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MyPlasmaCutting.com by Fred Nelson Fabrication |
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High Capacity Bench Top Parts Tumbler assembly
Use this page for reference if you are building a tumbler from our CNC files. If you have not yet purchased the file, you can do so here: dxf files for sale
Material required: 11 ga. steel 12 x 48 inches. Scale: the large gear is 10.5 inches diameter
DRILL: Black and Decker 1/2 inch High Torque Heavy Duty Electric Drill (Home Depot or Amazon)
Bucket (Home Depot)
Lid
center cap is a plumbing 6 inch 'test cap' (Home depot). We
used a small bungee cord to secure the cap.
Bucket lid (optional). You can also use this 'screw-off' lid in place of the common lid and 'test cap' (above)
(4) 1 inch x 1/4 inch i.d. Nylon spacers (Home Depot) and (4) 2 x 1/4-20 carriage bolts, nuts and washers mount the large gear to the bucket. Center the gear carefully, use the gear holes to mark the bucket bottom for drilling the mounting holes.
Bucket bearing mount (base section, rear)
2 of Shepherd Hardware 9490 (or similar) 1-1/2-Inch Rubber Rigid Plate Caster, 40-lb Load Capacity Sold by: Amazon.com, eBay, Home Depot
Wheel mount (base section, front)
3 inch gear axle shaft* assembly Weld a 3 inch long x 1/2 inch diameter axle 1.125 inches from the end. *Use a 1/2 inch bolt shank, buy a long 1/2 inch bolt and cut off the head and threads.
Drive gear bearing mount. Use (2) 1/4-20 x 1 inch carriage bolts to mount this bracket.
Base. (2) 8 x 3/8 bolts, nuts or equivalent to connect the base halves together. < See this drawing for a bending guide.
Drill handle clamp, requires (2) 2 inch x 1/4-20 carriage bolts, washers, nuts. I drilled a hole in the 'direction' switch and inserted a key ring so I could pull on this switch.
Drill trigger lock. Requires (1) 2 inch x 1/4-20 bolts (no shank), and nut
Optional (improved) screw-off lid. Available at Home Depot
De-burring media. We have had good luck
with media from Harbor Freight mixed 50/50 with 80 grit sand
blasting sand (50% media mixed with 50% sand)
Capacity is not officially rated, however, the tumbler
is specifically designed for heavy loads. It can easily accommodate 50 large 3 inch x 3/16 steel parts (plus the
de-burring media).
REVERSE MECHANISM. The Black and Decker
has a reverse switch. Be sure the switch is fully engaged.
Chain Alignment tips video Video Link: https://www.youtube.com/watch?v=CTzVb5IQgD4
In this video, the tumbler is running at medium speed. We have found 60 rpm to be very effective for de-burring most steel parts. Video Link: https://www.youtube.com/watch?v=oh2kdAhk60I
Preparing the sprocket teeth Video Link: https://www.youtube.com/watch?v=HNkwTi2p_t4
Preparing the drive sprocket axle with a simple jig Video Link: https://www.youtube.com/watch?v=zXj9_iXzPJk
Preparing the axle for welding with a simple jig Video Link: https://www.youtube.com/watch?v=clIy4uzWyC8
Testing the tumbler. Video Link: https://www.youtube.com/watch?v=aFFZnqwFL2w Parts Shopping List:
Parts Photo:
QUESTIONS? email: MyPlasmaCutting@gmail.com CONTACT US ONLINE STORE PHOTO GALLERY PLASMA CUTTING CUSTOMER SUBMITTED PHOTOS DXF CNC CUTTING FILES Fred Nelson Fabrication. Azusa, CA 1999-present All Rights Reserved
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