# Feedback on Written Instructions

**URL:** <https://forum.sienci.com/t/feedback-on-written-instructions/2716>\
**Category:** Our Resources\
**Created:** [March 22, 2021, 2:22pm UTC](https://forum.sienci.com/t/feedback-on-written-instructions/2716 "2021-03-22T14:22:48Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![tillig](https://forum.sienci.com/user_avatar/forum.sienci.com/tillig/32/1487_2.png) [@tillig](https://forum.sienci.com/u/tillig)\
**Post date:** [March 22, 2021, 2:22pm UTC](https://forum.sienci.com/t/feedback-on-written-instructions/2716/1 "2021-03-22T14:22:48Z")

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I put my 30x30 together using the written instructions rather than the videos and I ran into a few issues that might be reasonably easily corrected with some written instruction updates. I think it would have saved me some challenge.

1. On the [Y-Axis Rails page](https://sienci.com/dmx-longmill/y-axis-rails/) during the discussion of tightening the eccentric nuts on the Y gantry, it’s not obvious (or, it wasn’t to me at the time) that the v-wheels need to be snug on _both the top and the bottom of the Y axis_. Once I had the X/Y assembled, the weight of the XZ-axis gantry was enough to make the top v-wheels almost impossible to turn, but the bottom v-wheels weren’t even touching the Y axis rails. This became problematic for almost every step later - squaring things up during mounting, trying my first few cuts, etc.
2. On the [Drag Chains and Wiring page](https://sienci.com/dmx-longmill/drag-chains-and-wiring/) in the part where you mount the router - the written paragraph above the picture of the Makita router says to face the router power cable to the _right_ but the picture and caption show the router power cable going to the _left_. I gather this has changed due to the update in the dust shoe design, but the two instructions are inconsistent.
3. On [Table Mounting](https://sienci.com/dmx-longmill/table-mounting/)… as with [other folks](https://forum.sienci.com/t/how-to-square-up-the-gantry/2294/4), I, too, ended up mounting the machine in a parallelogram with one leg about 1/2" back, likely exacerbated by the v-wheel misunderstanding above, which caused all sorts of binding and challenges when trying to just run the machine forward and back on the Y axis. Having better squaring instructions up front would have saved me… well, frankly, a few hours of panic.
4. On the [Common Issues and Fixes](https://sienci.com/dmx-longmill/troubleshooting/#My_lead_screws_wobble_excessively), in the explanation of how to adjust the lead screw wobbling… it might be nice to know if _any_ wobbling is acceptable. My z-axis screw arrived not 100% straight so it does have a wobble to it, but it’s not anything I’d call “excessive.” Maybe 1mm up/down? Is that OK?

For a minute I thought I was a potential victim of the [problematic v-wheels saga](https://sienci.com/2020/08/11/the-epic-saga-of-the-v-wheels/) because the wheels (even after being tightened) come _really close_ to the center feet on the bottom, enough to leave tracks. I had to sand down a little on the feet to make the wheels clear without touching.

Finally, sort of related to the [maintenance page](https://sienci.com/dmx-longmill/machine-maintenance/) on tightening the anti-backlash and sort of related to machine design… I can’t actually _see_ how tight the screw in the anti-backlash nut is, and the threaded hole for the screw is _really tight_ so there’s not really a way to “feel” if I’ve got it too tight or not. I’ve already found that half a turn or so is enough to actually stop the axis from moving at all, so I unscrewed it enough to get things moving again. It’d be really nice if you could actually see what’s going on in there.

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**Author:** ![chrismakesstuff](https://forum.sienci.com/user_avatar/forum.sienci.com/chrismakesstuff/32/10759_2.png) [@chrismakesstuff](https://forum.sienci.com/u/chrismakesstuff)\
**Post date:** [March 24, 2021, 2:19pm UTC](https://forum.sienci.com/t/feedback-on-written-instructions/2716/2 "2021-03-24T14:19:37Z")

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Great feedback Travis 🤠 I think I’ll take some time on the resources today to tweak the wording since some of these I’ve been thinking about recently

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**Author:** ![chrismakesstuff](https://forum.sienci.com/user_avatar/forum.sienci.com/chrismakesstuff/32/10759_2.png) [@chrismakesstuff](https://forum.sienci.com/u/chrismakesstuff)\
**Post date:** [March 26, 2021, 9:53pm UTC](https://forum.sienci.com/t/feedback-on-written-instructions/2716/3 "2021-03-26T21:53:35Z")

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I completed new changes to the instructions today, including a diagram and explanation on mounting the machine parallel and square, as well as lead screw wobble, wording, and warning on Makita red button. Thanks for the feedback on this Travis 👍

You check the changes out live in the resources if you wish

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**Author:** ![tillig](https://forum.sienci.com/user_avatar/forum.sienci.com/tillig/32/1487_2.png) [@tillig](https://forum.sienci.com/u/tillig)\
**Post date:** [March 26, 2021, 10:31pm UTC](https://forum.sienci.com/t/feedback-on-written-instructions/2716/4 "2021-03-26T22:31:35Z")

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This is really great, @chrismakesstuff - thanks for the update!

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**Author:** ![chrismakesstuff](https://forum.sienci.com/user_avatar/forum.sienci.com/chrismakesstuff/32/10759_2.png) [@chrismakesstuff](https://forum.sienci.com/u/chrismakesstuff)\
**Post date:** [March 11, 2023, 2:27am UTC](https://forum.sienci.com/t/feedback-on-written-instructions/2716/5 "2023-03-11T02:27:29Z")

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