[4]

X2 Mini Mill CNC Conversion?

[3]
[10] Like what you see?
Click here to donate to this forum and upgrade your account!

jumps4

Global Moderator
H-M Platinum Supporter ($50)
Joined
Apr 30, 2012
Messages
2,236
thats good you know your mill if chatter was not a problem with it on there we may be set. lets try without it first then move on from there. if we need it you may be able to use the cylinder and make new mounts or something.
steve
 

MGP

Active User
Registered
Joined
Apr 19, 2012
Messages
189
My X axis was getting hung up going + full travel. Found the problem just need to dremel a little
IMG_0301-1.jpg

It was hitting the set screw and coupler
IMG_0302-1.jpg

IMG_0301-1.jpg

IMG_0302-1.jpg
 

jumps4

Global Moderator
H-M Platinum Supporter ($50)
Joined
Apr 30, 2012
Messages
2,236
that was an easy fix
when you reassemble i would run to the ends of travel before tightening the bearing supports also incase there is any side load on the screws due to miss alignment.
steve
 

MGP

Active User
Registered
Joined
Apr 19, 2012
Messages
189
That one was but im not sure about this one

heres whats limiting my Y-axis
IMG_0303.jpg

By this much
IMG_0305.jpg


Has anyone encountered this problem and if so what did you do about it?

IMG_0303.jpg

IMG_0305.jpg
 

jumps4

Global Moderator
H-M Platinum Supporter ($50)
Joined
Apr 30, 2012
Messages
2,236
i would contact the supplier. it looks to me like the ballnut is on the wrong side of the bracket?

steve
 

jumps4

Global Moderator
H-M Platinum Supporter ($50)
Joined
Apr 30, 2012
Messages
2,236
if that ballnut was turned around and inserted into the bracket from the other direction would it interfere in the y travel going toward the column?
steve
 

MGP

Active User
Registered
Joined
Apr 19, 2012
Messages
189
if that ballnut was turned around and inserted into the bracket from the other direction would it interfere in the y travel going toward the column?
steve
That might be but i think if i turned it around i would loose the balls going the other way to full travel even with that im getting more than the table -advertises im getting 5.990" on Y-axis advertised is 5.1" and 12.250" on the X- axis advertised is 11.8"
 

jumps4

Global Moderator
H-M Platinum Supporter ($50)
Joined
Apr 30, 2012
Messages
2,236
ya i would not remove the nut without their input it would be fun to reassemble i'm sure.
steve
 

MGP

Active User
Registered
Joined
Apr 19, 2012
Messages
189
if that ballnut was turned around and inserted into the bracket from the other direction would it interfere in the y travel going toward the column?
steve

No it would not interfere but with the space in the pic i think i would loose some balls

IMG_0306.jpg

IMG_0306.jpg
 

MGP

Active User
Registered
Joined
Apr 19, 2012
Messages
189
OOPS
This is why it is always good to take pics of things when you get them its my fault well gotta go take it apart

IMG_0292.jpg

IMG_0292.jpg
 

jumps4

Global Moderator
H-M Platinum Supporter ($50)
Joined
Apr 30, 2012
Messages
2,236
if the ballnut had a cardboard tube in it when you assembled it put it in as you unscrew it?
steve
 

jumps4

Global Moderator
H-M Platinum Supporter ($50)
Joined
Apr 30, 2012
Messages
2,236
that looked easy
get it back together yet?
steve
 

MGP

Active User
Registered
Joined
Apr 19, 2012
Messages
189
That might be but i think if i turned it around i would loose the balls going the other way to full travel even with that im getting more than the table -advertises im getting 5.990" on Y-axis advertised is 5.1" and 12.250" on the X- axis advertised is 11.8"
Well i only get 5.1" on the Y-axis now and have to be careful if i run it all the way to the colum end i will loose balls so a limit switch is needed there im going to plan my attack on how im going to mount them
 

jumps4

Global Moderator
H-M Platinum Supporter ($50)
Joined
Apr 30, 2012
Messages
2,236
what is the spindle to column distance on an x2?
you dont think the y slide is on backwards do you?
that may move the mount forward so the balls dont fall out?
steve
 

MGP

Active User
Registered
Joined
Apr 19, 2012
Messages
189
what is the spindle to column distance on an x2?
you dont think the y slide is on backwards do you?
that may move the mount forward so the balls dont fall out?
steve
I dont have my mill here to measure, Y slide is definitely not on backwards it can only go on one way but if the ball screw was a little longer it would not be a problem i will have to see if they sent me the correct length.
 

MGP

Active User
Registered
Joined
Apr 19, 2012
Messages
189
Heres a couple of pics i found showing the Large Table compared to the factory X2 Table
tablessidebyside.png
bases.png
tabletops2.png
tablebottoms3.png

tablessidebyside.png

bases.png

tabletops2.png

tablebottoms3.png
 

MGP

Active User
Registered
Joined
Apr 19, 2012
Messages
189
A little update im Changing my X & Y couplers because i think they are the problem in the backlash im having ill update when done.
Here is what they were lovejoy spider coupler
ZeroBacklashCoupler2_zps80e3d13a.jpg

And now heli-cal anti backlash couplers
ZeroBacklashCoupler1_zpscc0b4425.jpg

ZeroBacklashCoupler2_zps80e3d13a.jpg

ZeroBacklashCoupler1_zpscc0b4425.jpg
 

MGP

Active User
Registered
Joined
Apr 19, 2012
Messages
189
Well Finally!!!!!! i got her accurate and started machining a part for a custom gun build here is a small video and a pic of the first operation done
Video wont load ill try later.
IMG_0648_zps1e896071.jpg
IMG_0647_zps0ad244cc.jpg

IMG_0648_zps1e896071.jpg

IMG_0647_zps0ad244cc.jpg
 

jumps4

Global Moderator
H-M Platinum Supporter ($50)
Joined
Apr 30, 2012
Messages
2,236
nice mgp it looks like you got most of the problems resolved and the g-code figured out.
steve
 

MGP

Active User
Registered
Joined
Apr 19, 2012
Messages
189
Yes i did Thanks Not the best pic but its coming alone
DSC00574_zps00f469f8.jpg

DSC00574_zps00f469f8.jpg
 

MGP

Active User
Registered
Joined
Apr 19, 2012
Messages
189
I had a problem with the bearing nuts on the X-Axis coming loose and creating a lot of backlash so i took the nuts that came with the ballscrew and drilled and tapped them 4-40 and put set screws in them. there not coming loose anytime soon. Also with the zero backlash couplers this thing is super accurate!!!!!
 

jumps4

Global Moderator
H-M Platinum Supporter ($50)
Joined
Apr 30, 2012
Messages
2,236
it all just keeps getting better, an adjustment here a little tuning and pretty soon you have a really nice machine you can depend on for years of fun.
nice job mgp
steve
 

lseguine

Newbie
Registered
Joined
Nov 10, 2012
Messages
11
hello MGP and Jump4,

great looking job there.. i have followed hasses build and have my sheen up and running also. but have a backlash probolem. i'm using bigger motors and drivers, with a c11 breakout board the drivers are 5056D. and the largest motors in the 23 class.

i know way over power for this little sheen, but i have a bigger project that things might migrate to down the road.

where did u find the couplers?? i am thinking that might help some here. my x axis is set with 0.018 back lash and Y axis is now at 0.022 but still i get y axis lost movement on turnaround moves..

also where did u find the larger tabels???

would love to incorperate them into my sheen.

Larry in alaska
 

jumps4

Global Moderator
H-M Platinum Supporter ($50)
Joined
Apr 30, 2012
Messages
2,236
hello
thanks for your comments
mgp has been going to school and hasnt been here for a while so i will answer you. the couplers are off ebay but make sure you type zero backlash or anti backlash to search for them. they need to be a bigger diameter than 1". lovejoy couplers wont work well. if you have your gibs too tight it will cause the couplers to flex also. if you have bearings on the leadscrew check the preload it may be too loose. the larger base came from littlemachineshop.com . dont try to adjust to much backlash out it will cause binding once the machine warms up a couple thousands is wanted, just check and set mach3 to compensate for the backlash, if a small mill like these will cut a circle to within a thousand or two of round that is pretty good. if i need more accuracy than 2 thousands i use a boring head to finish the hole. since most parts only require accuracy in a few key areas it is better and faster to make the part with extra tolerance in the key areas and come back and fine tune the part for the required fit.
steve
 

OakRidgeGuy

Active User
Registered
Joined
Oct 6, 2012
Messages
486
The larger table is a SX2 table, maybe littlemachineshop.com can help you with that. I have seen it availible before, but for the life of me, I can not seem to be able to find the base and table by it's self as an item to be had for sale.
 

MGP

Active User
Registered
Joined
Apr 19, 2012
Messages
189

MGP

Active User
Registered
Joined
Apr 19, 2012
Messages
189
hello MGP and Jump4,

great looking job there.. i have followed hasses build and have my sheen up and running also. but have a backlash probolem. i'm using bigger motors and drivers, with a c11 breakout board the drivers are 5056D. and the largest motors in the 23 class.

i know way over power for this little sheen, but i have a bigger project that things might migrate to down the road.

where did u find the couplers?? i am thinking that might help some here. my x axis is set with 0.018 back lash and Y axis is now at 0.022 but still i get y axis lost movement on turnaround moves..

also where did u find the larger tabels???

would love to incorperate them into my sheen.

Larry in alaska

I had to ream the couplers to fit my shafts but was not a problem at all. Dont know if your interested but i have my X-Y Table that came with my X2 but shipping to Alaska would be painful.
 

OakRidgeGuy

Active User
Registered
Joined
Oct 6, 2012
Messages
486
I have read completely through this thread. I want to say to Steve and MPG, that this thread is great and is way better than any of the threads that I have read over on CNCzone. Over there, I get lost with all of the mumbo jumbo and knowledge boasting. You guys made it a lil easier to understand by just keeping it to the nuts and bolts, instead of getting off into the deep end of TMI. I want to say thank you for that. I already feel more comphy about maybe doing a conversion. Over on the other site, I never felt like I was going to be able to comprehend everything that I was reading.. heck I even tried to find a CNC for Dummies! There is something for the KISS system!

Doc
 
[5] [7]
Top