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Messages - fdos

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91
Show"N"Tell ( Your Machines) / Another Mad Project!
« on: October 06, 2007, 05:23:44 PM »
All.

Well typical of me to start another couple of projects before I got the other big ones finished, but hell I need to amuse myself!

Sometime ago I picked up a few Boxford TCL125 training lathes being sold out of a local School.   Needless to say I bought the lot, just to save for a rainy day ;)

I was intending to build a couple of bespoke machines for a job which never materialised.   But lately had a couple more ideas.

Only one of the machines rill ran, and all of them had been vandalised by the schoolkids to some extent.   They were all a bit rusty too.

So this week I pulled one apart, and started modifying the carcase of the machine to allow for some useful swarf (chip) management.  ie, cut a bloody great hole in the bottom!  I will build a custom stand to sit the machine on.

I also removed the bed and cleaned it up, and have temporarily bolted it to a MDF board for testing.   Steppers have gone, and in their place a couple of DC brushed servos.  With The new Leadshine servo drives running them.   These drives run great, and although a naughty Gecko ripoff, they have been redesigned and I fear now they may just be a better product  :o

At the moment running on the original stepper brackets and belts/pullies.   The x axis motor will be swung over to the right on an angled mount later on to make room for a gang too platen on the crosslide.   Both motors/encoders will be protected one way or another.

But this hashed up test works damn well.   The little machine rips along with 5000mm/min (196") rapids.

Many things to do but a good start and if it goes well the others will get the same treatment.

Wayne.....

92
General Mach Discussion / Re: MACH 3 losing XYZ
« on: October 04, 2007, 06:49:31 PM »
You mean your machine is out of position and mach is reporting in position?

Sounds like lost steps, what is your machine, which drives, motor tuning settings?

If steppers.   They will take some time to setup correctly, and in a way that they are always reliable.

I run mach 7 days a week, often more than 12 hours  a day, and we don't lose position.

More information required, then we can do what we can to help you.

Wayne....

93
Art

What machine and controller you run that file on?  Printer port or external controller?

Nice cutting feedrate at 2520mm/min ;)

Wayne....

94
General Mach Discussion / Re: Anilam Crusader 2 retrofit
« on: September 21, 2007, 04:58:52 PM »
If the motors are any reasonable size the Gecko G3x0 drive may just be marginal.

What do the motor data plates say?

What drives are already in the machine?   Analogue input drives can be driven with Mach via the Pixie boards.

Wayne....

95
General Mach Discussion / Re: Problems with 75 MHz settings
« on: September 16, 2007, 09:57:25 AM »
doubled resolution?    Increasing pulse rate will just increase speed not resolution.  Unless you had a pulse multiplier turned on before and not now.

What drives/motors/encoders  are you using?

Wayne....

96
General Mach Discussion / Re: Problems with 75 MHz settings
« on: September 16, 2007, 09:10:27 AM »
You need to retune your settings for the new pulse rate.   Maybe your acceleration and or speed is now too high for your motors/drives.

Wayne....

97
Tangent Corner / Re: Hood has a big beaver.
« on: September 13, 2007, 02:54:41 PM »
Hmm not sure which is more ugly, John S's Beaver or Hoods ;)    "Ahha" probably Johns hehe.

 

98
Show"N"Tell ( Your Machines) / Re: Yet another Retrofit. Hardinge HXL-S
« on: September 12, 2007, 06:46:16 PM »
All

Sorry been just too busy lately, and also just had a few days away down in Cornwall with the family.  (Needed that little holiday though!)  While I was down there got to meet up with Mark Vaughan and his imfamous Avon CNC Mill!   Runs very nice it seems on the new drives and Pixies. 

Re Cubloc.  So far it's working great and one of the most useful Mach compatible devices out there.

Brian.   Sure thing, the Hardinge is back on now, after waiting for one part for months!   Contact me offlist if you wish.

BTW did you get hold of one of the Leadshine boards yet?

Wayne....

99
Show"N"Tell ( Your Machines) / Re: Monty's Problematic Contraption
« on: June 10, 2007, 10:53:53 AM »
Haha you don't want to see my old series 1 Interact that I dumped out in the covered yard!    Might end up as yet another boat mooring in Poole harbour oneday!   There's a few sunk down there already ;)

BUT I had thought recently of resurrecting it for ruff ruff work LOL...

Wayne....

100
Dennis. Yes I'm thankful just wish they were!   Most of my customers seem to suffer the same problem.  BAD PLANNING!!   Seems I forever doing 11th hour work.

It would  help if this machine was ruuning though.

It's been a long haul completely.   The irony is I bought the machine the same week my daughter was born, she was THREE in April LOL.

Wayne....

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