X1 CNC Build Probotix

[Wrangler97]

Hello,
This is my first post, I would just like to show the progress of my x1 mill. I ordered a 47158 mill from harbor freight for $219, so I couldn't pass it up. I have already started converting it to cnc. First off, I took a whole entire day just cleaning off the grease. I am happy with the quality of the mill so far. I ordered three probotix motors. Two 280 in/oz motors for the x and y axis, and a 400 in/oz motor for the z axis. I made my own motor mounts out of .250 T6061 aluminum. I ordered 8mm thrust bearing for all three axis, these go on both sides of the lead screw blocks. I took the lead screws out of x and y and turned .580 in off the threads. This gave me room to put the thrust bearings. The lead screw is recessed into the block .380 in. So i only lost .200 in of travel. This makes the lead screw operate much smoother and doesn't bind. I am now waiting on the Lovejoy couplers, which should be here this week. I am going to order stepper drives tonight. I am wondering what you guys would recommend for drivers, uni polar or bipolar. The motors are 8 wires. I have a 24V 5Amp power supply. I was looking at probotix drives, but i am not sure to order bipolar or unipolar. I know probotix sells the unipolar with there three axis kits but i am unsure what to buy. I want to make sure I have enough power.

[Wrangler97]

I ended up ordering the probotix unipolar drivers and breakout board. I also ordered limit switches and a 24v fan. I currently have a 24v 5 amp power supply. I am wondering if that will be enough to drive the motors I have. The drivers should be here tomorrow or Friday. I noticed people using a shock to help lift the spindle. Will the 400 in/oz motor lift the spindle. I know running it in unipolar I will only get 283 in/oz. Is this enough to move the head up and down without assistance? Any input would be appreciated.

[Fast01]

I too have an X1. I got it not working from a wholesaler on e-bay for like $80 or something. Turns out the only problem with it was a bad potentiometer. A $5 fix! Anyway, I just got the extended Y-axis kit and long table from LMS and would like to CNC it at some point, so I'd like to hear how your set-up works out for you. Keep the posts coming!

[Wrangler97]

Well I got the electronics from probotix yesterday. I made a heatsink out out of 1x1/2 aluminum and mounted a 24v brushless fan on top. This maybe a little beefy but I want to keep the drivers cool. I ordered the lovejoy couplers about two weeks ago and they just now got put in transit. So I went and turned a few motor couplers on the lathe. They will work for now. I got everything up and running tonight. The x and y axis has .0005 backlash which I was very surprised with. That is half a thou. The green monster motor is great, it lifts and lowers the head with so much ease. I think switching to thrust bearings really is what makes it operate so smoothly. I can crush a pop can with the z axis. I still need to come up with a box to mount the electronics into. Any Ideas? I ordered the 25 dollar breakout board from probotix. It came shipped without any terminals to mount my + and - connections to. I soldered on some screw in terminals. And it is working great. I don't know if they come like that or if I got a funny one. Either way I am very happy with probotix, very fast shipping and high quality products. I will post some more pictures tomorrow after I get my bench cleaned. In the morning I am going to do some test cuts and see how things work out. Hope to post more pictures. If any one has any questions, have at it.

[Wrangler97]

Well I tried the machine out for the first time this morning. I cannot believe how accurate the machine is. It has plenty of power from the steppers. The head moves so easily. Here is the test piece it is just a 1 inch pocket. The finish is so smooth without any steps in the bottom anywhere. I will post some pictures of the machine later today.

[sfrankland]

Looks good.

[Fast01]

That looks awesome! I'm a total newbie at this stuff, so I may not fare as well as you have, but now I'm excited to start working on mine. I just have to wait for the snow to clear some so I can get to the garage. I'm nursing a shattered femur, so traversing the ice is a bad idea! The temp is supposed to be in th 40's the next few days, so hopefully it'll clear up enough to let me get out there to play.

[tubesnakechaz]

Looks good fella. Let's see some light aluminum work. Woowoo

[Wrangler97]

I cannot attach any pictures it gives me a failed upload error. The kb is low and they are under 800 x 600. I mounted all the electronics on a board and mounted it on the peg board. I ran all the wires and mounted everything real sweet like. I made a pocket with X1 in the middle. I used an 1/8 inch four flute endmill. If I would have had something two flute the finish would have been a little more crisp around the edges. I stopped it after two roughing passes for lack of time to finish. It would have been even nicer with a .003 finish pass. I am looking forward to doing some work in aluminum tomorrow. I will post more pictures. Is there any interest in having me put these machines together to sell? I am just curious, I had a good time building this. Let me know what you guys think.

[pyrofx]

Wrangler 97,

Got the same breakout board and drivers as you. The power for the breakout board has two power options, USB (they say this is experimental?) and the onboard solder points. I assume they want you to use the USB for power only? Like you, I preferred to use the other power input so I don't have to run a second cable just for powering the board via USB. I found the same blue pc mount wire blocks as on the board and plan on soldering that onto the board myself. If you or anyone else need one of the wire blocks just PM me on this forum.

Otherwise it's great to see your progress and success with the mill conversion. I'm in process of using the same boards for a laser engraver/cutter. My working area will be approx 35" X 26" using an aluminum gantry rolling on v-groove bearings. I have collected all the parts and currently working on the electronics and system base.

I hope to be posting my progress soon over in the Other Machines/Laser forum - http://www.cnczone.com/forums/general_laser_engraving_cutting_machine_discussion/

Look forward to another update of your machine.

Also tried to upload some pics that were 800 X 600 41 kb and no go!?

[Wrangler97]

pyrofx,

Ok your machine build sounds interesting. I had an old cnc geeker board I fried and used the terminals off it it, Thanks for the offer though. Still can't post any pictures right now, I even tried making them smaller than 800 x 600, the site must be having problems. I have the finished photos to post, hopefully they will be coming soon.

[Wrangler97]

I finally got the wires and drivers mounted and routed. This machine is absolutely amazing. Tons of power. I ripped through aluminum with no problem taking .030 passes with ease. Check out the Glock logo. Let me know what you guys think.