A spud bar or ice chisel is commonly used in ice fishing to check the thickness (and therefore assess the safety) of the ice upon which one will be fishing. These devices, especially the full-sized versions) are quite heavy, and the chisel end (sharp end) can cause injuries or equipment damage. While most manufacturers include a cover, they are easily lost or broken. Here's a replacement.
I've included a “Retainer” which consists of a modeled nut and bolt that can be printed, as well. They are chunky and oversized to make them easier to grip with gloves on.
The file you'll find here was designed specifically to fit the spud bar that I happen to own. However, because there are many variations, I've included a “parametric” Fusion360 model. Check out this blog post for more information about Parametric modeling in Fusion360. Follow the directions below to make one that fits your chisel perfectly!
To customize this file to fit your spud bar or ice chisel, you'll need to record a few measurements:
Refer to the diagram below when making your measurements.
Open the SpudCover.f3d file in Fusion360 and select Change Parameters under the Modify menu. Enter the measurements you obtained above in the Parameters dialog box.
There is also a CoverThickness user parameter that you can experiment with. I've used 3mm and been happy with it. Theoretically, you should be able to make it as thick as you want since the “shell” in Fusion360 happens on the outside of your spud bar (based on the dimensions you enter).
I've also added ThreadClearance and ChiselClearance parameters.
Probably best printed with PETG for flexibility/durability, but the prototype was printed in PLA and is being actively used.
It can be printed without supports. I have printed it both with and without a brim. I didn't find it necessary. Print with the open end down on the print bed.
I've had luck with the following print settings, but feel free to experiment (and post a Make and/or Comment if you have feedback):
*I added a modifier in Prusa Slicer and did 100% infill in the shaft and threads of the bolt for durability.
Your spud's original cover is likely more flexible than PLA or PETG. There's a good chance this version won't last as long. Use at your own risk.
This model is part of the still-small-but-growing Ultimate Ice Fishing Collection.
The author marked this model as their own original creation.