Tramming from a different prospective (solid column mini mill)

Gallery, Projects and General > How do I??

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greenie:

--- Quote from: Stilldrillin on January 13, 2015, 06:05:15 PM ---
Ah! That changes things...... :scratch:

Drinks can alloy, is your friend........ :thumbup:

Frankly, I would expect it to be plenty close enough, now, for your needs.

I would say. Use it, enjoy it. Then see where you can improve things, as your experience and confidence grows.

David D

--- End quote ---
:clap: :clap: :clap:

How do you know if it's out of tram, if you haven't even used it ?

Better start to do a few things with it, and if it's way out of tram, then, and only then, start to muck about with it.

As David has stated, it will be about as 'close as #uck is to swearing' straight from the box.

Think you have read far too much, and started to believe all the stuff that's spread around on the web by a lot of armchair experts, so why not use it and find out, before mucking around with something that might be real close anyway.

regards Greenie

John Rudd:

--- Quote from: greenie on January 13, 2015, 08:21:30 PM ---
--- Quote from: Stilldrillin on January 13, 2015, 06:05:15 PM ---
Ah! That changes things...... :scratch:

Drinks can alloy, is your friend........ :thumbup:

Frankly, I would expect it to be plenty close enough, now, for your needs.

David D

--- End quote ---
:clap: :clap: :clap:

How do you know if it's out of tram, if you haven't even used it ?

As David has stated, it will be about as 'close as #uck is to swearing' straight from the box.

Think you have read far too much, and started to believe all the stuff that's spread around on the web by a lot of armchair experts, so why not use it and find out, before mucking around with something that might be real close anyway.

regards Greenie

--- End quote ---

He's right too.....I bought a Chester Eagle 30 mill....round solid column....haven't even touched anything on it since the day I bought it many years ago.....I never even checked the tram on it coz when it cuts it's near enough for farm work, as they say...
So, try it, see what the finish is like then decide on what to do.....

Stilldrillin:
Come to think about it..........

During 34 years of making a living, on grown up machines. I never trammed a mill. :scratch:

Until I set up my mini mill, several years after retirement......

I never check it's alignment. As it never gives me cause to........ :thumbup:

David D

RussellT:
If you set it up so the column is trammed to the workpiece then the effect is not the same. The objective of tramming is to set it up so that the column is square to the slideway. The top of the table is convenient to use.

If you shimmed the vice, the workpiece would be square to the column, but it might change height as you moved it left and right.

However as others have said it's worth trying it first, especially as it's not supposed to need adjusting.

Russell

lordedmond:
To the OP

what are your requirements for truth in the workpiece ?

if you require 0.001 mm then I am afraid you have bought the wrong machine you need one of these but a big wallet to buy and equip
http://www.lathes.co.uk/sixis/

these are as been said a cheaper flexible mill but do try it, as is it may well be within your tolerance needs if its for hobby use remember we are not making parts for NASA

sorry for the rant but I am afraid you cannot make a silk purse from a sows ear

yes I do have a SX3 mill and it performs to my required level but I have done some work on the spindle but the rest is as supplied mine is a tilt head so it needs the head tramming as I move it for some jobs but the the column is within 0.01 over 200 mm both ways.

please do not confuse column alignment and quill alignment they are two distinct things and are adjusted in a totally different way , also they are tested for truth differently as well

Stuart

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