Cultivator setup / row spacing?

[RG1]

I tried the math...inside of tires are 36" outside 72" rows at 30" apart puts the plants within 3" of the inside of the tire. I'm running over the next row with the tire. Rows at 24" same issue. Rows at 36" inside of tires hits. Draw it up and you will see what I am saying.

I assume you have 17.5 x 24 R4 rears since you are claiming 36" inside and 72" outside. 30" rows will work fine if you are locked into fixed row widths. C-T-C of rear tires is 54", so as you said, straddle two plant rows or one 30" in between row, tires within 3" of each of plants at each side. Turn around and come back down with one tire in the same dirt row as it was on last pass, only with the tire 3" from the next row over that wasn't cultivated.

Or, if hand planting, use whatever size row spacing you need to keep you fairly centered with your tires in each inbetween row.

 

[Ford850]

Take the measurement from between the 2 rear tire centerlines, and divide by 2. In your case, the centerlines would be 54", which puts your row spacing at 27" to get 2 rows evenly spaced and the tires centered between rows. That's 4 1/2" from the row to the inside edge of the rear tires, and the same spacing from the outside of the tires to the next row. That makes it easier to keep centered while cultivating too.

 

[Ed of all trades]

Just buy an old farmall cub or super a and you would be all set.

 

[JMER817]

Just buy an old farmall cub or super a and you would be all set.

Thought about that....had one on the farm when I was younger.

 

[JMER817]

Take the measurement from between the 2 rear tire centerlines, and divide by 2. In your case, the centerlines would be 54", which puts your row spacing at 27" to get 2 rows evenly spaced and the tires centered between rows. That's 4 1/2" from the row to the inside edge of the rear tires, and the same spacing from the outside of the tires to the next row. That makes it easier to keep centered while cultivating too.

Possible! Not sure if I can get my rows straight enough though.