Here is a list of all the postings geoff walker 1 has made in our forums. Click on a thread name to jump to the thread.
|Thread: Myford Drummond headstock adjusting|
Sorry Anticlockwise geoff
I remember you, you used to post a lot of messages on the Drummond yahoo site.
They were always of real interest, where have you been?
You're dead right about the M, the spindle bore is way to small, a real pain in the ****.
I would also add that the rack feed is barmy, winding the hand wheel clockwise and the saddle moving towards the tailstock. How anybody thought that was a good idea is beyond me.
Do fit that second thrust bearing as recommended by Eugene, trust me it really is worth doing.
Get yourself back on that drum site asap.
|Thread: lathe books.|
I think we all have our favourite book, often I feel influenced by the type of lathe we own.
I have two M types, a Drummond and a Myford.
The amateurs workshop by Ian Bradley has many references to my machines and is therefore the book I have found most useful.
Having said that even if you have another type of lathe this is an excellent book and for me a serious challenger to Spareys Amateurs lathe.
best regards geoff
|Thread: 3 1/2" Gauge Discussion Group|
I noticed in your photos that you are still using an M type.
Is it the same one that featured in your M.E. articles in 1994?
I remember the articles, some really innovative repairs and modifications
Best regards geoff
|Thread: A & R Precision 'Dickson' Toolpost -- Screws Used|
You're right the tool holder is not gripped securely.
For it to grip securely the cam needs to be nearer to tdc
If you remove the shouldered locking bush and carefully file the inside face of the shoulder it will solve the problem. You will need to take equal amounts off both sides so check with a micrometer as you go along.
I found removing about 10 thou did the job.
This brings the 2 webs on the locking pin into a position either side of the flange on the adjusting screw and the cam to about 10-15 degrees off tdc.
You will find that the "feel" is now right with the cam "pinching" and feeling really secure.
Just make sure you don't remove too much material, check as you go along
Hope this helps best regards geoff
Thank you for your replies.
I did ring A&R, there view was that clamping pressure is uniform at all points on the eccentric. I’m not so sure, it currently locks a good 45 deg. from TDC, which as I’ve said just doesn’t feel right.
A small amount skimmed off the inside face of the shoulder on the spring loaded clamping bush will draw the bush in a little more and the eccentric will get closer to TDC.
I am still mulling it over a may give that a try. I do take your point about getting to close to TDC, that would be detrimental.
Some years ago I made GH Thomas spring loaded retracting tool holder and found that the eccentric locked the tool securely (and felt right) about 10 deg from TDC.
Thanks again geoff
I recently bought a Dickson tool post with 4 holders from A&R precision.
All seems well until I clamp the tool holder in the tool post.
The "problem" is that it clamps too soon, nowhere near TDC on the eccentric.
The holder locks in place but it just doesn't feel right, not really secure?
Is there an optimum clamping position for an eccentric. Should it be close to TDC?
I can see a solution to the "problem", if indeed it is a problem.
Any thoughts anyone
|Thread: NEW Original MYFORD Dickson type tool posts & holders|
Just bought a tool post, four holders, key etc from A and R. precision.
I am like all others commenting in this strand really pleased with the buy
At £90 for the lot it's a real bargain.
I told Darren he could sell 'em for England at that price and quality
Geoff Manchester uk
|Thread: Little Tich|
Hi again Pete,
Sorry, I should have said which 3d drawing program did you use for the little tich chassis.
Nice job, coming on well.
Can you tell me which drawing you have used for the 3d drawings.
Looks like it's just what I need
|Thread: wheel quartering|
many thanks for all your responses, ( the link is of real interest )
looks like I will go with the right hand side
I'm not far off quartering the wheels on my Rob Roy.
Whilst I'm ok on the actual process and understand the techniques required I can't get a definitive answer on which side of the locomotive should lead, drivers left or drivers right.
Does anyone know, does it matter?
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