Dual mount gear case/reverse mount for tight quarter drilling
Taps up to 1-inch/14 threaded hole
Develops up to 1600 pounds of drill point pressure with a 1-inch steel plate
Limited warranty, 30-day no-risk trial
Product Description This heavy duty unit is built for production drilling and will take the toughest drilling jobs. Model 4297-1 features an 11.5 amp motor with a No.3 Morris Taper Chuck. This two speed unit has 250 and 500 rpm, geared low for maximum torque. Use the larger 4203 adjustable base for this powerhouse, and no job is to large.
Product Description This combination unit features the 4203 adjustable position, variable speed base and the 4297-1 1 1/4in. drill motor. The electromagnetic variable speed adjustable base features solid state electronic switching and an 11in. drill travel. Adjustable position on this base makes lining up the bit easier and faster. All you need is a bit and you are ready to drill into any ferrous material 1/2 in. and thicker. U.S.A. Volts: 120, Speed (RPM): 250 – 500, Speeds (qty.): 2, Drilling Capacity (in.): 11in. drill travel, Chuck Size (in.): No.3 Morris Taper Chuck
I built this totally from scratch (except for the solenoid and switch) using no formal measurements and only using a drill press, a hack saw, screwdrivers, and wrenches. It took me about 10 continuous hours. It is running at about 150 RPM on 9 volts @ 600 ma.
On May 28, 2009, we posted a report stating that recent evidence suggests that “Mylow” (Jose Enrique [Ricky] Concepcion) of Chicago was lying from the beginning when he claimed that he had successfully replicated Howard Johnson’s all-magnet motor; and that he has never actually produced a single working unit. pesn.com Mylow posted this video (9abrikvphzu) on May 12, 2009. Here, Mylow uses a caliper to measure his old rotor and bearing assembly (which isn’t the one from Bob that he’s using later in the instructional video series, but is the one he’s had for years, and which he shows in earlier demo videos). His rotor disc has a thickness of 5.15 mm. The bearing assembly shaft has a diameter of 51.03 mm. The opening for the bearing has a diameter of 35.02 mm. The length of the shaft to where the hub is that attaches to the rotor disc is 60.09 mm. The base that holds bearing has a diameter of 76.21 mm. It is 15.59 mm thick. The shaft protruding from the base has a diameter of 14.86 mm. It’s length is approximately 18.5 mm I should mention that I talked to Mylow’s brother on May 6. He said that the bearing assembly portion was made from a 2″ square aluminum rod, which he lathed to its cylindrical shape. The stock material is used for making high speed turbo pumps. He bore out the aluminum with a vertical drill press, to make way for the bearing and base shaft. He said the aluminum disc is more shiny than the bearing assembly. He said the rotor disc was made from a sheet of …
Machining A Brushless Motor with a lathe and drill press. Just a quick slide show of some motor contsruction tips before I added a small milling machine to my hobby shop. John
Motor HP: 20. Motor Manufacturer: Milwaukee/Clutch. Drill Capacity: 10. Drill Capacity w/Spacer: 14
Extra-rigid precision-machined steel column for more accurate drilling.
42″ long x 2-7/8″ square column bolts securely to the reinforced base.
Built-in jackscrew provides stability for ceiling or wall bracing.
Gear track is bolted solidly to the back of column and is easily replaced.
Product Description Motor HP: 20. Motor Manufacturer: Milwaukee/Clutch. Drill Capacity: 10. Drill Capacity w/Spacer: 14 Extra-rigid precision-machined steel column for more accurate drilling. 42″ long x 2-7/8″ square column bolts securely to the reinforced base. Built-in jackscrew provides stability for ceiling or wall bracing. Gear track is bolted solidly to the back of column and is easily replaced.
