Flat Belly Worm Vs Fully Round Worm

[bobsackamoto]

I'm normally fish a zoom 4 3/4 in finesse worm. It has a flat belly and I do well with it. I've started playing around with worm making and want to buy a. 2 piece injection mold. While shopping for one I found a 10 cavity round worm for 125.00. But the flat belly is 190. So I'm wondering why the difference in price. And rather the fully round worm would fish as well as flat belly. I use them on a shakyhead jig head

[Bluebasser86]

A flat worm will glide a little bit on the fall instead of falling straight to the bottom. No idea why one mold would be more expensive than the other though unless maybe one just is easier to pour than the other?

[smalljaw67]

I have 2 worms that I use when I'm finesse shaky head fishing, these are small worms, 1 is 4.5" and it has a flat side and the other is 5" and fully round and there are times when 1 is catching and the other isn't. Like Bluebasser86 said, the one with a flay belly will not fall straight down, it will have a bit of a glide to it, as for the molds, I don't see why one would be much more unless the cavity size is larger or one has more cavities, a lot goes into the price of the mold and it isn't just because one has a flat belly and the other is fully round.

[MikeinFresno]

I would think the higher price is due to the machine work to create a non-round item, more complex.

[JayKumar]

Yep, that's why flat-bellies are used more for dropshots -- they are more horizontal in the water....

[tomustang]

I would think the higher price is due to the machine work to create a non-round item, more complex.

Flat's the easiest way to mill on a mold or even repair mold work

[wnybassman]

A two piece mold for a flat sided worm means the two sides are different, meaning more design work involved.    A round worm will usually have mirror image sides, so it cuts way down on the design/programming time.

[MikeinFresno]

yes easy flat, but not a round end bit, an oval or flat end with rounded corners. Maybe moot and is the same amount of work to cut. I was thinking the cutter would be more complex to grind, but everything is mass produced nowadays

[hoosierbass07]

  These last few months I've been wondering why some of my plastic worms are flat and how to rig them with the hook.  So now I know - the flat bottom is supposed to go on the bottom/is the bottom of the worm, correct?  So when I Texas rig a flat bottom worm the hook point will be buried in the top round part.  

 

 I did not know the flat worms glide a little.  Cool.   

[gallowaypt]

^^^^^correct!

[WRB]

Flat belly worms are usually hand pours, not injection molded. The price difference with a injection mold would be related to the number of molds being sold, not the CNC machining.

Tom

[wnybassman]

Flat belly worms are usually hand pours, not injection molded. The price difference with a injection mold would be related to the number of molds being sold, not the CNC machining.

Tom

 

 

You can buy 2 piece injection molds for the trick worm in either the flat belly or full round version.   The flat belly isn't as flat as a hand pour, it does have a little curve to it, which is why it needs to be a 2 piece mold.

[WRB]

The round or flat curved belly are 2 piece mods when injected molded.

Bears Baits makes good home injection mold kits, check with them.

My guess is the injection mold folks want to get some of the hand pour business away from Roboworms, etc.

If you perceive a difference do to the flat vs round bodies, buy a set of each. I personally don't see an advantage, more to do with softness, floatation color, length and tail type...we have a lot of hand pours to choose from, no need to make my own.

I get my custom worms from Don Iovino and Josh Upton. Bears molds look good and I have heard good things about them.

Good luck.

Tom

[CWB]

As far as the mold, the programming time might be a tad more but the actual machining time would be less. Each half would start with identical geometry but the half with the flat bottom would not machine as deep or machine in any ribs etc. Been doing this kind of stuff for over 30 years. Why I didn't tinker with molds for baits is beyond me. On a shakey head, not to sure a flat bottom would make a great deal of difference. Probably moreso on a dropshot. Could be wrong though.

[RoLo]

As far as the mold, the programming time might be a tad more but the actual machining time would be less. Each half would start with identical geometry but the half with the flat bottom would not machine as deep or machine in any ribs etc. Been doing this kind of stuff for over 30 years. Why I didn't tinker with molds for baits is beyond me. On a shakey head, not to sure a flat bottom would make a great deal of difference. Probably moreso on a dropshot. Could be wrong though.

 

I agree.

Your post placed me back in the toolroom again with a dirty white shop coat 

 

Roger

[CWB]

I agree.

Your post placed me back in the toolroom again with a dirty white shop coat 

 

Roger

I think we gave away our ages Roger.

[RoLo]

I think we gave away our ages Roger.

 

Yeah, I thought about that.

 

Roger