Mauler drive sprockets s5 for tiger 1 tracks

drive sprockets version S5. I do not recall which version is on the videos.
these are meant to drive the 1/24 scale tiger 1 tracks, hard plastic individual links made by Tokyo Marui and later by VS tanks. these still can be fetched on ebay, they are still running the tool or selling left overs.
quality tracks, just snap on/snap off.

the issue I have with these sprockets is that they tend to slip if too rounded.
The clearance on the mauler hull requires GRINDING the inner ribs inside the upper hull to fit these wide tracks.

Also, give me time to find the proper spindles. finding the right amount of snugness took a few test prints with different tolerances.
Included is a place holder spindle. as shown in the video, you should be able to slide the entire sprocket assembly onto the tamiya 3mm hex shafts.
If it gets too tight before halfway STOP... use a small file to enlarge them or if you can, enlarge the hex hole very slightly in the file.

https://youtu.be/7u8xpD5IGBQ

https://youtu.be/x8DGifE9O94

I recommend SEALING the teeth with a quick brushing of acetone if using ABS.
there is no fillet inside the teeth and these will break if pressure is applied. reason is the track will not like a fillet there and will jump.
again, brush some acetone/ abs solvent (plastic welder, abs cement, etc..) a the junction to seal and fuse the area and you will be good to go.

PS: the track should not be squeezed between the two sprocket halves. rather than sanding the teeth, insert a shim between the halves. The track should slide in and fall off the sprocket effortlessly. It appears on the video that there is a visible gap at the junction, And I recall inserting a printed shim....

-