Lawn Trimmer Wheel

If you have a big lawn the lawn trimmer gets heavy. I added wheels to mine. Simple print in PETG, no bearings (at least in this version). Seems to be working so far. Maxes out the available space on a P1S - the wheels are 250 mm in diameter. The supports (white in the images) clamp on to the handle tube (mine has a 1-inch diameter tube). I added electrical tape to the tube for a better grip - to keep it from twisting. It uses 5/16-inch bolts which just fit into an 8 mm hole. Hardware required is as follows:

• Four 2.5 inch long 5/16-inch bolts - to hold the two halves of the support together
• One 5 inch long 5/16-inch bolt - the axle for the wheels
• Thirteen washers - I used ¼-inch washers which fit over the 5/16-inch bolts
• Five nylon lock nuts - the axle needs a nylon lock nut since it needs to stay in place without being pulled tight (so the wheels can spin). Nylon lock nuts in the support allow the two sides to be pulled together without excessive force. I tried not to crush the printed support.

I put a washer on each side of the support, each side of each wheel, and one between the two halves of the support on the axle.

Because there is a close fit between the bolts and the printed holes, the whole thing fits together without wobbling. The wheels seem to spin fine.