Customizable Circle Cutting Jig for Harbor Freight Trim Router

thingiverse

This is a customizable circle cutting jig for the $30 Harbor Freight trim router Item#61626. Rather than be a tool that can be used for any project, I just wanted to make something quick for the particular project I was working on, namely XL-S Encore speaker set. So the OpenSCAD file has these 6 circle diameter values in it. So I provide you the customizable scad file for you to modify to add the set of values you need for your project. If someone has the urge to modify this circle jig to make it a tool that can be used on any project, without having to print out a new one each time, that would be awesome and please let me know if you do so, so I can download and print. But as it is now, it only costs me 75 cents to print for the current job I'm working on. (I use the cheap $11.99 a roll filament from ebay.. excelevan.. cheapest color I can find lol). Works great as you can see in the photo. I spent 75 cents to print this (actually $1.50 because I had to modify a value by 1.01mm in the scad file to make it perfect, and print a second time). And it saved me like $40. Actually more than that because the Jasper 200 jig is $40 but only fits certain routers that cost like $100 and I only had this cheap $30 Harbor Frieght router. I think I saved something like $140 or so. So I don't care that this is a single use jig hah. Can print another for 75 cents for a different job. Any questions, please ask me in comments -- I'll answer. Note: since the router isn't that powerful, i.e. trim router, don't try and take off too much in one pass.. might take a few passes. Also, I got the 1/8" stainless steel guide pin 3/4" long from Ace Hardware for 67 cents. I printed at 100% infill. I don't know how 50% infill would hold up in comparison since there is a pin that needs to be tapped in with a hammer -- friction fit. EDIT: The manufacturer uses some sort of soft glue on the threads of the 4 screws that hold this plate on. Be gentle re-tightening them, just using pretty much finger muscles on the screwdriver so they don't slip on the threads. Also when removing guide pin (usually with pliers) make sure to hold the plate down so you don't cause the screws to pop out of the loose threads. I am thinking about just drilling out the holes on the top plate permanently attached to the trim router and securing the base plate (or this jig) to it by running small bolts through it and securing on the top with a nut and washer. I don't think it'd interfere with any jobs right? Need to think on this one.