Thumb Slug Gap
Moderator: Moderators
-
- Member
- Posts: 84
- Joined: February 7th, 2014, 12:15 am
- Location: DeSoto, IL
Thumb Slug Gap
Hey all - long time no see
Recently purchased a new ball and noticed a small gap between the slug and coverstock. Asked my driller about it who said it was OK but I think he thought I was asking about the groove in the slug. Could this cause any issues down the road? All my other balls have no noticeable gap around the slug so I'm not sure how a gap like this could even happen.
I'd hate to have to have it redone since Mo himself carved the thumb oval and the difference in feel vs a round hole is amazing.
Recently purchased a new ball and noticed a small gap between the slug and coverstock. Asked my driller about it who said it was OK but I think he thought I was asking about the groove in the slug. Could this cause any issues down the road? All my other balls have no noticeable gap around the slug so I'm not sure how a gap like this could even happen.
I'd hate to have to have it redone since Mo himself carved the thumb oval and the difference in feel vs a round hole is amazing.
You do not have the required permissions to view the files attached to this post.
- stevespo
- Member
- Posts: 584
- Joined: August 11th, 2014, 8:07 pm
- THS Average: 225
- Positive Axis Point: 5.75" x + 3/8"
- Speed: 17+ off hand (camera)
- Rev Rate: 375
- Axis Tilt: 12
- Axis Rotation: 45
- Heavy Oil Ball: Phaze II, Altered Reality
- Medium Oil Ball: IQ Tour Nano, Zen, Phase III
- Light Oil Ball: Electrify Pearl
Re: Thumb Slug Gap
I would fill the gap with medium viscosity CA (superglue). Possibly mix some epoxy and thin it down slightly with alcohol. Just to improve the contact and make sure it doesn't come loose.
Not sure how the gap happened, but sometimes bits wander and create oversized holes.
Steve
Not sure how the gap happened, but sometimes bits wander and create oversized holes.
Steve
16 mph (14-14.5 on monitor), 375 rpm, PAP 5 1/2 x 3/8 up, AT: 12*, AR: 45*
Re: Thumb Slug Gap
I'm not a driller so I can't say for sure what happened or if it will be a future problem, but it appears to me like your driller had a bit of drillbit deflection while drilling your thumb hole, causing part of the hole to be larger/ovaled out a bit.
Also, I would suggest you look into having a custom slug mold made from that slug if you like it that much...that way you can have the exact same fit in the next slug that gets put in a ball...or use that mold to have a custom switch-grip type slug made for you.
Also, I would suggest you look into having a custom slug mold made from that slug if you like it that much...that way you can have the exact same fit in the next slug that gets put in a ball...or use that mold to have a custom switch-grip type slug made for you.
PAP 5x1 1/8
15.5mph off hand
260-270rev rate
7* tilt
70* rotation
15.5mph off hand
260-270rev rate
7* tilt
70* rotation
- MegaMav
- Moderator
- Posts: 4694
- Joined: April 27th, 2007, 5:00 am
- THS Average: 225
- Sport Average: 200
- Positive Axis Point: 5.5 Over & 1 Up
- Speed: 16.0 MPH - Camera
- Rev Rate: 375
- Axis Tilt: 14
- Axis Rotation: 45
- Heavy Oil Ball: Radical - Informer
- Medium Oil Ball: Brunswick - Fearless
- Light Oil Ball: Radical - Bonus Pearl
- Preferred Company: Radical Bowling Technologies
- Location: Malta, NY
Re: Thumb Slug Gap
It would be wise to get a mold of it before the thing shatters.Bowlin4Beers wrote:I'd hate to have to have it redone since Mo himself carved the thumb oval and the difference in feel vs a round hole is amazing.
I have yet to meet someone that can shape like Mo.
Hes like a plastic surgeon.
- snick
- BCU Graduate Layouts
- Posts: 759
- Joined: August 31st, 2014, 8:00 pm
- THS Average: 196
- Sport Average: 180
- Positive Axis Point: 5.5625" x .625 up
- Speed: 17 off hand
- Rev Rate: 360
- Axis Tilt: 17
- Axis Rotation: 55
- Heavy Oil Ball: Storm Physix
- Medium Oil Ball: Storm Streetfight
- Light Oil Ball: Rotogrip Hustle Pearl
- Preferred Company: Rotogrip
- Location: Tucson, AZ
Re: Thumb Slug Gap
Slugs vary in diameter, even from the same manufacturer.
Benchmark Bowling Pro Shop
Byron
RH
PAP: 5.5625 x .625 up
REVRATE: 360
SPEED: 17mph at release
AR: 55º
AT: 17º
Byron
RH
PAP: 5.5625 x .625 up
REVRATE: 360
SPEED: 17mph at release
AR: 55º
AT: 17º
- VLe
- BCU Graduate Layouts
- Posts: 196
- Joined: April 15th, 2015, 7:07 am
- Speed: 17
- Rev Rate: 320
- Axis Tilt: 20
- Axis Rotation: 55
- Preferred Company: Radical
- Location: Finland
Re: Thumb Slug Gap
A dull drill bit may cause this to the top of the hole. Especially if there is even little bit play on the machine. Its more noticeable with more pitch used in the hole. You can try to use some slice of paper or thin needle etc to see if you can measure if the cap is only in the surface.
I doubt that this assymmetric hole goes very deep plus its not on the gripping side. Most likely you will be fine. If it were my ball, i would take a mold of it and then try to fill the cap as were mentioned earlier only to get a peace of mind when throwing the ball.
I doubt that this assymmetric hole goes very deep plus its not on the gripping side. Most likely you will be fine. If it were my ball, i would take a mold of it and then try to fill the cap as were mentioned earlier only to get a peace of mind when throwing the ball.
Right Handed
PAP 4 3/8" x 0"
60* rotation
17.5* tilt
320-360 rev rate
17mph off hand
PAP 4 3/8" x 0"
60* rotation
17.5* tilt
320-360 rev rate
17mph off hand
-
- Member
- Posts: 84
- Joined: February 7th, 2014, 12:15 am
- Location: DeSoto, IL
Re: Thumb Slug Gap
MegaMav wrote:
It would be wise to get a mold of it before the thing shatters.
I have yet to meet someone that can shape like Mo.
Hes like a plastic surgeon.
That's definitely the plan when I go up Tuesday for some coaching. Mo worked the new ball and then they copied it for my other balls. The lanes were packed that day so I wasn't able to try them out to see which one fit the best for molding. I'm not surprised that the ball Mo did is the best of the three.
I never met him before then. I knew he'd be there when they got the ball in so I was looking forward to meeting him...never expected him to walk over and starting drawing lines on my thumb with a pen to show me why he was doing what he was doing. I had tried a straight oval before and hated it but he explained that I'm not a total oval nor am I round.
His commentary was hilarious so that was a bonus. Not PG rated at all
I've been reading up on molding the thumb and saw several comments about them coming loose due to how they're made/installed hence my worry. I was able to get a thin strip of paper about 1/2" down before meeting resistance. I think I like the thinned epoxy idea to lock it in.
- Viper
- Member
- Posts: 355
- Joined: March 14th, 2012, 3:36 am
- THS Average: 199
- Sport Average: 172
- Positive Axis Point: 5 x 1/2 up
- Speed: 15 at the foul line
- Rev Rate: 315
- Axis Tilt: 15
- Axis Rotation: 45
- Medium Oil Ball: 14 lbs. Hammer Raw Orange/Black Hybrid
- Location: Short Pump, VA
Re: Thumb Slug Gap
MegaMav wrote:
It would be wise to get a mold of it before the thing shatters.
I have yet to meet someone that can shape like Mo.
Hes like a plastic surgeon.
Concur strongly with MegaMav's recommendation. I, too, have a custom-carved-by-Mo thumb slug. I immediately had a mold made of it. I subsequently moved to a Turbo Switch Grip system for my thumb and it's easy to have a slug made from the mold and glued into the system's inner-sleeve. Keep in mind that I have been told that a mold is only good for maybe six castings so don't dispose of the ball with the original carved thumb slug.
Viper/Joe
Left-handed
PAP 5 x 1/2 up
Tilt: 15*
Rot: 45*
Rev: 315
Speed: 15 at the camera
PAP 5 x 1/2 up
Tilt: 15*
Rot: 45*
Rev: 315
Speed: 15 at the camera
-
- Trusted Source
- Posts: 3432
- Joined: January 31st, 2010, 1:04 am
- Positive Axis Point: 15 15/16 x 3/16
- Speed: 13.5 (Qubica)
- Axis Tilt: 13
- Axis Rotation: 45
- Location: Hawesville KY/Tell City IN
Re: Thumb Slug Gap
If the slug is glued securely down in the hole the small gap isn't a problem. If you have any doubts get your driller to mix up a small amount of plug and drip it into the gap.
The hole you're referring to is a vent hole to allow air to escape when the slug is inserted, all slugs have them and they continue the entire length of the slug. If the driller is careful not to block the hole with glue it also serves as a vent to help give a smooth thumb release (prevent vacuum). -- JohnPI doubt that this assymmetric hole goes very deep plus its not on the gripping side.
- VLe
- BCU Graduate Layouts
- Posts: 196
- Joined: April 15th, 2015, 7:07 am
- Speed: 17
- Rev Rate: 320
- Axis Tilt: 20
- Axis Rotation: 55
- Preferred Company: Radical
- Location: Finland
Re: Thumb Slug Gap
With the assymmetric hole I meant the top part of the drilled hole where the drill bit may have wobbled due to the reasons mentioned earlier, causing the assymmetric shape, not the vent groove in the slug. Sorry about my bad english.JohnP wrote: The hole you're referring to is a vent hole to allow air to escape when the slug is inserted, all slugs have them and they continue the entire length of the slug. If the driller is careful not to block the hole with glue it also serves as a vent to help give a smooth thumb release (prevent vacuum). -- JohnP
Right Handed
PAP 4 3/8" x 0"
60* rotation
17.5* tilt
320-360 rev rate
17mph off hand
PAP 4 3/8" x 0"
60* rotation
17.5* tilt
320-360 rev rate
17mph off hand
-
- Trusted Source
- Posts: 3432
- Joined: January 31st, 2010, 1:04 am
- Positive Axis Point: 15 15/16 x 3/16
- Speed: 13.5 (Qubica)
- Axis Tilt: 13
- Axis Rotation: 45
- Location: Hawesville KY/Tell City IN
Re: Thumb Slug Gap
OK, simple misunderstanding. -- JohnP
-
- Member
- Posts: 84
- Joined: February 7th, 2014, 12:15 am
- Location: DeSoto, IL
Re: Thumb Slug Gap
Question on the molded thumbs....what material is used for the actual slugs and how do they compare to regular Vise urethane slugs as far as feel?
-
- Member
- Posts: 84
- Joined: February 7th, 2014, 12:15 am
- Location: DeSoto, IL
Re: Thumb Slug Gap
Neither. A bit of both and something in between.ChrisTan wrote:Is the picture of the thumb hole by OP a round or Oval ??
-
- Member
- Posts: 142
- Joined: August 26th, 2015, 5:56 am
- Positive Axis Point: TBD soon
- Speed: TBD soon
- Axis Tilt: TBD
- Axis Rotation: TBD
Re: Thumb Slug Gap
Im even more confuse now lmaoBowlin4Beers wrote:
Neither. A bit of both and something in between.
Chris
-
- Member
- Posts: 84
- Joined: February 7th, 2014, 12:15 am
- Location: DeSoto, IL
Re: Thumb Slug Gap
ChrisTan wrote:
Im even more confuse now lmao
It's not a true oval. Can't remember how Mo put it exactly but ovals didn't work for me before because my thumb isn't completly oval. It's not round either hence the custom shaping he did.
- MegaMav
- Moderator
- Posts: 4694
- Joined: April 27th, 2007, 5:00 am
- THS Average: 225
- Sport Average: 200
- Positive Axis Point: 5.5 Over & 1 Up
- Speed: 16.0 MPH - Camera
- Rev Rate: 375
- Axis Tilt: 14
- Axis Rotation: 45
- Heavy Oil Ball: Radical - Informer
- Medium Oil Ball: Brunswick - Fearless
- Light Oil Ball: Radical - Bonus Pearl
- Preferred Company: Radical Bowling Technologies
- Location: Malta, NY
Re: Thumb Slug Gap
Might be a cone or trapezoidal thumb.
-
- Member
- Posts: 176
- Joined: September 18th, 2010, 2:16 pm
- THS Average: 200
- Location: Nerviano -Italy
Re: Thumb Slug Gap
Who the hell told you this! I have molds made with silicone 50 shore and even dental silicone 32 shore ( Exactacator white silicone is way too soft... may be 24 shore or less) that can last for making thousand of casting.Viper wrote:..................... Keep in mind that I have been told that a mold is only good for maybe six castings so don't dispose of the ball with the original carved thumb slug.
Viper/Joe
-
- Member
- Posts: 84
- Joined: February 7th, 2014, 12:15 am
- Location: DeSoto, IL
Re: Thumb Slug Gap
I had also heard that as well and asked my driller about it. He said they're good for hundreds of molds.
The two molded balls are slightly larger than the original but the shape and overall feel is the same. The original needs to be opened up a bit on the back anyway. It's been much warmer here lately and was very warm last night at the lanes. I was forced to use the handkerchief trick about every other shot.
The two molded balls are slightly larger than the original but the shape and overall feel is the same. The original needs to be opened up a bit on the back anyway. It's been much warmer here lately and was very warm last night at the lanes. I was forced to use the handkerchief trick about every other shot.