BBQ pipe base...
So we picked up a BBQ at the scrap yard that looked like it was in acamp ground but rust got part of it, there were a few and we got the best one that just had rusted out bottom.
Cut out the rust, replaced and good, no photos of that.
Normally these are mounted to a tube that is planted in concrete, this one had the tube so good to go but do not want to concrete in the yard.
We have collected a few fire engine brake drums and a couple hubs so on a recent trip to scrap yard we scored a 1.25 inch thick torch or laser cut disk 9 inch diameter, perfect.
We chucked it lathe and with 3.5 inch hole Sal in tailstock with chuck pinned with key we cut out a slug.
Then bored out to fit tube leaving the last 1/8 inch at bottom for a bottom stop.
Gripped from inside and cut outside to round, still had the spot where the laser started but bondo will fill that.
The disk is too thick for the bolts so removed 1/4 inch, leaving a center hub that just fits inside the hub.
Could not find the data sheet for the hub, measured as 7 inch diameter bolt circle.
Had ordered a rotary table for this and other projects. Wonderfull tool.
Cut out a chunk of plywood and repeated same center hole and place in lathe.
Used pencil to mark to get a 7 inch circle.
Transfered to mill in rotary table, drilled 1/16 holes allow for matching the circle.
Used a 3/4 end mill to make the holes and test fit perfect.
Placed steel disc on table and used a 1/8 bit in collet only 3/8 long as spotter then worked up to 3/4 inch for the bolts, used a 3/4 end mill as final cleanup as the drill vs the rotary table with chuck on top was moving a bit.
The end mill insured holes were straight and on correct spot as it cuts on end so corrects and drill bit errors, did not cut much but it cut some.
Test fit is interesting, it will not go on the hub with the bolts in place but the bolts will go in if it is on the hub. Alignment is critical, bolts fit with little excess in the holes to unless perfectly level it does not align.
The last step was to drill a 1/4 inch hole from edge into center then drill about 3/4 of that to tap 5/16.
This will allow a 1/4 inch rod to be used to secure the tube with a 5/16 setscrew applying pressure.
The tube will be inserted in the disk 1.125 deep with a minimum clearance so no wobble there.
Will use some screw clamps with wax paper to create a mold for the hole along the edge.
Will fill with bondo then paint.
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