Thanks! The ball screw track in the base is 6.5" wide by 7" deep. The ball screw is a 40 mm shaft and the nut is 4.75" diameter- 120 mm range. On the other hand, the 1.8 kw servos I am driving it...
Type: Posts; User: gt40
Thanks! The ball screw track in the base is 6.5" wide by 7" deep. The ball screw is a 40 mm shaft and the nut is 4.75" diameter- 120 mm range. On the other hand, the 1.8 kw servos I am driving it...
Update:
I was able to partially finish the shear panels on the machine's sub-base and got the front and back one's welded on. Did a test fit of the base on the sub base and it is really solid. ...
Update:
I was able to get a 300 lb scrap piece of steel to make the bearing blocks. It is 3" thick. Moving it and cutting was interesting!
393944
Here is the design for the bearing...
Update:
I am back to work on this build following moving from CA to WA and setting up my shop. I also have been an instructor at the Bainbridge Barn- a 20000 square feet 11 studio non profit...
I used surplus ground ballscrews from ebay, diy bearing blocks and carriage assembly, DMM Tech Dyn 2 servos and drives. They have schematics for a lot of different servos and steppers and there are...
I had random issues where mach would stop working. Threading with the smoothstepper didn't work although I think they may have finally gotten to it. The pokeys board was just wasn't stable so for...
I had random issues where mach would stop working. Threading with the smoothstepper didn't work although I think they may have finally gotten to it. The pokeys board was just wasn't stable so for...
Update:
I recently made some significant changes to this build. Scraped Mach 3 and 4 as I just couldn't get everything to run right, experience periodic random issues. I tried both a...
I just upgraded to Mach4 and it is working fine. A few bugs on homing but am really happy with how it cuts. Here is a link to a short video I recently made of it cutting in Mach 4 and fusion 360...
Thank you for the suggestion-
I was able to correct the z direction by changing the direction pin to neg. The z axis limit issue still is the same with the switch going on and then Mach stops till...
Update:
I have the DMM servos and drives working with Mach4 and the Smoothstepper. I was able to cut a 1/2-20 thread and made the gcode with fusion360 and everything cuts fine. Homing though...
Update:
I got Mach4 working with the dmm tech bob and smoothstepper :)
It appears to be a hardware issue with my old XP windows machine I was using for mach3. I took a cheap windows 8 box and...
Thanks for the suggestion but unfortunately, I can confirm that jumping the estop did not work. I have previously done that trouble shooting mach3. Considering that I can reset the estop running...
I followed the instructions from this video to setup the ess to communicate with it. It shows the correct led with a solid and fast flashing one also.
...
The servos work fine in mach3 and I used the same settings for pins 2 dir and 3 step for x and then mapped in mach4 after setting up in the ess config in mach4.
I have a RF45 clone and a 13x40 lathe with DMM servos, drives and BOB. I just got Mach4 and added an ethernet Smoothstepper for the lathe. I configured the ESS and it works fine in Mach3 but I...
I am really looking forward to seeing you progress after the last machine. Post lots of pics!
Thanks for the interest. I moved and am setting up the new shop. I will start work on casting the X axis and Z column after I finish upgrading electrical service in the new shop; Going with...
I used enough washers so the they were half way compressed under load and just adjusted it till it released.
I forget the exact number but theres pics on this thread somewhere you should be able to count. Here is the one I ordered:
McMaster-Carr
Hope this helps.
Nicely done!
I am really not sure where you are coming from on some of your points. The base is stable massive and extremely strong. I reinforced the structure with rebar, 6" 3/8" bolts + the a2 tool steel is...
Sorry for the lack of posts. We had a change and I am moving up to Seattle area and am getting a larger shop to boot. All busy though getting the house ready for sale so it will be a few months. ...
Thanks for the info- I will have to try this...
I have been busy and not able to work on things - hope to do more by the weekend.
Update:
I got everything de-molded and was able to test fit the linear rails. I was able to indicate them parallel to 5 decimal places and about 7 thousands variance on height so the ground steel...
Great job- cuts nice
The bars are precision ground to .001" on all sides and are 1/2"x3"x36" O-1 from Starrett.
I forgot to mention do the alignment with the melamine on a flat surface before you tighten the steel plates down