The GT-C circular restrictor is a custom developed replacement for the square or octagonal restrictor normally found in Sanwa JLF sticks. It does exactly what it sounds like; makes your joystick move in a perfect circle with no hangs up on corners, just smooth curves all around.
You can read this first post and see the steps as this was developed, but the project is completed. The production model GT-Cs have been made and are available from LizardLick.com for purchase:
You can also check out the installation video here:
These things turned out way better than I could have originally hoped for. The build quality is solid, edges are smooth, plastic is strong, and the color is pretty. The size of the restrictor circle is at a perfect spot where the corners are not hard to find, but the maximum throw isn’t that big either. The diameter is actually less than could be made out of a modified octagonal or square gate, so if you’ve tried the hand mode circular restrictors in the past, the GT-C is a serious step up in many different ways.
As always, this is a fan created part. Sanwa doesn’t know about, care about, or endorse this. Plastic injection molding is rather expensive, so I must ask that if you like the one you get, please make sure to let folks know about. Enjoy!
I’m not very sure where, if anywhere, this idea will go. After accepting that an optical JLF board would require a custom milled mold for injection molding, I started thinking about what other things are needed by the community that need to be molded, and a circular JLF restrictor was the first thing I could see. I won’t talk about the second thing yet.
So I took some measurements and laid out a part, and had the college make me a few prototypes in different sizes:
It may be hard to tell, but there is a 0.7 mm different between each piece shown in the picture. I wanted to try out different diameters to see if I could find the best size to use if I were to ever make some.
I could make more using the SLA machine that these were made from, but the cost to run it comes out to about $10 each. Not bad for prototyping, but not so great of a price for production run. Getting them molded would make the ‘per unit’ cost less, but with a MASSIVE initial investment of about $6,000-$8,000 dollars to get the mold made, and that’s with a cheap mold. Doable, but only if I could seriously expect to sell 10k over the next couple of years, and I don’t think I’m that confident.
So, I guess I’m posting this up for two reasons. First off, if you’d be interested in one, please post up with a price you’d be willing to pay for one. Second, I could use testers to give an opinion of these prototypes I have. Testing them would involve me sending one of each size to you, letting you try them out for a week, and get back to me which size you felt worked best, and mailing them back, with me covering postage. If you’re someone I’ve worked with before and heavy in the community, I’d be willing to loan them out for the feedback. If not, please understand if I ask for a paypal deposit to refund when they’re returned.