okay i'll start google-ing that.
Type: Posts; User: Tailgunner
okay i'll start google-ing that.
I need to construct a gantry to move my Bridgeport mill around in the garage so I can eventually lower it into my basement.
I'm quite fond of this design:
A Frame Gantries Mobile Gantries A...
How many amps should you be able to get. I read on the net 10 to 15 A for a Bridgeport conversion.
But if every stepper can draw 7 A , then that's already 21 A if all steppers move together.
I...
Could someone give some explanation on picture 3 and five.
In picture 3 there is the spindle speed option (decrease/increase). How does it work?
In picture 5 there is the spindle low and high...
Thanks for the reply.
I'll look into the manual first so maybe i'll have more understanding of the electronics. The next step will be removing te two cabinets and eventually the table because...
Not this machine, it' s a rigid ram.
But the machine now already sits in my garage (headless).
Do you need to keep the transformer T1 (240V/120V step down) to get the 120 vac.
If I want to use the original spindelcontrol (airvalves and brakes,...) what parts do I certainly need to keep?
My mill should be coming my way soon now.
Because the garage door isn't tall enough we are thinking of taking the head off. If been reading the maintenance manual (Bridgeport series 1 CNC) and I'm...
I just want to have it up and running. If I can do that by replacing a few transistors that won't be a big deal. Maybe I'll start with the hillbilly bob and keep the original drivers, just for...
How far would you be able to tilt it? Can something come off the mill in doing so.
Thanks for the warning. I won't do that then.
Thanks for the additional information and picture Mcgyver.
I believe the Bridgeport series 1 CNC that I want to buy has to big, sturdy eye-bolts on top of the ram. Is it okay to lift the entire machine using these eyebolts and a crane to get it on a truck. ...
I know the owner has switched the input voltage from 3x220 V to 380 V.
Maybe something went wrong there.
When I get my hands on the machine, it will be the first thing I look into.
I' m just about to buy a Bridgeport series I CNC with Boss 5 control.
I went to the owner today. The machine looks in pretty good shape.
He bought the machine to do a retrofit but he hasn't got...
It would only be for hobby purposes, nothing industrial. So i think de EZ track would be the better option for me since it can also be operated manually.
If you were on the point of buying a bridgeport mill. Which one would you choose, an interact or an EZ track and could you tell me why?
I'm on the point of buying a bridgeport mill.
Only problem remaining is transportation.
I'm gonna contact some transporting firms but i need the dimensions, so they know how much space the mill...
To bad, there isn't a description of the actual building proces.
That would have been a great help for the un-educated like myself.
Another question I have is about the ballscrew. The ballscrew for the x-axis is the longest one. Since it is so beefy he had sag in the middle of the ballscrew. How can one get around this...
I was wondering what the minimum gap needs to be between the flanges and the members and still have a fully filled joint of epoxy.
Another qustion i have is how do you get the two linear ways for...
I'd like to do some machining and i am looking for a second hand mill and lathe. I live in Belgium, but I would purchase them in the UK because there is a lot of machinery being sold there and for a...
Has anyone ordered the kit from 'tenmetalman' and had it shipped to europe? I'm just wondering what to do with customs, is there any way to reduce taxes?
Ok, thankx, that's better.
Kreutz, do you have any idea when you posted those equations? If been going through this thread but I can't seem to pin-point them?
Nice explanation indeed, thanks for the info.
I've been looking at the schematics 'Modified UHU power stage' and i have a question about the IR21844. It says in the datasheet that the gate drive supply ranges from 10 to 20 V. So for a Mosfet...
I ' ve read that you can use IGBT's on the controller instead of MOSFETS. Can someone who has done this say what IGBT's they used and what the necessary changes are that have to be made to the...
Ok ,i'll take a look at that.
Another question. I've read that a DC-motor can draw multiples of the nominal rated current a start-up, I've read as much as 3 times. Is this also the case when a PWM...
I have a PMDC motor from Indiana General.
The ratings are: 240 V / 16 A / 2050 rpm
The motor has an encoder (optical) on the end of the shaft.
I'm looking for a controller for this motor.
I am...
After the iron has been cast, how do you have to cool it. I mean, if i cast a large piece of cast (grey) iron that needs to be machined. So I'm looking for a good machinability. I read on I site...