Its not the exact same picture. Many machines have the exact same frame but has it own branding. Other things that might chance is the start / stop buttons the color of the machine and other small cosmetics. My machine is painted green but believe me, its the same machine. I have seen several variations of the exact same thing. Mine is just a whole lot older than yours.
I tried the spring idea but I was not happy with the solution. I made motor boxes for all four axis. All of them with a nema 34 and a 4:1 reduction. I also replaced all the screws with ball screw and nut. I have a yahoo group that I use for students that attended my CNC courses. I will place the design files on and maybe some pictures if you want. Its really a very simple solution and nothing fancy. I need the machine to do some specific aluminium parts for which I believe it is good for. I have milled steel with it before but I felt like the machine was being stressed so I will stick to softer materials. Well maybe with the cnc option can afford to take very small cuts on steel and get good results. Time will tell. The groups is at http://tech.groups.yahoo.com/group/cnc_support I will get some files ready and place them there. On 2013/06/22 01:58 PM, Tomaz T. wrote: > You are saying that you are retrofitting same model of this machine? If there > is a chance, I would rally appreciate to see design that you have. > > > I agree, I was also considering to mount gearing directly on pinion shaft > that drives quill up and down, but I think there should be some decent amount > of force applied to quill in one direction (probably downwards) to eliminate > backlash as much as possible. > > I found this thread about retrofitting an old RF mill/drill and he also > minimised backlash by reversing spring... > http://www.cnczone.com/forums/benchtop_machines/152240-hf_round_column_mill_drill_build.html > > > >> I am busy with mine at this very moment. What I did to overcome the >> quill issues was to remove the hand wheel and spring assembly and fit a >> motor with reduction directly to the shaft that turns the quill up and >> down. Mine has a very tight fit and no noticable backlash. The small >> hand wheel on the other hand was poor. I tried to use the spring to >> counter the backlash but it was not a good plan. >> I use nema 34 motors on the whole conversion. If you are interested, I >> could pass the design files on to you. >> > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Windows: > > Build for Windows Store. > > http://p.sf.net/sfu/windows-dev2dev > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Regards / Groete Marius D. Liebenberg MasterCut cc Cel: +27 82 698 3251 Tel: +27 12 743 6064 Fax: +27 86 551 8029 Skype: marius_d.liebenberg --- avast! Antivirus: Outbound message clean. Virus Database (VPS): 130621-3, 2013/06/22 Tested on: 2013/06/22 02:30:15 PM avast! - copyright (c) 1988-2013 AVAST Software. http://www.avast.com ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
