Powerfist (Princess Auto) Deflection (Dial) Gauge Holder

by Fastrack, published

Powerfist (Princess Auto) Deflection (Dial) Gauge Holder by Fastrack Aug 17, 2012


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This is used to level the HBP on a Makerbot Replicator. Holds a Power fist 2.25" Deflection Gauge (.375" center mount) & 4 Rare earth magnets (8mmx3mm). Both are available from Princess Auto in Canada Gauge #2970986 - $18.99 & Magnets #8183915 - $2.49. When fully inserted there's only about 2.5mm pressure on the gauge spring, so the HBP does not deflect.


Printed at .27, 15% infill, 1 shell. Default Speed.

Insert the Deflection Gauge into the holder until it's flush with the bottom. Home your Axis, position the nozzle just in front of the right-back screw. Use your piece of paper or feeler gauge. Place the gauge on the carraige rods, it can easily slide around on the rods! Adjust until you get zero everywhere :)

I based this off of Heathzaps tinkercad object, as his applied too much downward force on the HBP and my gauge or magnets did not fit.

I also extended the area downwards around the rods so it does not move when moving it around.

Original Tinkercad object:

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FYI, the Harbor Freight's 'Pittsburgh 1 In. Travel Machinist's Dial Indicator, item#623' (http://www.harborfreight.com/1-inch-travel-machinists-dial-indicator-623.html) will fit this holder and the holder will sit on the FlashForge Creator Pro's rods/rails perfectly. I can't attest for accuracy yet as I haven't bought the magnets yet. The gauge pushed the holder and itself up slightly without the magnets.

Check out the remixes if this holder isn't working for you.

Yeah with the magnets it will work perfectly :) I also found you want to limit the amount of compression on the dial indicator spring, ie I usually do a few rotations of the needle, and have the needle close to 12 o'clock. Reset it to zero and go.

Thanks for your advice! Will try it.

I like this one, but I have a prusa mendel i2, can i get it to work?

I don't have one.  But based on the pictures I just saw.  If you measure the Center to Center of the carriage rods, it could be modified to work forsure.  If you don't know how to use Tinkercad let me know and I can fire something up for you!

Just bought one of these from PA today.  Thanks!

As per the description... From Princess auto as well!  It's a pack of 10 - 8mm x 3mm magnets.  Only $4.99 too

 Derp!  Thanks!