How to Cut an Oval Thumb! | Full Pro Shop Tutorial!

[@memorosales7135]

great job. wish more proshop would have digitals. most dont believe in them .

[@jimmypinaula4087]

Love this video. Waiting on how to do the taper cut.

[@kadenmcdow3702]

Thank you soooo helpful, I’ve been waiting for this video!!! Also, is a video possible to show how to drill an oval with the Ferrari jig and how the table moves horizontally?

[@spectrebowling]

sounds good, thanks for the video idea. The basic principles are the same. Spectre has a setting where you can calculate H only, so the process is rather similar

[@xmetaldome]

Please can you tell me which camera and mic you are using for your youtube videos?

[@Bszp5413]

How does the ball not move when you are drilling? It’s not clamped down, is it a vacuum chuck?

[@spectrebowling]

Yes, this is the Jayhawk JayVac press and uses a vacuum to pull the ball down.

[@oldtechuser]

I like a round thumb hole. I know that my thumb is not round, but my thumb is flexible enough that it seems to adapt to the round hole, and I get a suction that I like. If it's too snug, I use a dab of Chap Stick on sides of joint and works perfect in getting out of ball. I also am a fan of a tapered thumb slug. Almost like a molded thumb. Keep it simple.

[@tonygodinho6815]

Great video Mark, how do you add a cut at the desired degree if your oval didn't come out to the correct width from the bit walking? mine always seem to be undersize and i have no slop in my chuck.

[@markbuffa5840]

Hi Tony. Easy answer would be to change the drill bit on the oval width until it matches what works for you and your client. We now have the oval width in thousands as well in the settings, this might help you out. It's hard for me to answer that questions since your press is moving a bit, I can't answer if the displacement is consistent from ball to ball/surface to surface. Like I said, the easy answer would be to play with the oval width value.

[@tonygodinho6815]

@@markbuffa5840 ok that makes sense. thanks for the reply.

[@tonysanta3497]

If you have to pound it or force the slug in, the ball with split down the line.

[@TheFizzster]

I'm looking for that video on you showing how to measure ovals, is it possible to get it linked?

[@spectrebowling]

thats the next video we're rolling out

[@spectrebowling]

Hi Fizzster, we just posted the video explaining how to measure. Thanks ;) kzbin.info/www/bejne/gnXVkKVrn65onK8

[@jimmypinaula4087]

How do you determine a half cut and how is this done?

[@spectrebowling]

Hi Jimmy. It’s hard to describe over text. Basically you see if there is a bump on either side of the thumb joint. If your total thumb move is v.100/h.100. Then the half back cut v.100/.050. Basically adding a cut at the end, at the same height but half the horizontal movement. I’ll shoot a video about that. Thanks for the idea.

[@jimmypinaula4087]

@@spectrebowling thanks for the reply. Can’t wait for the video.

[@curtokay8046]

why do they use a plug,instead of just drilling the ball

[@njavrg.9100]

Some players have interchangeable thumb plugs so they’d only need one for all of their bowling balls. All you’d have to do is quick switch and keep playing :) So if you swap from your main ball to spare ball, you wouldn’t need 2 plugs just one and it fits your thumb perfectly

[@electrician240]

Why did you attend the pro shop training school at innovative? You seem like you could be hosting your own classes.

[@markbuffa5840]

We’re a dealer for Innovative in Canada and I’ve always wanted to see how John and his team run the class. I had the privilege to be part of the instructor team with Cecil at he class and look forward to working in the future with them. I’m presenting at the IBPSIA conference in Denver on Sunday as well.

[@markbuffa5840]

And I do host the IBPSIA HOTS classes in Montreal Canada. We do 4 classes a year.

[@electrician240]

@markbuffa5840 Good to know. I hope to attend one of those classes. I have a question. If you're drilling an oval, would this eliminate the pitch you would put in the ball? If not, how would you drill an oval with pitch?

[@markbuffa5840]

@@electrician240 watch the video again, we mention it at 3:57. The example uses 3/16 reverse as a starting pitch. Basically your first step is that you put the pitch on the machine. Everything is relative to that starting point.