Could someone ID this for me please

[Oompa LumpaParticipant @oompalumpa34302]

[Oompa LumpaParticipant @oompalumpa34302]

I bought this Quick Change Toolpost but the person I bought it from didn't know the manufacturer. I have seen this exact toolpost in MEW in some of the articles but the name wasn't mentioned so I would be grateful if someone could guide me here. I want to buy some toolholders.

And what purpose does the hole in the toolpost – in the top right corner in the picture – serve?

Thanks.

[NJHParticipant @njh]

Difficult to say who the maker is – just like golden retrievers, they all look similar! I think the hole is for a locating peg. I seem to remember the college machines had these and the idea was that a pin with a knurled head was inserted into the hole and the tool post rotated so that it lined up with a hole in the top slide. Pin pushed down and a positive, repeatable, position was achieved.

New toolholders ? – take one to a show and try against those on sale??

Cheers

Norman

[John HaineParticipant @johnhaine32865]

It's a Myford – Dickson type. It is mounted 90 degrees out, the hole should be bottom right so the tool holder fitted would be in the boring bar position at the back. I think the hole must be for a location dowel should you want to use one but it isn't necessary. Manufacture these days is a bit generic, I bought mine new in an unmarked box from G&M Tools. I think you can get holders from Kirjeng and maybe RDG Tools? They are very good.

[Johnboy25Participant @johnboy25]

Hi… If the tool holders are about 50mm long by 35mm approx (Myford size) and look like their quality items – They may made by aandrprecisionltd (eBay seller name) They don't have any for sale at the moment but may be worth a try. They are a copy of the Dickson quick change tool post & holders.

Click on for more dimensional info.  http://www.lathes.co.uk/latheparts/page13.html

Regards John

Edited By Johnboy25 on 27/11/2013 21:52:56

[Swarf, Mostly!Participant @swarfmostly]

Hi there,

This type of toolpost comes in several different sizes, each with its own designation letter/number identity.

J&L/MSC used to give a table of dimensions in their big paper catalogue, I think it was in the early pages of the 'tool-holding' section.

Best regards,

Swarf, Mostly!

[LathejackParticipant @lathejack]

Hello Oompa Lumpa

The toolpost you have seems to be a copy of the Dickson type quick change toolpost, if not a genuine Dickson. These are sold by, amongst others, Chronos, RDG and Myford. These come in different sizes, as well as the tool holders. the one you have might be the same size used on Myford lathes if your lathe is a Chester DB7 or 8, but measure before ordering.

The hole in the corner is for fitting a long plunger that locates in a hole drilled in the topslide so that the toolpost can be locked square to the topslide if required. Some of them have a hole in each corner. The plunger has a threaded hole in the top, or similar, so it can be pulled out to allow the toolpost to be swivelled round if needed.

 The price as well as the quality varies between suppliers.

Regards.

 

Edited By Lathejack on 27/11/2013 21:53:06

[Oompa LumpaParticipant @oompalumpa34302]

Gentlemen, thank you all very much for all of your help. The chap was a bit of a Myford fan so that all makes perfect sense.
And well spotted, my lathe is indeed a Chester DB7

graham

[HacksawParticipant @hacksaw]

Hi, newbie here (long time lurker though)I'm a farrier /blacksmith ,and I've got a Smart&Brown M. Toolpost was a pain so I modified a secondhand Dixon QC toolpost to suit by milling a good bit from the lower mounting face, to get it low enough . It kinda works !

Anyway, amongst the tool holders is one with a Morse 1 hole… What is it used for ?? Must take ages to set it up for boring , when the tailstock is already centred, ready and waiting for the same job? Ta !

[I.M. OUTAHEREParticipant @i-m-outahere]

Hi,

The only issue I had when I bought 2 new holders for my tool post was that the "T" slot for the locking mechanism was a few thou different and the holder would not go on but a quick massage with a file or a stone in a die grinder fixed that I also had a dig in when parting off once and the TEE bolt that locks the holder in shattered as it was glass hard but the supplier I bought it from just exchanged the whole unit without question .

Also , when fitting different holder make sure the mating surfaces are clean as a small bit of swarf can cause the holder to cock to one side and this can change your tool height or cause it to come loose .

I plugged that hole up as I found that it allowed swarf to work its way in between the tool post and compound slide when I loosened it to adjust tool angles etc .

Ian

[KWILParticipant @kwil]

The last batch of "Genuine" Myford QC were made for "OLD" Myford by A&R Precision Limited, who still manufacture them for sale. They certainly fit properly.

[Mick Harris 1Participant @mickharris1]

It looks to me as a Chinese copy a friend of mine has 1 on his Colchester & if you get the wrong tool holders they don`t fit correctly

Mick

[jonathan heppelParticipant @jonathanheppel43280]

Posted by noel coster on 27/11/2013 22:54:57:

Hi, newbie here (long time lurker though)I'm a farrier /blacksmith ,and I've got a Smart&Brown M. Toolpost was a pain so I modified a secondhand Dixon QC toolpost to suit by milling a good bit from the lower mounting face, to get it low enough . It kinda works !

Anyway, amongst the tool holders is one with a Morse 1 hole… What is it used for ?? Must take ages to set it up for boring , when the tailstock is already centred, ready and waiting for the same job? Ta !

I've wondered about that myself. I've seen cross slide mounting morse attachments on larger machines to power drill (not bore btw) for production, so can only assume the the toolholder is for the same job. The only other use I can think of is for holding small boring bars in arbors or collets. Can anyone else enlighten us?

[mechman48Participant @mechman48]

As with other comments; it is either a Myford or one of its clones, I have one (Bison) fitted to my Warco 250V-F & the hole is for a anti rotation / locating pin which I have fitted, by the way yours should be rotated 90* so you have the facility to have a boring bar at the front of your saddle. I have drilled another location hole in the top slide so that I can place my post as yours is to allow extra OD machining capability.

George

[BazyleParticipant @bazyle]

When purchasing new holders don't rely on "its a myford size" or equivalent. There have been various versions and marketing tricks over the years depending on whether they want they want their small one looking like a cheap big one or make you think you need the bigger more expensive one for your lathe.
So measure the centres of the Vs and get the supplier to confirm. They usually like to give a block size based on theri hat size units of something. I had a 'Boxford' one from an ME advertiser ten years ago but it now takes 'Myford' size holders according to sme rival sources.

Reminds me to put holders on my Sandown list. – that gives me a chance to measure the actual item before purchase.

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