require surface grinding. I can't afford / house a surface grinder, and am looking for someone near me that has one that would be willing to do a small job here and there for a nominal fee (or some beer!). If anyone has / knows someone who could help, preferably near Leeds, I would be very grateful to hear.

Thank you!

Jak

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