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Update: As of 12/18/2020, the locking pins pack that is included with all bracketing systems WILL include the locking pins but NOT the two locking-pin-nuts. A survey of users found that 75% do not even use these little pin-nuts. I've made the pin-nuts available for purchase separately and will shift the labor put into making these towards other products instead.
For some folks no matter how they adjust their boot, screws, etc they still suffer from sliding boot syndrome.
In this video, you can see how bumping the boot or putting pressure in certain spots can cause boot slippage. This is exacerbated by an unsecured hose or brushes/boot running into high-profile clamps.
I've researched lots of different options and the one that I loved the most was the simplest to implement without buying a thing.
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Drilling a hole through the support arm & wing allows you to drop a screw in to lock the boot within the support arms.
In my experiment (left), i drilled from the top-down, but i'd recommend drilling from bottom up to ensure your pin is straight and perpendicular.
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Reattaching the wings to your boot and sliding the boot into place lets you drop the pins down and locking the boot within the arms.
This is a simple and rather elegant solution to a problem some of you are suffering from.
Word of warning though... locking the boot in place will not prevent damage caused by ramming the boot against clamps that are too high. Instead of the boot sliding out, something else will likely break with such an impact. If you have the steel brackets, likely the support arms will break. If you have acrylic or the HDZ's 3d printed track brackets this will likely break the track brackets themselves.
You should always know where your CNC commands will send your carriage and understand how that will affect the boot below.
Like many of my upgrades, this is optional for most but an absolute requirement for others considering their experiences with the PwnCNC boot thus far.
While you can perform the upgrade yourself, some folks would rather purchase it from me. For those folks, the "Locking Pins" upgrade is available on my webstore here: https://pwncnc.com/purchase?olsPage=products%2Flocking-pins-upgrade
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Stock Bracketing System Upgrade
If you have the Stock bracketing system with either Acrylic or Steel track brackets, this upgrade consists of the following items:
L & R Support Arms with Pin Holes
(2) Wings with Pin Holes
(2) Pin
(2) Pin Nut
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HDZ Bracketing System Upgrade
If you have the HDZ bracketing system with the 3d printed track brackets, this upgrade will consist of the following:
L & R HDZ Support Arms with Pin Holes
(2) Wings with Pin Holes
(2) Pin
(2) Pin Nut
When using your newly upgraded bracketing system you do not need to fully install the pins. Simply dropping the pin into place is enough to hold the boot securely. If you'd like that extra bit of security, screw on the Pin Nut to fully lock the boot into place.
If you're self-upgrading or purchasing this upgrade, I'd love to hear about your experiences in the Facebook PwnCNC Users Group: https://www.facebook.com/groups/2993800347512326
