paul delany
Registered

A curved point similar to this ho scale exampleDo you mean an ordinary point at the entrance to a balloon/reverse loop with 4 foot radius on the curve, or a curved point where the tightest radii is 4 feet?
doesnt exist for R1. your smallest option is the piko curved switch which is outer R3 and inner R2 (LGB Radius), so 8ft and 5ft.Hi folks would anyone have a curved point for a 4ft Radius loop ????like the ho scale example shown here .
doesnt exist for R1.
Ah yes, quite right, missed that. The question is are they looking for 4ft radius (8ft diameter) for the inner or outer curve? The Piko curved switch is R2/R3. Trainline make some that are R3/R5.LGB R1 is ~2' foot radius (actually 600mm) and not what the OP was asking for!
Ah thanks for that, I have a TL one that is a bit of a pain in the space, clearly a Piko one would suit me better.Ah yes, quite right, missed that. The question is are they looking for 4ft radius (8ft diameter) for the inner or outer curve? The Piko curved switch is R2/R3. Trainline make some that are R3/R5.
Put simply, Piko R3 will fit inside LGB R3 as double track.As so often I am confused. I've seen it stated elsewhere that Piko R3 = LGB R2 as stated by Diesel2000 above. However the LGB geometry chart states that LGB r" is 1560mm diameter = 780 mm radius. Piko's chart says their R3 is 921mm radius.
Could someone with a more geometrical brain than mine clarify the position?
Reason for asking is that I need a point to branch off a LGB R2 curve (so inner radius LGB R2) and have been hesitating over the cost of the Bertram Heyn solution at over EUR 200 ready made. I don't have the skills to assemble the kit.
Could someone with a more geometrical brain than mine clarify the position?