Ok so I read every single post in the fateful SangMutan BLDC / Kelig thread from back in the day - and frankly - all the techno terms and "stuff" there were pretty far over this newbs head. That said, I want to upgrade the X2D's spindle motor AND be able to control it with Mach 3/4. The issue for me is most of this "tricity" jargon and electrical engineering stuff is a tad overwhelming for me... but I have confidence if I take it slow one bite at a time I can eat this elephent - I know there is much to be learned in this area over all when creating this cnc conversion and wiring all the needed components.
Some specs for what I'd like and some are needs...
1. Ive only currently got single phase residential power - my brother is a general contractor and we could readily push 220 on seperate circuit into garage if "really" needed - id prefer not
2. I want to cut alum 7075 without much trouble - pretty conservative DOC's and step overs and feed rates - Im not trying to impress youtubers with my baddassery just yet
3. I do want to be able to cut steel - even if I need to do it gingerly
4. One of my main focal points will be cutting titanium - small parts - mainly finishing up 2-3mm sheet projects that have been plasma cut already. countershink / trim / shallow pockets kinda stuff
5. Id like to keep it around $350-400 max [ motor / controller ]
6. Pretty much decided on a Treadmill motor as the upgrade
7. Ive sourced and am ready to pull the trigger on upgraded AC bearings for the spindle to deal with the desired RPM increases
8. Id prefer a treadmill motor that gets to 6000 RPM if I can - but will likely run at more conservative speeds
9. Id like to be able to TAP / Thread
10. Mach 3 control mandatory.
11. control will be a KBMM-125 with the reuqired mods and heat sink [ .006 ohm resistor and 25A fuses ] / heatsink. [ purchased already ]
12. Ive purchased a C11G + Ethernet SmootherStepper BOB/Motion control setup
Based upon Hoss' many videos - like these two - I think Ive narrowed it down to one of 5 potential motors. 4 can be had by making a phone call - the other is a NEW ebay special $110.00 Details follow.
Im hoping that some one here much more informed [ aka smarter ] can advise which of the 4-5 motors depicted here - or otherwise - would be my best option based upon the above 12 parameters ...
videos Im referring to: Credits - Hoss/HossMachine
#1 Treadmill Motor M-208012 - $39.95
SPECIFICATIONS
Power 2.0 HP
Voltage 130 VDC
Amperage 14.3 Amps
Speed 5650 RPM (Nameplate)
6175 RPM @ 130 VDC, No Load
Rotation Reversible
Enclosure OFC
Duty Treadmill
Mount Two 7mm Holes in Housing on 3" Centers
Shaft 17mm dia. x 48mm overall length w/ 1/2"-13 x 14mm long LH threaded end
Rear Shaft 16mm dia. x 26mm overall length
Size 10-3/8" x 6-3/8" O.D.
Shpg. 35 lbs.
#2 Treadmill Motor F-237595 - $45.95
SPECIFICATIONS
Power 2.25 HP (1678 W)
Voltage 130 VDC
Amperage 12.9 Amps
RPM 5135 RPM @ 130 VDC, No Load
Rotation Reversible
Enclosure OFC
Duty Treadmill
Mount Two 7mm Holes in Housing on 2-1/2" Centers
Shaft 17mm dia. x 44mm overall length w/ 1/2"-13 x 14mm long LH threaded end
Size 9-3/4" x 6-3/8" O.D.
Shpg. 23 lbs.
#3 - Treadmill Motor F-286340 $49.95
SPECIFICATIONS
Power 2.8 HP (2089 W)
Voltage 130 VDC
Amperage 16.1 Amps
RPM 4135 RPM @ 130 VDC, No Load
Rotation Reversible
Enclosure OFC
Duty Treadmill
Mount Two 7mm Holes in Housing on 3" Centers
Shaft 17mm dia. x 43.5mm overall length, Stepped down to 14mm dia. with 5mm keyway, End tapped 10-32
Size 11" x 6-5/8" O.D.
Shpg. 30 lbs.
#4 - Treadmill Motor M-234976 - $77.95
SPECIFICATIONS
Power 3.5 HP (2611 W)
Voltage 150 VDC
Amperage 20.1 Amps
Speed 4500 RPM @ 150 VDC, No Load
Rotation Reversible
Enclosure OFC
Duty Treadmill
Mount Two 7mm Holes in Housing on 3" Centers
Shaft 17mm dia. x 35mm overall length, Tapers from 17mm to 16mm in 24mm, End tapped 3/8"-16
Size 12-1/2" x 6-3/4" O.D.
Shpg. 34 lbs.
#5 - Treadmill Motor M-314571 - $99 + $10 shipping - NEW - Ebay This one looks to be the closest to the ones Hoss demonstrates in his video - well they LOOK the closest
Part number: M-314571
Model C3364B4035M
2.8 HP at 130 VDC
2.6 HP continuous duty at 110 VDC/1939 watts
Measures 11" from end to end
Im just really unsure these will get to the RPM and torque ranges that the unit in Hoss' videos did/will - appreciate your insight suggestions and knowledge shares.
Thanks to any and all that advise
- Steve in SoCal