Rotating Table

[Ian SugdenParticipant @iansugden63787]

Anyone know the correct procedure for mounting the indexing disks to the rotary table made by Soba?
This is what I got
**LINK**

The instructions make no mention of how to do it

I have tryed to undo the bolt from the center off the hand wheel
This one

I have also removed this grub screw

and it still wont budge, I have bent one of my allen keys trying to undo this bolt.

Dont know if its a lesft hand thread
Need help please

Ian

[Ian SugdenParticipant @iansugden63787]

Removing hand wheel

[John Stevenson 1Participant @johnstevenson1]

No simple allen screw, RH thread, you undo the screw and the handle pulls off a keyed shaft.

Try whacking it on the end then undo it. They are not normally a problem to get off.

[jason udallParticipant @jasonudall57142]

Sorry .don't know that particular table..

1 is there another grubscrew hiding down the grub screw hole?…. has been known

2.maybe try locking table and turing hand wheel to unlock it from allen bolt in center of wheel..like slackening bolt by turning nut..

handle maybe keyed onto shaft or on taper..so 2 might have no chance…

If torque won't do it try shock or heat…I suggest freezer spray…then boiling water..trying to keep rest of table dry…

best of luck.

Jason

[John Stevenson 1Participant @johnstevenson1]

The grub screw only holds the dial, nothing to do with the handle. handle is keyed onto the shaft, no taper involved.

I have done loads of these when converting to CNC but Ian seems to just have a tight bugger.

[JasonBModerator @jasonb]

Loosen the screw in the middle of the handle say ome turn and then give it a tap with a copper hammer or similar to break the taper free, Mine was a bit tight the first time I took it off.

The dial on the side is also just a standard grun screw that lets you zero the scale

[Russell EberhardtParticipant @russelleberhardt48058]

It's not on a taper, it's a parallel shaft and key. If it won't budge when you remove the central screw use a bearing puller.

Russell.

[John Stevenson 1Participant @johnstevenson1]

Read the OP.

He's having trouble undoing the screw, NOT removing the wheel.

[Bob PerkinsParticipant @bobperkins67044]

Hi ian

my manual instructs you to remove the centre retaining screw and washers on the handle. I can email you a copy of the manual if you don't have one. My manual came via this forum as my table didn't come with one.

regards

Bob..

[KWILParticipant @kwil]

I notuced that when mine was first taken apart some time ago, the "blacking" on both the bolt and washer was quite thick and tacky, but no impediment to being undone. Long reach allen key had more than sufficient leverage. Under the standard grub screw on the dial has a copper disc under it to minimise damage to the shaft under the dial, not relevant to the dividing plate issue.

Grizzly G1760 Manual for Dividing Plates will supply all the details.

[Michael GilliganParticipant @michaelgilligan61133]

Ian,

Further to the comments by JohnS and KWIL …

If all else fails; it may be worth locally heating the screw with something like a Weller Soldering Gun.

… Historical link included for general interest.

MichaelG.

[Michael GilliganParticipant @michaelgilligan61133]

Ian,

When you have overcome the present difficulty [and if you are so-inclined] …

This looks a neat way of attaching a Stepper Motor

MichaelG.

[MichaelRParticipant @michaelr]

Have a look at this LINK it won't help with the screw problem but it may give you a insight of how the indexing plates fit.

Stick

[Ian SugdenParticipant @iansugden63787]

Thanks for all your replys, 4 swift tap with the hammer and the bolt came lose by allen keys own weight.

Now know how Thor feels, the power off the hammer

Ian

[Mike PooleParticipant @mikepoole82104]

If you cannot fix it with a hammer you have an electrical problem.

[WearyParticipant @weary]

Has anyone removed, or does anyone know how to remove, the MT2 bush in the center of the (similar) Vertex offering?

Thus far, 'gentle aggression' (i.e. hitting a drift) from the rear of the rotary table, without any dismantling has failed to move it. A search of t'internet hasn't turned up anything useful, but maybe my search terms are not ideal.

Phil.

Edited By Weary on 15/02/2013 15:30:20

[KWILParticipant @kwil]

Phil,

Yes I have and it took a fair amount of pressure, you have to make sure that the face of the table is firmly bedded onto something unyielding but with a hole large enough to clear the bush.. You are trying to accelerate the bush but you do not want to be moving the table as well. If that does not work then you must arrange for a press to push it out.

You could also make an extractor with a threaded round block behind the insert and draw it through the table and a block with plate on top, on the top of the table with a larger hole than the bush, with the aid of a long bolt or threaded rod.

Edited By KWIL on 15/02/2013 16:58:21

[Ian S CParticipant @iansc]

If at first you don't succede, get a bigger hammer! Ian S C

[Sub MandrelParticipant @submandrel]

MIchael, in the days of plug-in valves a good thump was often effecfive in making a recalictrant TV some back to life

Neil

[BazyleParticipant @bazyle]

I like the idea of the weller. I was going to suggest a red hot allen key.

For future reference what was it you hit? the key, the bolt, or the handle?

[Ian SugdenParticipant @iansugden63787]

Bazillions I hit the bolt, I think it nocked the hand wheel in ever so slightly and put the Allen key in and the weight of the key turned the bolt 1/4 of a turn

[Ian S CParticipant @iansc]

Neil, my dad, a war time Radar Mechanic with the RNZAF in UK, and after the war a radio technition with the NZ Broadcasting Service, had as his first method of rectifying a fault, HIT IT hard, it seemed to work on the old valve radio gear. Ian S C

[Sub MandrelParticipant @submandrel]

Simliar pedigree to my paternal grandfather. Radio/sonar operator on K-class and a number of battleships, teaching radar at Cranfield then selling/repairing TVs as a civvy. Dad was in the RE then went into his dad's business.

With HT and plated contacts a bit of vibration was probably enough to re-make contact in a valveholder.

Not all faults were as simple. My dad used to get alled round by an old lady who rented a TV to re-wire it. She used to put it in the (empty) bath in case Ted Heath tried to climb out and molest her.

He got fed up of this and had to retereat backwards from her flat using the TV to fend her off as she went after it with an axe. If I recall correctly he escaped with some assistance from the postie.

Just goes to show you can't trust politicians

Neil

[Mike PooleParticipant @mikepoole82104]

I have found that electronic equipment can often be "repaired" by unplugging and simply replugging circuit boards and multi pin plugs. I found that on many occasions a diagnosis would be made and a board exchanged for a spare but when the faulty board was tested by reinstalling it was Ok. Despite having gold plated connections atmospheric pollution is able to force the connections apart creating a fault, the removal and replacement wipes the connection clean and normal service is restored. A soft pencil eraser is excellent for cleaning edge connectors. Pollution also causes problems with relays and contactors carrying low voltage low current signals. The uninitiated are amazed when a thump on a control panel chassis fixes a fault, this is usually followed by replacement at the next maintenance opportunity.

Mike

[Sub MandrelParticipant @submandrel]

I used brake and clutch cleaner to do a fine job on the noisy volume pots of a guitar the other day.

Neil

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