Vertex HV6 – Corrected Division Table plus universal dividing spreadsheet

[Kathryn Truscott 1Participant @kathryntruscott1]

Hi Guys,

There's an error in Howard's Chart on the 94 tooth entry. The plate should be C-47, not 49.

Not sure how to make this available on here and the usual procedures don't seem to work, but I have copies for anyone that needs them.

Cheers,

[Neil WyattModerator @neilwyatt]

Thanks Kathryn,

Seems reasonable as 94 is twice 47!

If anyone else can confirm this just to be sure, I can amend the spreadsheet. Howard?

Neil

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Kathryn Truscott 1 on 04/11/2016 09:19:39:

Hi Guys,

There's an error in Howard's Chart on the 94 tooth entry. The plate should be C-47, not 49.

.

Kathryn

From first principles …

90:1 worm ratio

94 divisions requires 45 step increments on a 47 hole plate

MichaelG.

[Howard LewisParticipant @howardlewis46836]

Sackcloth and ashes again! Obviously, I goofed with a formula somewhere in my copy and paste routines, either that of fat finger syndrome.

Yes, please amend the spreadsheet

Howard

[Neil WyattModerator @neilwyatt]

Thanks Howard.

Actually the spreadsheet is correct! It's a typo in transposing to the pdf.

I don't have the document used to generate the pdf version and I don't think I can edit  it without spoiling the formatting.

Could you email me a corrected pdf, please Howard?

Neil

Edited By Neil Wyatt on 04/11/2016 14:17:02

[SillyOldDufferModerator @sillyoldduffer]

Arggh! I find this table so useful that last Monday I laminated my copy to keep it clean.

They say no good deed goes unpunished. Now I can't pencil in a correction…

Dave

[Howard LewisParticipant @howardlewis46836]

Hi Neil

EXCEL Spreadsheet and my original revised HV6 Chart (WORD) sent as E mail attachments, (once I'd found them!)

Howard

[Kathryn Truscott 1Participant @kathryntruscott1]

I have forwarded a copy of the revised chart to my vendor in NZ from whom I bought my RT. He has intimated that he will send it out to customers in future sales.
Happily, unlike Dave, I had not laminated mine yet! Laminating sure does help with the oily fingerprints in the workshop, not to mention pinning things to the wall so that they don't get lost/ scrunched up/dropped on the floor..
Neil…. to edit a pdf of that kind you need Adobe Acrobat… there's a small fee (surprise, surprise!), but it's very handy and easy to use and doesn't affect the formatting at all.

xo,

[Neil WyattModerator @neilwyatt]

Just looked  –  Acrobat is £11.42 a month, that's nearly twice what I pay for Microsoft Office 365!

£20 a month on 'pay as you go'!

Edited By Neil Wyatt on 05/11/2016 22:08:55

[Neil WyattModerator @neilwyatt]

OK, corrected and created a new PDF, the link in the article now points at the new version.

Neil

[Kathryn Truscott 1Participant @kathryntruscott1]

Good Heavens Neil, I din't pay anything close to that in NZ… just a few dollars a quarter….. I wonder why the discrepancy? Perhaps they take pity on us poor people down here in the South Pacific…

[SillyOldDufferModerator @sillyoldduffer]

Many thanks for the update.

If – like me – you can't remember where you got it from in the first place, it's HERE.

Dave

[Neil WyattModerator @neilwyatt]

Or click on the article link at tew top of this thread

N.

[Tony ZuiderwykParticipant @tonyzuiderwyk55115]

There I was reading MEW254 'an emergency repair' and there lurking on the bottom of page 23 – shock, horror, the Vertex HV6 table has errors! I've had my HV6 for many years and mainly use it for cutting gears on the mill. Obviously I have been lucky and haven't needed one of the teeth counts with an error. Cutting gears like this is laborious and an error is costly in time and rework effort. So, let me thank everyone who has contributed to rectifying this. I have dutifully downloaded the PDF and Excel files.

The old saying 'measure twice, cut once' applies. It pays to double check the calculations. It pays to read MEW too!

I will check the OEM table on my HV8 now.

Thanks again, Tony

[larry phelan 1Participant @larryphelan1]

Yes Howard,

I have found so many "Errors" with my 6" table that I no longer pay any heed to the "so-called-chart ",I tend to work it out instead. I dont know why they bother to supply these charts when they are not accurate,there is no excuse for it in this day and age. They are making these things long enough,at this stage to get it right.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Neil Wyatt on 06/11/2016 12:20:18:

Or click on the article link at tew top of this thread

.

A splendid example of being "hidden in plain sight"

MichaelG.

[Author]

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