In this review we will consider how you can make the feed mechanism for a homemade drill.
The author proposes to use a pulley and belt from the car (in this case — from the VAZ “Kalina”).
As the shaft mechanism supports a round rod with a diameter of 20 mm. in order to firmly put on it a pulley, will need bushing. The author has made the bushing out of the “shirt” from the wedge anchor with a diameter of 20 mm.
See also how to make your hands support rack with rollers — for easy handling of long workpieces.
Please note that the force from the shaft to the pulley mechanism will be transmitted through a body washer M20.
It will be necessary to drill holes and cut threads. Then securely fasten it to the pulley by screws M6 (optional used thread lock).
In the next step cut a suitable length piece shaped tube — this blank will be used as a guide.
Belt for pulley fasten the M3 screws to the profile 40*40 mm. Holes drill right through the belt, and cut in them a carving.
About such fasteners do not worry — the tops of these screws did not interfere with the movement of the toothed pulley.
Next, you will need to make bushings out of the “shirt” anchor with a diameter of 10 mm. They should be the width of the belt.
The prepared sleeve is worn on the M8 bolts between the bearings No. 18 (their dimensions 8х22х7 mm).
Side part make from sheet metal 3 mm thick. it is Extremely important that the holes on the side match, but because they need to drill to secure the sides together.
Guide homemade truck moves quite gently, without any noticeable backlash. Bearings definitely go along preferaby (on both sides of the strap), like on rails.
Details on how to own hands to make the feed mechanism for the drill press, you can watch the authentic video. Video source — YouTube channel “All by hand“.