+TacticalKeychains You saw the sunsets.....how the heck am I supposed to edit video while watching that?! That was the first 3 days.......after that, I've either been busy or lazy. :)
+Mike Higgins Yes I do want to make a cover for the belt, I just haven't decided how to do it yet. I would like to do something like a traditional looking belt shroud maybe put together either by soldering or even rivets. Any ideas?
+russtuff Looks like whatever you do it will need to be pretty thin to fit between the upper pulley and the cross slide. I guess you could get some extra clearance by turning down the outside of the top pulley. Seems like the side plates are much taller than they need to be to keep the belt on.
Nice looking build. How do you like the belt drive? I'm considering doing a belt drive for my mill conversion, but I'm undecided. I like the idea of rotating the steppers out of the way for a smaller footprint, but not at the cost of performance. Thanks again for your videos - they're great stuff!
+Paul Frieden Performance wise its been perfect. I'm still having backlash issues on the X-Axis, but its repeatable backlash which means I can easily counter it in LinuxCNC (which is what I'm doing now). I have about .006" backlash total on this axis, but my parts repeatably come out within about .0003" of each other (which is amazing!).
+Paul Frieden I never measured them separately, but my experience with my mill leads to think maybe .001" or so is due to the screw itself. Also, I just realized a couple days ago that my belt drive is not perfectly aligned, and I need to make new standoffs 1/4" longer. I'm not sure if that would make any difference in the backlash though, just make the belt engage a bit flatter.
hey bud how can I contact you in private? I want to see if you could possibly machine the ball nut block for the g0704 cnc kit I bought the hoss guide and plans and can provide the info needed... I just don't have the tooling needed yet to make this part... ohh Ya I'll pay Ya :)
was there any reason of choosing the square locking nut instead of two DIN 981 type baring locking nuts? Doesn't the setscrew, for loking the square nut damage the thread on the ballscrew?
+koitk linearmotionbearing2008 supplies that square nut. The setscrew doesn't actually push against the threads itself, but this cool little threaded plug that perfectly matches the threads already in the screw. So really it's like creating a tight section of threaded nut within the nut itself. Honestly, I have not had much luck using these square nuts unless you use blue threadlocker, which is what I do now. In my mill I use a jam-nut against the square nut.
+russtuff We updated our small milling machine from steppers to 250W AC servos, so I used them there. Well they are quite cheap and ground on both sides but you kind of need the correct key for them. The thing I liked most about them is their small form factor and also they look good.
koitk Sometimes I wish when I got into this hobby I would have gone servos. I don't know anything about them though, and I'm not expecting to ever do another upgrade.
+russtuff Well, it depends how you want to run the servos, we actually run them exactly as you run your steppers, from mach3 breakout board with step and pulse signals. The main difference is loop from drivers to servo motors is closed via feedback from the encoders (we use 2500p/rev) so once the Mach3 board has given a pulse(es) the servo driver does what it can to drive to the specific location and hold it there. Even if you are able to move the table or cross slide the driver knows it and moves it back to where it supposed to be. And the biggest advantage is they are silent, there's no sound like you have in the steppers. I guess one of the advantage of servos is one can have them as powerful or fast as ones wallet allowes. We purchased our servos from China and we got our 3 AC servos (250W), 3 drivers and 3 power supply's for less than 1000€.
You basically not getting chips there. The problem is, you hair/clothes/bodyparts. Give it at least a thin plastic(plexi/makrolon) cover, before you give one of your finger to it. And one small thing, wich usually annoys me in Americans video. The video beeing watch by all around the globe. You can see how many non american viewer you have at statistics. For them you could be pollite if write or somehow show the dimensions in metric units as well.
Hello I make an appointment ... I have the same supports and I find it strange the axial and radial play that the two bearers have !!! This is normal that I have so much game ?? thanks greetings
I believe mine were the same, but once everything was tightened down it was not a problem. I say not a problem, but the reality is my X axis does have some backlash I am always fighting. I am not certain if it is from the bearing blocks or the belt drive. I suspect belt drive, but have not bothered to try and make it better (yet).
Good question. I was just able to access from my phone but couldn't from my home computer. Phone room it to Dropbox and computer went to google docs...not sure
I cannot like these videos enough. Great work mate, keep it up!
+Aaron DC mediA Thanks!
Russ I love your videos ....... Awesome work
+Titanis2000 Thanks!
Another Great Video! Very heavy Duty
Be Safe,
Sam
+CNC4XR7 Thanks Sam :)
Awesome piece group. Cool stuff.
+aserta Thanks!
Gotta say, I'm lovin' this series!! :)
+bluehandsvideo Thanks!
+TacticalKeychains Been on vacation this week :)
+TacticalKeychains You saw the sunsets.....how the heck am I supposed to edit video while watching that?! That was the first 3 days.......after that, I've either been busy or lazy. :)
Nice , perfect job my dear
+asghar rezaei Thanks!
Awesome, well done sir very useful
Thanks!
"Damage will occurif"
Awesome videos Russ! What kind of Mill do you run and did you convert it yourself?
Hi!
It's a G0704 from Grizzly. Thanks for watching!
I like the placement of the stepper under the lead screw. Are you planning to do something to protect the belt and motor from chips and coolant?
+Mike Higgins Yes I do want to make a cover for the belt, I just haven't decided how to do it yet. I would like to do something like a traditional looking belt shroud maybe put together either by soldering or even rivets. Any ideas?
+russtuff Looks like whatever you do it will need to be pretty thin to fit between the upper pulley and the cross slide. I guess you could get some extra clearance by turning down the outside of the top pulley. Seems like the side plates are much taller than they need to be to keep the belt on.
+Mike Higgins Oh that's a good point. I'll have to break out the cardstock and start trying some things.
Nice looking build. How do you like the belt drive? I'm considering doing a belt drive for my mill conversion, but I'm undecided. I like the idea of rotating the steppers out of the way for a smaller footprint, but not at the cost of performance.
Thanks again for your videos - they're great stuff!
+Paul Frieden Performance wise its been perfect. I'm still having backlash issues on the X-Axis, but its repeatable backlash which means I can easily counter it in LinuxCNC (which is what I'm doing now). I have about .006" backlash total on this axis, but my parts repeatably come out within about .0003" of each other (which is amazing!).
+russtuff How much of the backlash do you figure is coming from the belt drive vs the ball screw and the rest of the assembly?
+Paul Frieden I never measured them separately, but my experience with my mill leads to think maybe .001" or so is due to the screw itself.
Also, I just realized a couple days ago that my belt drive is not perfectly aligned, and I need to make new standoffs 1/4" longer. I'm not sure if that would make any difference in the backlash though, just make the belt engage a bit flatter.
than you , thank you very much !
hey bud how can I contact you in private? I want to see if you could possibly machine the ball nut block for the g0704 cnc kit I bought the hoss guide and plans and can provide the info needed... I just don't have the tooling needed yet to make this part... ohh Ya I'll pay Ya :)
was there any reason of choosing the square locking nut instead of two DIN 981 type baring locking nuts? Doesn't the setscrew, for loking the square nut damage the thread on the ballscrew?
+koitk linearmotionbearing2008 supplies that square nut. The setscrew doesn't actually push against the threads itself, but this cool little threaded plug that perfectly matches the threads already in the screw. So really it's like creating a tight section of threaded nut within the nut itself.
Honestly, I have not had much luck using these square nuts unless you use blue threadlocker, which is what I do now. In my mill I use a jam-nut against the square nut.
+koitk I just google'd the bearing nuts, looks like McMaster has them too. I may snag some for testing. Thanks for the tip!
+russtuff We updated our small milling machine from steppers to 250W AC servos, so I used them there. Well they are quite cheap and ground on both sides but you kind of need the correct key for them. The thing I liked most about them is their small form factor and also they look good.
koitk Sometimes I wish when I got into this hobby I would have gone servos. I don't know anything about them though, and I'm not expecting to ever do another upgrade.
+russtuff Well, it depends how you want to run the servos, we actually run them exactly as you run your steppers, from mach3 breakout board with step and pulse signals. The main difference is loop from drivers to servo motors is closed via feedback from the encoders (we use 2500p/rev) so once the Mach3 board has given a pulse(es) the servo driver does what it can to drive to the specific location and hold it there. Even if you are able to move the table or cross slide the driver knows it and moves it back to where it supposed to be. And the biggest advantage is they are silent, there's no sound like you have in the steppers. I guess one of the advantage of servos is one can have them as powerful or fast as ones wallet allowes.
We purchased our servos from China and we got our 3 AC servos (250W), 3 drivers and 3 power supply's for less than 1000€.
How about the belt protection from a chips?
I always intended to make a guard, but chips haven't been a problem so I've slacked off on that idea.
Thanks for watching!
got it ... Thanks!
You basically not getting chips there. The problem is, you hair/clothes/bodyparts. Give it at least a thin plastic(plexi/makrolon) cover, before you give one of your finger to it.
And one small thing, wich usually annoys me in Americans video. The video beeing watch by all around the globe. You can see how many non american viewer you have at statistics. For them you could be pollite if write or somehow show the dimensions in metric units as well.
Hello
I make an appointment ... I have the same supports and I find it
strange the axial and radial play that the two bearers have !!! This is normal that I have so much game ?? thanks greetings
I believe mine were the same, but once everything was tightened down it was not a problem. I say not a problem, but the reality is my X axis does have some backlash I am always fighting. I am not certain if it is from the bearing blocks or the belt drive. I suspect belt drive, but have not bothered to try and make it better (yet).
Ok thanks for answering ... I still do not install it ... I'll try to see what happens !!!! regards
What size steeper did you end up using? What size are your pulleys?
+Frank Ramsden Check out video number 2 (I think) in this series for my full list of parts.
Yep I found it now, thanks. Can't download your spreadsheet. Just FYI
+Frank Ramsden Is it an access error?
Good question. I was just able to access from my phone but couldn't from my home computer. Phone room it to Dropbox and computer went to google docs...not sure
Just pulled it up on the computer...strange. Thanks