I really liked the idea of not having to drill holes through the maker slide on the 30 minute x-axis mod (https://discuss.inventables.com/t/a-30-minute-x-axis-mod-to-reduce-chatter) but thought I could take it to the next level. Rather than using washers to clamp the two rails together, I took a trip to the corner hardware store and picked up two pieces of flat bar aluminum. One piece measuring 1”x1/8”x48” and the second one measuring 3/4”x1/8”x48"
I cut the length of both bars to match the length of the Makerslide of my x-axis. Next, I stacked the 3/4" bar on top of the 1” bar, lining them up on one side so I could mark out and drill 8 evenly spaced holes measuring just over 4mm centered to the 1” bar. This put the holes in on the 3/4" bar offset to one side which is important to leave room for the x-axis belt and pulleys.
After painting them black I put the 3/4" bar on top of the x-axis rails and aligned the holes with the 1” bar on the bottom of the x-axis rails. I ended up having to cut 1 inch off each end of the lower 1” bar in order to install it without having to disassemble the x-axis. I then used 4mm x 50mm bolts and locking nuts to clamp the two bars together around the Makerslide.
The x-rail is super rigid now. There is no visible x-axis deflection in any direction when pressing on the rail or spindle.
Like the 30 min mod this version :
- stiffens the x-rail substantially in bending and twisting
- preserves the x-rail spacing for the v-wheels
- does not require dis-assembly of X-Carve
- does not require drilling the X-Carve
- adds little weight (much less than the steel bar mod)
- once home from the hardware store, this only took about an hour to construct and install.
- it does not damage the X-Carve rails and can be taken off at any time
- the cost as about $30 and all the parts were bought at Home Depot.