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Member postings for Bob Astill

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

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Thread: Dickson tool post
25/08/2021 10:09:00

Thank you Michael i will have a read of that later.

Bob

Posted by Michael Gilligan on 25/08/2021 09:07:01:

I don’t think I have ever seen a genuine Dickson which did not all fit together nicely, Bob

… But hopefully this will help: **LINK**

https://worldwide.espacenet.com/patent/search?q=pn%3DGB1127018A

MichaelG.

.

Edit: __ Patent is downloadable in pdf … just click the little column of three dots.

Edited By Michael Gilligan on 25/08/2021 09:08:53

25/08/2021 08:47:40

I have a Dickson quick change tool post on my Colchester Master it has 3 sides you can fit holders on they are all different when you put a holder in one side the holder will tighten up no issues another it wont tighten up at all the 3rd is in the middle it is also different with different holders i have 20 some fit all 3 ? my question is can the post be adjusted ? or repaired? anyone have a drawing or know where there is a video on how it comes apart?

Many thanks

Bob

Thread: Tom Senior M1 Verticle head
18/06/2021 08:31:43
Posted by old mart on 17/06/2021 18:13:40:

It is common for grease to be used, unless the seals are very good as it is less likely to leak out everywhere. If you use grease, make sure there is at least 50% air space otherwise the head will overheat. A lithium based grease would be ok, don't use moly grease with ball or roller races.

Thank you for the reply it has all new bearings and seals but i will use grease.

Bob

17/06/2021 12:15:21

Morning i have fianly got all the new bearings, seals and parts made to rebuild this head can someone tell me is it filled with oil or are the bearings and gears packed with grease?

Thanks Bob

20/04/2021 08:15:22
Posted by old mart on 17/04/2021 19:53:13:

TS use BA for the smaller fittings, so you could try a 2BA or 4BA screw in the holes.

Edited By old mart on 17/04/2021 19:53:48

Thats great thank you i thingk i will take the casting to the bolt place that way i know it will be right.

Bob

17/04/2021 15:25:12

right i have all the parts to rebuild this now except the bolts to hold the 3 Caps on 2 of them have a counter bore and one is countersunk can anyone tel me the bolt sizes and threads please as there was non with it.

Thank you all Bob

Thread: Dickson holder storage
24/02/2021 08:54:16

This is how i did my Colchester Master i have similar for my Harrison M300 just smaller

colchester.jpg

colchester 1.jpg

Thread: Jones and Shipman 540 Dripping
05/02/2021 08:39:54
Posted by HOWARDT on 19/03/2019 21:19:40:

Use to heat black pudding in boiling water, now I cover in film and microwave, as said never fry it goes hard. Dripping on white bread no salt, pork is favourite. Lard on toast, maybe a little salt. Treats of bygone era, kids don’t know what they are missing.

I used to love bread and dripping as a kid with salt on probably why i have had a tripple heart bypass and a cardiac defrillator fitted now

Bob

Thread: Tom Senior M1 Verticle head
05/02/2021 08:34:46

Thank you all for the replies the seal cam be seen in the end cap on the far left of the first picture on my original post

Bob

04/02/2021 13:28:16
Thank you to StevieGTR and Old Mart I seem to be getting there I just need to find the seal size and make the tube that I have the drawing for now
Bob

04/02/2021 13:25:13
Posted by old mart on 03/02/2021 17:03:05:

I don't see any shims on the shaft, or anything marked under the end covers.

It doesn't make sense exactly, since the central part seems like it should be clamped tightly using the missing tube and the outer races shimmed for the preload. Your spindle is different from the drawing, the gear is offset from the centre. I think the lower race outer is held tightly and the upper one moved to give the preload.

Edited By old mart on 03/02/2021 17:07:36

Edited By old mart on 03/02/2021 17:27:09

Thanks for the reply if you look at the 2nd picture that I got of the net it says shim? but I do not have one in the bag

03/02/2021 14:19:07

a while back i bought a verticle head in bits (told all there)

used head.jpg

i did find a picture from 2010

tom senior vertical head shaft.jpg

i think i am missing a sleeve between the gear and the bearing but i can knock one up.

does anyone have an exploded view or a picture of where the bearings and shims go as its a bag of bits?

Thread: Jones and Shipman 540 Dripping
20/01/2021 08:55:52

got it all back together i have a problem where the bed does not seem to speed up when i move the speed leaver and the front lever that starts it going and to stop it seems to be under preasure like it something stoping it coming up to stop the maching if you hold it up the bed parks on the right hand stroke but if you let go it starts to move on its own?any advice appriciated please.

Bob

08/01/2021 14:18:42

img_20210108_140525_resized_20210108_020643112.jpgimg_20210108_140515_1_resized_20210108_020643303.jpgimg_20210108_140509_resized_20210108_020643481.jpgI have now painted the tank and a few other bits also got it stripped and my son is cleaning everything and poking out all the gallerys also added some pictures for David who has been a massive help with information this i am gratful forimg_20210108_140551_resized_20210108_020642904.jpg

08/01/2021 10:33:01

Right next update is when i toog the grinder to the tank to clean it up loads of pin holes appeared so i cut the bootom off the tank and replaced it with some new 2mm sheet left it overnight with Kerosean in it not damp spots or drips in the morning soi have just painted it with machinery enamel as this seems to be what was in it from new just have to take the bed off now and clean out the gallerys and slides.

Bob

07/01/2021 12:06:33

Latest update i have just got around to sorting the J&S out beed delayed with work and health issues but i have removed the pump and motor emptied the oil tank and cleaned it all the tank is very rusty in places and with the cleaning has shown up a few pin holes that i will weld a plate over. my main question is does anyone know of a paint that i can paint the inside of the tank with like an epoxy or similar that will be ok with the hydroolic oil and help as a sealer?

Thanks Bob

Thread: Lathe Insert holders
05/12/2020 19:00:42
Posted by DiogenesII on 05/12/2020 17:07:39:

SCBCR 06, I think.. I got mine from JBTools here;

JB Tools SCBCR 06

..The Earlier thread is here;

Diamond shaped tool...

Perfect thank you just what I was looking for.

Bob

Edited By DiogenesII on 05/12/2020 17:11:17

05/12/2020 16:56:28

I have a set off small insert holders for my littlel lathe they use cmt060204HM inserts I seem to remember seeing a post about another holder that uses the unused 2 sides of the insert does anyone know what the holder number is please.

Bob

Thread: Tom Senior
20/11/2020 11:27:57

Just a quick update i found time today to sort the Tom out i relised i could pull he shaf out without undoing the 2 lock nut so i did as sugested and removed the locking bolts and i took 0.3mm off each end of the brass shoes where they meet refitted everything and it is now rock solid and does not move when cutting so thank you for all the comments i now have a fully working Tom Senior

Bob

28/10/2020 09:15:39
Posted by Brian Wood on 28/10/2020 08:55:12:

Hello Bob,

Thank you for the photo, it makes all the difference to understanding what the problem is.

The overarm, to give it it's proper name, is clamped by two pinch bolts, the other is behind the motor at the rear of the body that close shaped blocks onto the bar when tightened.

I suspect the gap between the two clamps is non existent and they close on each other. To put that right, slacken the two bolts, pull out the whole bar and then lift the clamps from the bores they live in. Machine off a little, only a little, of the face where the scallops face each other to increase the gap again, refit and insert the bar again. They should now clamp with no further difficulty.

Lathe tailstocks often use the same method to grip the barrel rather than squeeze a slot.

I hope that helps you

Regards Brian

Thank you for this Brian i will take a look at that.

Bob

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