Bushings are the bain of my life!

[Bob Ellis]

Received some Mark 2 bushes today. They were slightly over size, but it only took a few moments to turn them down to an accurate fit. Having finished a Triton for the pen swap today and a Majestic Squire, I'm looking forward to starting my first Alpha tomorrow.

 

[wm460]

In fairness some of the zeta bushings have been too tight in the past.

Scottish by any chance?

 

[turnaround360]

Are the Alpha bushes due in soon?

 

[TaylorsMirfield.co.uk]

Are the Alpha bushes due in soon?

Mark 2 are ready to send out. Mk3 will be around 3 weeks. The mk3 will be plated.

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[bellringer]

The finish problem on the bushing will be being caused on the out side buy no finish turning cycle for any one interested they should be using a G71 roughing cycle then a G70 finishing cycle and the rough on the inside is cause by the only drilling the hole it needs to be either reamed or bored I would bore them if I was them an I would put a tolerance of 6.26 +.03 -.00 and the same tolerance on the tube fit and the concentricity would need to be .03 between the hole and the outside diameter I would also have them made from stainless or titanium I see the best way to achieve this is to have them manufactured in the UK as Taiwan can't hold a tolerance for love nor money. That my two pence worth


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[Vic Perrin]

The finish problem on the bushing will be being caused on the out side buy no finish turning cycle for any one interested they should be using a G71 roughing cycle then a G70 finishing cycle and the rough on the inside is cause by the only drilling the hole it needs to be either reamed or bored I would bore them if I was them an I would put a tolerance of 6.26 +.03 -.00 and the same tolerance on the tube fit and the concentricity would need to be .03 between the hole and the outside diameter I would also have them made from stainless or titanium I see the best way to achieve this is to have them manufactured in the UK as Taiwan can't hold a tolerance for love nor money. That my two pence worth


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what the F you on about Alex?????

 

[silver]

what the F you on about Alex?????

It's not F Vic, it's G....:wink:

70 and 71.. CNC program Vic..

I agree Alex, tolerance is what the UK was built on, us tolerating and even thinking the Taiwanese even making stuff to our standards.

 

[bellringer]

what the F you on about Alex?????

G71 is a cnc Rough turning cycle that has your finishing cut denoted by (w) in the programme and then you call the g70 up with the p start of the G71 line it and the q which is the end of the programme it save you Rewriting the programme for rough and finishing it can save 1000 of line of code if you type G71 fanuc in to the Internet there is a YouTube video that explains it. No one should manufacturer outside the UK if you want the components to work I could find you company's in this country that would beat Taiwan price all day long

 

[bellringer]

F would be feed rate

 

[wm460]

No one should manufacturer outside the UK if you want the components to work I could find you company's in this country that would beat Taiwan price all day long

Wish that was possible here.

 

[Bill Mooney]

Vic it's all double Dutch to me too.

 

[bellringer]

This page explains it more http://www.helmancnc.com/fanuc-g71-turning-cycle/


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[Vic Perrin]

G71 is a cnc Rough turning cycle that has your finishing cut denoted by (w) in the programme and then you call the g70 up with the p start of the G71 line it and the q which is the end of the programme it save you Rewriting the programme for rough and finishing it can save 1000 of line of code if you type G71 fanuc in to the Internet there is a YouTube video that explains it. No one should manufacturer outside the UK if you want the components to work I could find you company's in this country that would beat Taiwan price all day long

Oh yes Alex now you've put it like that I can see the issue

Like F***

 

[bellringer]

I thought so it hit to hard if some one explains it to you and shows an example I have to learn to write full programmes for my apprenticeship and prove them on the machine if I get it wrong it will be very expensive mess


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[Neil Lawton]

Oh yes Alex now you've put it like that I can see the issue

Like F***

You tell the confuser to tell the spinney thing how hard or light a cut to take Vic. It then decides which direction of rotation, and speed to take it at to get the desired result in the given tolerance.

 

[bellringer]

You tell the confuser to tell the spinney thing how hard or light a cut to take Vic. It then decides which direction of rotation, and speed to take it at to get the desired result in the given tolerance.

If your using cam software yes but it tend not to use these canned cycles


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[wm460]

Oh yes Alex now you've put it like that I can see the issue

Like F***

Vic when you work it out let me know how to do it.

 

[bluntchisel]

Looking forward to the new ones Dan !!!

Bloody hell, Dan - here's me thinking my barrel trimmer bits were at fault!!!

Bob.

 

[Grump]

When somebody is right, he should be listened to init?
Whether he should be understood is another matter. That's why we pay people to be experts.
That's why he is studying to become expert.
Sounds to me like a case of guilty of your own recommendations, how many times have I seen "Buy cheap, buy twice" on these boards.

Keep at it Alex you'll do goodly and show these ol farts what can be achieved init?

 

[Bammer]

The finish problem on the bushing will be being caused on the out side buy no finish turning cycle for any one interested they should be using a G71 roughing cycle then a G70 finishing cycle and the rough on the inside is cause by the only drilling the hole it needs to be either reamed or bored I would bore them if I was them an I would put a tolerance of 6.26 +.03 -.00 and the same tolerance on the tube fit and the concentricity would need to be .03 between the hole and the outside diameter I would also have them made from stainless or titanium I see the best way to achieve this is to have them manufactured in the UK as Taiwan can't hold a tolerance for love nor money. That my two pence worth


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Will work better if your re-align the Takion Wave with the Possatronic Pulse