Author Topic: Chester 626 mill CNC Conversion  (Read 213067 times)

Offline doubleboost

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Re: Chester 626 mill CNC Conversion
« Reply #425 on: September 04, 2012, 03:55:20 PM »
Hi
Rob
The belt tensioner looks to be up to standard
I like the blue / black finish  :drool: :drool: :drool:
John

Offline Darren

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Re: Chester 626 mill CNC Conversion
« Reply #426 on: September 04, 2012, 03:59:38 PM »
I go away for a couple of years ... plodding along in my own way in the dark ... lol ... gained bags of confidence ....

Then I find this thread .... !! Makes me feel like I've learn't knowt .....  :nrocks:


Hi Rob ....  :thumbup:
You will find it a distinct help… if you know and look as if you know what you are doing. (IRS training manual)

Offline krv3000

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Re: Chester 626 mill CNC Conversion
« Reply #427 on: September 04, 2012, 04:00:23 PM »
well dun rob its cuming a long nice

Offline AdeV

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Re: Chester 626 mill CNC Conversion
« Reply #428 on: September 04, 2012, 04:28:36 PM »

I PM you if i need some rubber sheet , see how i get on with steel way covers  :palm:


A man can never have enough rubber sheet  :scratch:  :palm:  :lol:

Steel way covers look cool, I'll give you that. Will you be making them out of chrome as usual?  :wack:
Cheers!
Ade.
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Or: Zhengzhou, China. An even longer way from anywhere...
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Offline micktoon

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Re: Chester 626 mill CNC Conversion
« Reply #429 on: September 04, 2012, 05:48:42 PM »
 Hi Rob , good to see you back on the project posting , I thought the big bad wolf had got you :bugeye:. As John says the Blue/black finish looks good , just like factory part  :clap: :thumbup:
  cheers Mick.

Rob.Wilson

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Re: Chester 626 mill CNC Conversion
« Reply #430 on: September 06, 2012, 10:47:41 AM »
cheers Lads  :beer:


 :lol: :lol: Ade ,,,,,,,,,nope stainless  :)


Well thought all i had to do this morning was poke a few holes in the Knee to fix all the parts i have made , Z and Y bearing blocks not a problem then came the Z motor mount  :bang: this face was not square nor flat  :palm: .




**** no's what they used to machine this face  :scratch:  , So i ended up having to re machine this face .

wile on i cleaned up the jolly hockey stick hole too. :coffee:


Must admit the machining and build quality of my Chester 626 mill is utter crap  :( , on a side note , any one with one of these machines dont even think about ordering spares ,as i will lay odds they will not fit your machine .

With that done i could now fit the Z motor mount .



Must order  a box of shorter M8 socket cap screws .


Rob

Offline NickG

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Re: Chester 626 mill CNC Conversion
« Reply #431 on: September 06, 2012, 12:40:42 PM »
I've always fancied a 626 Rob, until this thread! I should know better as I am always comparing my Harrison lathe to the cheap chinese mill I have. Guess it's why they're comparatively cheap. Are there any decent makes you can buy new without breaking the bank?

Nick
Location: County Durham (North East England)

Rob.Wilson

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Re: Chester 626 mill CNC Conversion
« Reply #432 on: September 06, 2012, 01:18:46 PM »
HI Nick

You get what you pay for  sort of , basically in my opinion you get a loosely assembled kit of roughly machined castings with cheap chat fasteners ,bearings and mystery metal etc      , They probably make them as cheap as possible so the retailer can make bigger profits.


Y Lead screw nut  lol  ,, Looks like it was cast from old what nots .



Lead screws   :lol: :lol: :lol:  all three from my machine .




QUALITY MMMMMMMMMMM 

**** me they cant even get a pad on a casting in the correct place .ITS OFF TO ONE SIDE  :Doh:


How many 626 Z Nuts have given way , sending the table shooting to the ground . these imported machines are  cheap for a reason , because there crap . Just my opinion of my machine .


Rob


 

Rob.Wilson

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Re: Chester 626 mill CNC Conversion
« Reply #433 on: September 08, 2012, 11:32:43 AM »
HI Lads

A little more do today , nothing very exciting but its another job off the list , fabricated the belt/pulley covers from some 1.2mm sheet steel i had to hand :zap:

and after a quick clean up with a flap disc .



Rob

Online John Rudd

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Re: Chester 626 mill CNC Conversion
« Reply #434 on: September 08, 2012, 01:08:45 PM »
Excellent job Rob,... :coffee:

As usual... :bow:
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Offline saw

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Re: Chester 626 mill CNC Conversion
« Reply #435 on: September 08, 2012, 01:53:42 PM »
You are doing great Rob  :clap: :clap:
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Offline ibuildstuff4u

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Re: Chester 626 mill CNC Conversion
« Reply #436 on: September 08, 2012, 02:05:07 PM »
Is this a similar machine as compared to the ones Grizzly sells such as this one?
http://www.grizzly.com/products/Vertical-Mill-with-Power-Feed/G0729

I'm just wondering if the build quality is the same on these machines.

Thanks Dale P.



*fixed the link
« Last Edit: September 08, 2012, 05:45:53 PM by Brass_Machine »

Offline 9fingers

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Re: Chester 626 mill CNC Conversion
« Reply #437 on: September 08, 2012, 02:18:27 PM »
Yes these are all generic Chaiwanese mills. As I understand it there are a number of foundries working to similar patterns and a number of engineering shops making mills. Various vendors then have them badged and 'extras' fitted to their spec.

Some vendors impose high levels of QC onto the suppliers and in UK there was one supplier, Myford, who reputedly stripped down the machines and checked them over. However they have now gone bust :bang:

I don't know the North American market in as much detail but I've not thought of Grizzly as a quality brand but much as Warco and Chester are in UK.

hth

Bob

Offline micktoon

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Re: Chester 626 mill CNC Conversion
« Reply #438 on: September 08, 2012, 05:21:26 PM »
    Hi Rob , looks like mighty fine tig welding there  :bow: :bow: :thumbup:, on the first shot I thought that was a solid block you were using to clamp the bits of sheet to keep your corners square lol, are you plating them  :drool: :drool: or painting ?
  Cheers Mick

Offline DaveH

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Re: Chester 626 mill CNC Conversion
« Reply #439 on: September 08, 2012, 05:40:54 PM »
Rob,
They do look nice  :thumbup: :clap:
 :beer:
DaveH
(Ex Leicester, Thurmaston, Ashby De La Zouch.)

Offline doubleboost

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Re: Chester 626 mill CNC Conversion
« Reply #440 on: September 08, 2012, 06:07:48 PM »
Cracking job as usuall  :bow: :bow:

I bet you could make a canny" backy tin "  :lol: :lol: :lol: :lol:

John

Rob.Wilson

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Re: Chester 626 mill CNC Conversion
« Reply #441 on: September 08, 2012, 06:19:37 PM »
thanks lads  :beer:

I would have to agree with Bob , his Myford mill will be built to a far higher standard , John Doubleboost has a chester 626 and parts from my mill will not fit his , its as if they have built each and every machine as a one off , John has had to spend time stripping and fettling his machine .

Personally i would not touch another imported machine from the far east  , I would rather spend my time repairing an old quality  used machine than a brand new out of the box imported pile of crap .  :coffee:

    Hi Rob , looks like mighty fine tig welding there  :bow: :bow: :thumbup:, on the first shot I thought that was a solid block you were using to clamp the bits of sheet to keep your corners square lol, are you plating them  :drool: :drool: or painting ?
  Cheers Mick

cheers Mick  :beer:  ,,,, :lol: :lol: :lol:    probably paint  :dremel:





Rob



 

Offline krv3000

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Re: Chester 626 mill CNC Conversion
« Reply #442 on: September 09, 2012, 06:09:55 PM »
lol giv over rob you love the chalinge

Offline Mayhem

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Re: Chester 626 mill CNC Conversion
« Reply #443 on: September 10, 2012, 07:59:24 AM »
...Personally i would not touch another imported machine from the far east  , I would rather spend my time repairing an old quality  used machine than a brand new out of the box imported pile of crap .  :coffee:...

Depends on your location I guess.  The Japanese probably curse the Chinese machines from the West!

Either way, location doesn't change the quality job you are doing Rob  :thumbup:

Rob.Wilson

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Re: Chester 626 mill CNC Conversion
« Reply #444 on: October 16, 2012, 02:17:16 PM »
Hi Lads ,  well the machine base has been bugging me , poor quality ,made from bean tins lol , too low , no provision for coolant and not wanting to have a separate enclosure for the CNC controller and then having to fined some were to stick the computer  , i decided to build a new base with a coolant tank built in , three separate compartments , one for the computer down the right hand side , with access to the rear of the computer , spindle switch gear in the front left compartment and the cnc gubbins   with be in the left hand side .




All fabricated from 3mm and 4mm plate i had salvaged from here and there , so material cost was about zero .  :med:

I still have to cut a hole in the top of the tray for the coolant pump and make the doors , dose any one no of a UK source for  quarter turn latches ?
Rob   

Offline 9fingers

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Re: Chester 626 mill CNC Conversion
« Reply #445 on: October 16, 2012, 02:26:46 PM »
Cracking job as usual Rob.

Are these latched any good? http://uk.rs-online.com/web/p/internal-door-latches/3478692/

Chrome plated to match your other machined parts :)

Bob

Rob.Wilson

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Re: Chester 626 mill CNC Conversion
« Reply #446 on: October 16, 2012, 02:34:18 PM »
Cheers Bob ,,, thats the sort of thing ,but i should have said the type that uses a square /triangular /tee shaped key , the type fitted to steel enclosure boxes .

Rob

Edit  , like the ones too the left in the photo .

Offline 9fingers

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Re: Chester 626 mill CNC Conversion
« Reply #447 on: October 16, 2012, 02:43:25 PM »

Rob.Wilson

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Re: Chester 626 mill CNC Conversion
« Reply #448 on: October 16, 2012, 02:49:05 PM »
Thats the type Bob , :thumbup:, now why the F00K could i not fined those on the RS site  :bang: :bang:   




 :beer: Rob

Offline Jasonb

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Re: Chester 626 mill CNC Conversion
« Reply #449 on: October 16, 2012, 02:52:57 PM »