hi hdokes,
I have played with 'prototrak' equiped lathe ( not sure of model) but only to fix minor connection problems in the control box (if i recall correctly, the pc part slides out one end of...
Type: Posts; User: BillTodd
hi hdokes,
I have played with 'prototrak' equiped lathe ( not sure of model) but only to fix minor connection problems in the control box (if i recall correctly, the pc part slides out one end of...
sorry, i didn't take any pictures.
Have a look at your controller board (it will be some kind of pc) , see if it has a spare pci slot or, like my other trak edge machine, an onboard vga output...
I've just fitted a pci vga card and 8" lcd monitor to my brother's AGE 3 machine . Nice to see age 3 is in full colour !
The ebay monitor waseasy enough to mount in place of the crt and runs...
D.L. I'd like to see that :-)
Bill
Just to provide a bit of useful info (not much SWI info in the web)
I have the Quill dro working now. The default settings are pretty accurate using an Easson 5um glass scale. There is a...
Thanks ATscuba .
I took the cover off the encoder end of the motor and traced the wires of the X axis (I assume the same pins will be used for all axes) .
I'll report back if all works as...
Sorry to dig up an old topic, but do you have the pin numbering for the stop/go switch?
(I'm also looking for the pinout of the 14pin SWiI Q input (Z scale) if anyone has it)
TIA
Bill
Did you get anywhere with your conversion?
I've just acquired a prototrak edge (2D) machine and have been thinking along similar line as you :-)
BTW have you figured out the pinouts for...
The older prototrak machines us a MDA or CGA monitor which is not usually compatible with VGA monitors. However, the full size PC mother board will take a standard ISA VGA card
The software...
Hi All
Anyone wishing to build this project should bare in mind that I designed this some years ago for use with the 1.5V (positive frame) callipers that were around at the time. Modern callipers...
Hi
Attached are the only schematic and pcb layout that I have of the DRO. You should bare in mind that I designed this some years ago for use with the 1.5V (positive frame) callipers that were...
Many lathes (including my Hardinge see https://www.youtube.com/watch?v=vaFWNz3fUGE) use reeve's drives.They tend to be limited to below 10hp.
Bill
Acceptable for what?
Cable stretch and sag will be no worse that that found in belt and chain drives
The major drawback with cable is usually resonance (like a guitar string) . Belts and chains...
I don't think you've understood the differential drive system above. :)
From what i can see of it, the Belsaw uses a standard winch arrangement with a variable speed (variable slip) belt drive.
...
Hi Rob,
I used a Doga DC Gear Motor (24V 120W 25rpm 15Nm ) left over from another project - very nice motor, but bloody expensive to buy new. A big vehicle wiper motor might do the job . I...
The cable are tensioned by a 'tensioner adjuster pin' item 14 - so obtaining a fixed pre-load.
It's now really suitable for long axes (You'd need a lot of cable), but for short low-friction...
Came across this while browsing patents:
Rotary to linear transmission
The clever thing here, is the way it uses a differential drive that allows large cable drums (for traction and maximum...
Very neat :)
What sort of step rate can the interface deliver?
Bill
The carriage and/or the cross-slide are driven by the power feed motor (mounted on the front of the carriage) and are engaged via two clutch levers on the apron (up is engaged - down is free).
...
Looks interesting :)
Please keep us posted with your progress.
Bill
My thoughts only but ...
Steppers either have enough power to get the job done, or they don't. If they are losing steps then adding extra ones seems a bit of a bodge (I suppose if speed is not...
You seem to be confusing two different things:
1 - displaying the position - for example a DRO
Here the axis is moved (usually manually), the DRO counts the pulses from the scale and a display...
Sounds like you could do what you want with a classic PID (Proportional , Integral, Derivative) controller, programmed into the PIC or PC.
Your 10mm/s is only 10,000 pulses per second even at 1...
It is still not clear in my mind what you are trying to do; Are you trying to capture positional data on the move (for a servo system, for instance) or are you digitising (locating the position of...
Which scales do you have (or intend to buy)? - the document describes three types PPL TTL and HTL which have different power and output voltages.
If the cable run is short <2m then you could...
What's wrong with their pc interface?
Welcome To Innovative
I'm afraid I don't have the time to work on this ATM I doubt the little PICs I'm currently using would be able to keep up with the scales (and hence lose counts) but it could be done fairly easily...
Good to see some progress :)
It looks great :)
It'll be interesting to see how well your design works: It looks to me only one roller is taking the cutting force in each direction (Roller nut...
A little bit of friction that will act like a damper , reducing vibration in the belt, may not be such a bad thing.
Bill
I've no direct experience but...
Is the problem area at a consistent diameter ? if so I'd suspect linear guide way. (e.g. contamination)
If the problem areas are spaced at similar distances, is...