Modifing my Bf20 (Following)
- Thread starter Paolo
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Yes Dave this is!!!!
Monday I'll receive the new bearings...so I'll be able to start to modify the Mill...and restrat to work on the left side wells. Today I conducted the last trial for the electrical connection with box and others stuffs...!
Best regards...
Monday I'll receive the new bearings...so I'll be able to start to modify the Mill...and restrat to work on the left side wells. Today I conducted the last trial for the electrical connection with box and others stuffs...!
Best regards...
More progress
The main spindle done I did a little blackening and I posed a little reflective strep for the spindle sensor!!!
The main component done
All cable and controll panel ready to install
The old light....12Volts
The new one..5V Led Cree
Tomorrow I'll try to install all together...
The main spindle done I did a little blackening and I posed a little reflective strep for the spindle sensor!!!
The main component done
All cable and controll panel ready to install
The old light....12Volts
The new one..5V Led Cree
Tomorrow I'll try to install all together...
More progress today...!!! ;D
The Head
Column
Motor
Main Panel&servoamplifier ready...
Control Panel and panel light
ALL together...
...and finally.....IT RUNS
Some things need to be done ..belt protection and some more....!!!!!! BUT IT RUNS :big:
The Head
Column
Motor
Main Panel&servoamplifier ready...
Control Panel and panel light
ALL together...
...and finally.....IT RUNS
Some things need to be done ..belt protection and some more....!!!!!! BUT IT RUNS :big:
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Nice work. Im not very CNC literate, but I wanted to ask about the motor mechanics of positioning the head along the z-axis. Does the motor turn the the main vertical threaded lead screw directly via gear reduction? Or is it somehow connected to the shaft mechanism of the crank wheel (the one for manually raising/lowering the head). Maybe that's different than my mill, Ive seen some that are a worm gear & some that are kind of a rack & pinion idea, but Im trying to visualize how they might be connected.
Reason I ask is the topic of gas struts to offset the weight of the mill head was raised in another post here
http://www.homemodelenginemachinist.com/index.php?topic=17844.0
I posted a link on a manual machine installation here
http://homepage3.nifty.com/amigos/60_Gas Spring/GasSpring-e.htm
Will you be using anything like this, or can the motor provide the torque on its own as-is?
How much do you think the assembled head will weigh?
Reason I ask is the topic of gas struts to offset the weight of the mill head was raised in another post here
http://www.homemodelenginemachinist.com/index.php?topic=17844.0
I posted a link on a manual machine installation here
http://homepage3.nifty.com/amigos/60_Gas Spring/GasSpring-e.htm
Will you be using anything like this, or can the motor provide the torque on its own as-is?
How much do you think the assembled head will weigh?
Hi Swede...
Thanks a lot for your appreciation...
Dear petertha
Yes the step motor turn the main vertical threaded lead ball screw via timing belt reduction and I maintained the shaft mechanism of the crank wheel for manually raising/lowering the head when used manually...The motor is capable to move up and down without problem the head now more than in the past because I reduce weight discarding the electrical box and gears and hold brush motor...so the gas struts is not needed. In effect I didn't have a precise weight of head..I'll test next time I have to remove...Nice idea!! I can estimate about 15 kg more or less..
Thanks a lot for your appreciation...
Dear petertha
Yes the step motor turn the main vertical threaded lead ball screw via timing belt reduction and I maintained the shaft mechanism of the crank wheel for manually raising/lowering the head when used manually...The motor is capable to move up and down without problem the head now more than in the past because I reduce weight discarding the electrical box and gears and hold brush motor...so the gas struts is not needed. In effect I didn't have a precise weight of head..I'll test next time I have to remove...Nice idea!! I can estimate about 15 kg more or less..
HS93
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I have the smaller version of yours, the warco WM14 that I would like to change the drive motor as it overheats at full speed using fine cutters, have you got any more information on the main drive system motor you are using and the gear ratio
thanks
Peter
thanks
Peter
Hi Peter
My old motor was 850W..but where power needed..Now I have 1HP Real power...the gear ratio is quite 1:1 and now the spindle runs at 3380 rpm the motor at 3650rpm. I newer reached this velocity!!! I have to do another little improvement like a new motor pulley and I have to modify the rear support for installing the new bigger motor pulley..but not for the moment. I'm building the spindle protection before all. I'll show you as it will be completed. In a few words I compared the old arrangement and I did the new with just a little upgrade just to be conservative...Is a small mill and I have to use it as it is...for my security!!!
My old motor was 850W..but where power needed..Now I have 1HP Real power...the gear ratio is quite 1:1 and now the spindle runs at 3380 rpm the motor at 3650rpm. I newer reached this velocity!!! I have to do another little improvement like a new motor pulley and I have to modify the rear support for installing the new bigger motor pulley..but not for the moment. I'm building the spindle protection before all. I'll show you as it will be completed. In a few words I compared the old arrangement and I did the new with just a little upgrade just to be conservative...Is a small mill and I have to use it as it is...for my security!!!
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are you going to keep your keyboard as it is shown in the first pic?
my keyboard was in the same (ish) place, until a bit of swarf got between the arrow keys that i did know about. so when i moved my table over to the left you can imagine my surprise when the table didn't stop when i let go of the button
my keyboard was in the same (ish) place, until a bit of swarf got between the arrow keys that i did know about. so when i moved my table over to the left you can imagine my surprise when the table didn't stop when i let go of the button
HS93
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Hi I am hoping to do this conversion but I am having difficulty working out how to get the drive to the pulley from the gear below I can see that it must be via the piece I have arrowed but how does this part connect to the gear below or have you internally splined this part marked with an arrow
thanks
Peter
thanks
Peter
I too am very interested in how you got the upper toothed belt drive pulley attached through the large spindle bearing and onto the lower gear shaft in your setup.
Any chance of going through it a little deeper rather than what you have already shown, just to make it a lot easier to understand, maybe a sketch if you haven't got pics.
Thanks
John
Any chance of going through it a little deeper rather than what you have already shown, just to make it a lot easier to understand, maybe a sketch if you haven't got pics.
Thanks
John
Dear friends.....
OK the spindle pulley is attached as shown in the attached drawing ...more clear now? :big: The belt is not a timing belt...and I realized just one prolong inside the shaft fixed by Loctite shown in the picture "main component done". I'm trying to post another schetch showing the original main components!
best regards....
View attachment BeltDriveServo.pdf
OK the spindle pulley is attached as shown in the attached drawing ...more clear now? :big: The belt is not a timing belt...and I realized just one prolong inside the shaft fixed by Loctite shown in the picture "main component done". I'm trying to post another schetch showing the original main components!
best regards....
View attachment BeltDriveServo.pdf
