Soldering Iron Press for Threaded Inserts

This is model of soldering iron press for threaded inserts.For this stand I used an old 2 pc 8x370mm rods from my printer( rods have groves so were useless in 3d printer) and 2x LMU08 bearings.Parts were printed in Bambu Lab PET-G Basic Blue filament.Threads M4 in base and end cap was tapped in the material.In slider I used a M4 threaded inserts. Tap is to long to make the thread inside this hole. Used items:8x370mm steel rods from printer-2pcLMU08 berings -2pcTension spring 30mm long- 2pcFasteners used:Screws:M3x25mm Socket Head Screw- 2pcM4x8mm Socket Head Screw- 6pcM4x25mm Socket Head Screw- 2pcNuts:M3 Nylock Nut- 2pcM4 Nylock Nut- 5pcWashers:M3 washer- 4pcM4 washer- 8pcInserts:M4x8mm threaded insterts- 2pcMaterial:PLA, PET-G, ABS, etc.Layer High:0,3 or lower ( 0,2 will be good)Support needed under rib in slider.