Z axis set screws are stripped

I attempted to install a new spindle on my elite and all the set screws strripped with one turn.
I am not sure how to fix or where to bu6y new screws if i can have someone remove the screws
can someone help us out with info>

Here is a post of common screw sizes for the Onefinity machines, not sure exactly which screws you’re referring to.

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if you have a local machine shop in your area, they can do what you want but it would probably be costly. Or if you have a community college with a machining dept they would probably do it for free. I would do it by drilling it out and putting in a press fit piece and re tapping it. just remember to use anti seize when you put it back together

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Did the hex side of the screw strip or the thread side? I had the hex side on one of mine get messed up from a poorly fitting hex wrench. to work around it i had to use a dremel tool with a cutting disc to convert the stripped hex head into a thin slotted head that i could then gently remove with a flathead screwdriver.

You can see the slot in this photo.

Hope this helps!

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Throwing my penny in the fountain with this.
Screw extractor to get the old one out, helicoil to re-thread.
Re-tapping is even better but if you cant do it, the helicoils require nothing special.

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if a hex screw is stuck in hard enough that the hex breaks out or strips. I doubt that making a slot is going to result in it being stronger than a hex socket and the tiny flat head screwdriver needed is unlikely to have the strength or torque to do any better. Just saying it is possible but unlikely.

Hey Richard,

Usually this only happens when you don’t use a metric keys set. In the USA, the Onefinity should be sold with one. Like we buy a inch key set when we import a Harley-Davidson.

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I’m guessing what stripped is the hex head itself. Those alloy steel machine screws tend to be bound pretty tight in the aluminum plate. IMO a quality, correct sized hex key that fully engages with the hex head is essential; in other words, do not use a ball-head hex wrench, and absolutely do not attempt to break them loose with a non-metric wrench. I use this set of of wrenches, which seems to work well, and makes it easy to put downward pressure on the screw head to keep the bit fully engaged.:

If the heads are completely stripped out it’s going to be complicated. The low-profile heads make it tricky to clamp on to the outside of the head with a Vise-Grip. Maybe wedging in a Torx bit might work. If they need to be drilled out, a set of left-hand drill bits come in handy and can often break them loose by themselves.

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This is a good topic for those expecting machines soon. 1F is notorious for over-tightening some of the pre-assembled parts. I would highly recommend that you go through and check EVERYTHING before assembly. Get some anti-seize in there and re-torque to a reasonable spec, NOT like an assembly worker with a power tool. Make a habit of checking all your set screws, bolts, nuts, EVERYthing, during cleaning and maintenance. Especially in the beginning after the machine has had a chance to jiggle around and settle in.

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