i used the trion with the 15 euro circle cutter to make 70 cm radii. i just kind of put the matal rod together with a longer one with a self-build clamping mechanism that holds pretty tight (a square aluminum "pipe" with the to rods overlapping inside and machine screws pressing them towards the bottom of the "pipe").
the circles i cut were perfect.
turn the pendulum action to zero and check if you have to use a festool k blade (black, yellow, very sturdy but only half the size of a normal blade). But with a 150cm circle, you might not need it.
PS 300 EQ (Circle Cutter, Guide Stop), CTL Midi (Cleaning Kit), TS55 EBQ (1400mm, 800mm Guide Rails, SYS-FS 2, 2 FS-HZ 160, 2 FS-SZ 120 2 FS-SZ 300, Panther Blade, Universal Blade), RO 90 DX FEQ (selfmade SYS-STF 90), RO 150 FEQ (SYS-STF 150), paddle-style DF 500 Q Set (Domino Assortment Sys), OF 1400 EBQ (Circle Cutter, Guide Stop, Edge Guide), MFT/3 (Clamping Elements), CMS-GE, CMS-OF, CMS-TS55, CMS-PS300, CMS-LA, CMS-ST, CMS-VB, Fein MultiMaster 250Q (T-LOC Systainer, Plug-It-Pigtail), Bosch GBH-26 DFR, GWS 15-125 CIH, GHG 660 LCD, Dremel