- Joined
- Oct 27, 2017
- Messages
- 5
Craigslist find, from a tool and die maker. A 1984 Enco RF-30 ( for $600.00) with the Rong Fu Z axis gear drive. The HFT 12 speed unit is a virtual identical copy, sans the Z axis drive.
This has a single phase motor wired for 120 VAC, that gets quite warm after 5 minutes. No reverse. So, upgrades will come along slowly... First is that the missing Z axis drive belt is available on ebay, so ordered ($12.00?) and installed it. Cleaning up and lube was second. Then, thought of rewiring from the 120 VAC 32 Amp to 230 VAC 16 amp, with a drum switch to provide reverse... But, have acquired a 3HP, 2.2KW Marathan VFD 230 VAC 3 phase four pole 1725 rpm motor, ($50, on Craigs List, in the mounting frame, with the variable belt pulley! That pulley sells for over $55, new!), and, with the variable width belt pulley, will use the 23/32nd inch width belt, and, a VFD box, such as this:
http://www.vfds.in/3-hp-vfd-single-phase-to-three-phase-vfd-260617.html
Your experiences and input will help me greatly! A question is have you done this? Would it be better to get a more powerful VFD electronic drive machine, such as one for a 4 HP 3KW motor?
Oh, he included that huge US made machinist vise, two sets of clamps/dogs, in their storage frames, two fly cutters, small and the big one, with 8 bits up to 6 inch, complete set of three chucks on R8/M2 shafts. Most are US and/or German/Belgian made, for an extra $200.00.
Yes, there are great bargains to be found! I have been an electronics engineer, Air Force trained, 1965 to 1985, taught AC power for installers, in GEEIA, and have been a commercial welder on the FMC plant lines. I am an FCC licensed Radio Amateur, rebuilt computers and set up private class rooms for latch key kids, in several schools, since 1997, running only the Linux and the BSD operating systems.
So, next was to order the speed indicators, which are LED readouts, with magnetic sensors, that sell for about $4.00 on ebay. I have 9 volt 100 ma
DC power transformers to power them. Then, will be installing Digital Read Outs on all axis, for best accuracy, though initial set up of the vise and column, will be with the 1" dial indicators on magnetic bases. Last but not least is to eventually install stepper motors and CNC read outs.
Thanks for this opportunity to learn new things!
This has a single phase motor wired for 120 VAC, that gets quite warm after 5 minutes. No reverse. So, upgrades will come along slowly... First is that the missing Z axis drive belt is available on ebay, so ordered ($12.00?) and installed it. Cleaning up and lube was second. Then, thought of rewiring from the 120 VAC 32 Amp to 230 VAC 16 amp, with a drum switch to provide reverse... But, have acquired a 3HP, 2.2KW Marathan VFD 230 VAC 3 phase four pole 1725 rpm motor, ($50, on Craigs List, in the mounting frame, with the variable belt pulley! That pulley sells for over $55, new!), and, with the variable width belt pulley, will use the 23/32nd inch width belt, and, a VFD box, such as this:
http://www.vfds.in/3-hp-vfd-single-phase-to-three-phase-vfd-260617.html
Your experiences and input will help me greatly! A question is have you done this? Would it be better to get a more powerful VFD electronic drive machine, such as one for a 4 HP 3KW motor?
Oh, he included that huge US made machinist vise, two sets of clamps/dogs, in their storage frames, two fly cutters, small and the big one, with 8 bits up to 6 inch, complete set of three chucks on R8/M2 shafts. Most are US and/or German/Belgian made, for an extra $200.00.
Yes, there are great bargains to be found! I have been an electronics engineer, Air Force trained, 1965 to 1985, taught AC power for installers, in GEEIA, and have been a commercial welder on the FMC plant lines. I am an FCC licensed Radio Amateur, rebuilt computers and set up private class rooms for latch key kids, in several schools, since 1997, running only the Linux and the BSD operating systems.
So, next was to order the speed indicators, which are LED readouts, with magnetic sensors, that sell for about $4.00 on ebay. I have 9 volt 100 ma
DC power transformers to power them. Then, will be installing Digital Read Outs on all axis, for best accuracy, though initial set up of the vise and column, will be with the 1" dial indicators on magnetic bases. Last but not least is to eventually install stepper motors and CNC read outs.
Thanks for this opportunity to learn new things!