Barbell Support Counterweight

I purchased Power Tower Workout Dip Station https://www.amazon.it/dp/B077S1G8FP?ref=ppx_yo2ov_dt_b_fed_asin_title on Amazon and then Pulley Lat Machine but the Tower tends to tip over. I then printed a weight holder so I have both a place to put the barbell and to balance the tower. Printed in PETG.