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Model Forum / General / Models / July 2009old colchester student toolpost question
hi all , its been an age since ive posted, but im back for advice! i anyone familliar with the 4 postion toolpost these use, not the quic change type! mine doesn't index, and has a nut on the top which need nipping up. the correct handle is on, the internal parts are there theres 2 indent plungers one is free but the one that is connected t the toolpost base doesn't move. is this wrong? i cant find a part drawing for this on the web and have never took one to bits.... also the t nut that tightens the toolpost clamped, should it be a tight fi in the slot, or would one with an 1/8 of an inch of play be acceptabl :eek: heres me hoping for some guidance! cheers ke -- willowkevi or, would anyone have any drawings of this type of toolpost(its not ver well illustrated in the mc handbook) or has anyone had this problem an taken any ppics when they mended it -- willowkevi willowkevin Wrote: > or, would anyone have any drawings of this type of toolpost(its not ver > well illustrated in the mc handbook) or has anyone had this problem an > taken any ppics when they mended it? Contact Colchester, they will fax or email drawings of components t you. They were very helpful when I needed some drawings of the toolpos on the Bantam. Pau -- paulwilliam thanks paul!, i'll give them a ring, but ive been meddling this aft, an seem to have sorted the indexing out!! but now ive a more simpl question :D how does the toolpost lock down ? mine has a hex nut that need to loosen and nip up with a spanner, now 25 odd years back as a apprentice i remember using a student an am sure the top part of th post had a half nound nut on top, also i notice a verticle hole runnin verticaly, parallel with the locking stud, could a pin hold this i place so when the locking lever is used to unlock and index the pos round the locking nut is loosened? oh and it looks like the t nut has been made(wrongly) as to allow th indexing to work ive (mis)used an old slip block as a shim..... for no anywa -- willowkevi hmmm colchester say they dont make that toolpost! pratts may have don tho... hey ho hu -- willowkevi There is a good diagram in the Student 1800 manual. If you haven't found a copy by Monday then let me have your real email and I'll send you a scan of that page.  SignatureRoland Craven Nr. Exeter, Devon, UK roland@petternut.co.uk www.petternut.co.uk oh dear, neither the 1800 or the old online student manual show m toolpost! after speaking to the service bloke at colchester, i believ my topslide(compound) is the type for the american market, and a wondering now if its an after market one,at least one from anothe lathe.... so the next question is to do with the underside of th toolpost! mine has a grid machined on the bottom and the threaded tub that runs from the bottom to top also is machined the same. has anyon seen this on a student before? there was a bloke in my town(york) who had an old student at home bu he died last year so that avenue is closed to me now unfortunatly, posted a similar question on the colchester user forum (yahoo groups but have had no answers there.... i'll fettle it tho! eventuall -- willowkevi On 15 July, 11:38, willowkevin <willowkevin.3vd...@rcgroups.com> wrote: > oh dear, neither the 1800 or the old online student manual show my > toolpost! after speaking to the service bloke at colchester, i believe [quoted text clipped - 4 lines] > that runs from the bottom to top also is machined the same. has anyone > seen this on a student before? I still have the 4-way block from my MkII student, that just has four indexing holes in the bottom. I really can't remember how the rest of it was arranged, I modified in in an irreversible manner to accept a Dickson post. If anyone can make good use of the block itself, it's available for collection FOC. Tim |
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