JMR or Light Speed Dimple Dies

[d0rifto]

ive heard much about Light racing Dimple dies, has anyone here used the JMR ones. or even the Mittler Bros. ones. thanks

http://www.jmrmanufacturing.com/dimpledies/index.html

[Trick-Tools.com]

We are a Mittler Bros. and JMR dealer. I have heard nothing but good things about both of them.

[65Chevy4x4]

I've used the JMR ones and they were very nice, and a lot better than another set I got, not sur eon the brand of the other set though. Also I get a set or Leduc Dimple Dies and they are as good or better than the JMR ones.

[SHERPA]

Shanes on here-! I got a quote from Trick tools, and bought the 9-pc
set............ these are the JMR's............ let me tell you one thing, the
quality of the machine work is outstanding. these dies are sooo close in
tolerance, that with just the light oil coating that is on them when they
arrive, they actually "stick" together.......... the machining is that close
and precise.......... I had no idea the set would weigh as much as it does.
I haven't had a chance to use them yet.

--Sherpa

[Trick-Tools.com]

Hey Sherpa, thanks!

[TRD]

I have used the Light Racing dies. They work very well.

[SHERPA]

Hey Shane.! You're welcome on the comments about Trick Tools.

You were gone on vacation when I actually placed my order...

So, thank your co-sales guy who gave me a 'price-match' dealio...

thanks again,

--Sherpa
The Tool Whore.

[Beat95YJ]

About a month ago, I bought a set of Light Racing dies as they were recommended to me by 2 friends that do fab work professionally. One of them works at a shop that sells JMR and not Light Racing. I have used in the last few weeks 4 of the 5 dies. They work great. I can definately see why TeenyCar is a dimple die addict.

[Vortec_Cruiser]

I found these, which go up to 6".
http://www.utopiamotorsports.com/home.php?cat=404
:)

[Randy]

We are a Mittler Bros. and JMR dealer. I have heard nothing but good things about both of them.


Thats funny because I bought the JMRs from you and told you that I was unhappy with them and you said tuff luck.:rolleyes:

[Flexy Flatty]

Thats funny because I bought the JMRs from you and told you that I was unhappy with them and you said tuff luck.:rolleyes:
Sooooooooo, you would be unhappy with them because... (INSERT REASON HERE).

Oh, btw, I bought the JMR's from Polyperformance and am happy with them so far. I have no experience with any of the other manufacturers, however, so I really can't comment on their quality with respect to their competitors.

[Randy]

Ok, I got pics of dimples I made with LeDuc dies and dimples made I made with my JMR dies. The first pic is of the Leduc dimples. they are on 10g matterial.

[Randy]

here is a pic of dimples I just make using JMR dies on some 14g matterial, much thinner and sould dimple easier. Notice how shallow the dimples are. They dont have a crisp brake line that makes the matterial more ridged. Both the dies sets used are 1/2".

[Flexy Flatty]

Interesting, mine produce similar results. I wonder how much it really affects the rigitity (the brake line that is).

[Brian1]

I have a set of the Light Racing dimple dies and I have no complaints about them. I have only used them on 14ga. steel so far and I am satisfied with the results.

[PARANOID56]

here is a pic of dimples I just make using JMR dies on some 14g matterial, much thinner and sould dimple easier. Notice how shallow the dimples are. They dont have a crisp brake line that makes the matterial more ridged. Both the dies sets used are 1/2".


can you do a dimple of each die on the same piece?

Thanks
Shane

[d0rifto]

yea i just bought the Light Racing ones from utopiamotorsports.com i got 5pc set for 290 at their shop in Long Beach area. really cool guys. i did a test sample an a piece of Al with the 1" die. looks nice. the dimple is more pronounced than the pic of the JMR one. but it might cause its Al?

http://img.photobucket.com/albums/v308/d0rifto/DCP_0646.jpg
http://img.photobucket.com/albums/v308/d0rifto/DCP_0645.jpg

[socalchef]

LSR makes some big ass dimple dies. too bad I can't hold a camera still, it's a lift holding a full size truck up, didn't think to take a closer look at the time.
http://abendig.com/gallery/albums/OffRoadExpoOctober8%2C2006/IMG_2243.sized.jpg

[PIG]

About a month ago, I bought a set of Light Racing dies as they were recommended to me by 2 friends that do fab work professionally. One of them works at a shop that sells JMR and not Light Racing.

FYI, both are now instock....


DIMEPLE DIE SETS (http://www.polyperformance.com/shop/home.php?cat=51)

[GOAT1]

I did a little comparison testing this morning. I have a full Leduc set and Light Racing set and borrowed a JRM set. The test was done with .100" (14 ga?) mild steel. I only did a 3/4" hole because that was the only common size between the sets I own and the JMR set we had in stock. One big difference between brands is that Light Racing only has 1/2" diameter hole increments, LeDuc and JMR both are available in 1/4" increments, but LR are available over 3", the others are not. Here are my results, the dimensions on the plate are the height of the flare and the material thickness.

http://www.pirate4x4.com/forum/attachment.php?attachmentid=268040&stc=1&d=1161029656

http://www.pirate4x4.com/forum/attachment.php?attachmentid=268041&stc=1&d=1161029656

http://www.pirate4x4.com/forum/attachment.php?attachmentid=268042&stc=1&d=1161029656

http://www.pirate4x4.com/forum/attachment.php?attachmentid=268043&stc=1&d=1161029656

The three do not vary by much but the Light Racing ones are the tallest, you can see that the dies have a steeper angle. For what we are doing any set will work fine. My first choice would be Light Racing, they have been designing light weight race vehicles for 20+ years and have pretty much written the book on flared holes, I have seen the full FEA reports for GM on flared holes that they have done. This truck was built 10 years ago and is still a competive trophy truck, all that sheet is around .040 4130.
http://www.pirate4x4.com/forum/attachment.php?attachmentid=268044&stc=1&d=1161030020

[TheBandit]

Thanks Drew for taking the time to test them and posting the results.

How do you usually cut the holes?

[GOAT1]

Thanks Drew for taking the time to test them and posting the results.

How do you usually cut the holes?

On custom stuff we usually use a hole saw, if I have a lot of holes to do I go to my friends shop and use the iron worker. On production parts the holes are laser cut with the rest of the part.

[TeenyCAR]

I have the L.R. dies and my only complaint is that they don't come in the 1/4" increments as mentioned before. My buddy Tim as the full set of JMR's and my only complaint with them is that they are so darn heavy in the larger dies since they have the centers in them. They seem to be fairly close but I too have noticed that my dies put a deeper dimple in the material. Don't have any experience with the LeDuc dies but they all seem aweful close. Nice comparison Goat.

[rokdog03]

wish i would have seen this before i bought my jmr's from polyperformance. would have gone with the light racing ones

[Big One]

Ok, here's a question for you guys, how do you dimple the big sheets? They won't fit in a press and I would think it would take way too much force to pull them together with a bolt and nut (especially on thicker material). The reason I ask about this is, I was wanting to build a headache rack for my dodge and I wanted to put flared holes in it so I can see through the rear window (thought it would give it a little bling). The only way I can think of so far is to lay the sheet under the forklift (20,000lbs.) and use a jack up against it. I hope there's a better way because this seems like it's gonna be really hard.

[Butler]

http://www.pirate4x4.com/forum/showthread.php?t=551328
I made this small press that will go about 8" in. You could definitely go way bigger. I also made a small draw together deal out of some 1 1/4" all thread I had lying around, two plate washers (1/4" thick) and it will do a 2" in 1/8" using a 3/4" drive socket wrench and a pipe wrench on the other side. It's not glamorous but it gets it done.

[bigsub]

Good stuff! So someone explain to me the rules about them not being effective on over 1/8th inch. I would think that it is proportional to the size of the sheet, that is to say, they would be effective on 1/2" if it was a big freakin piece. Why only one company offers bigger then 3"? Is 3" a magic number, where you should start putting multiple holes instead of bigger ones? But i think that would depend on gauge and material as well. I was thinking about trying to make some 10" posers in a large section of 3/16ths by just cutting the hole, welding a ring on the back side and then grinding it down. Should look good and add strength.

[JR]

here is a pic of dimples I just make using JMR dies on some 14g matterial, much thinner and sould dimple easier. Notice how shallow the dimples are. They dont have a crisp brake line that makes the matterial more ridged. Both the dies sets used are 1/2".
Hey Randy, I know this is old tech but I'm using it as an example.

I'm not pro or con any dimple die maker. Personally I think they are over used and glamorized to the point where you want to throw up.

But I do think that JMR didn't make dies to man handle and create crisp, deep dimples simply because they wanted their dies to be able to dimple .125" 4130.
Far as I know, they are the only manufactures that do it.

[bigsub]

Personally I think they are over used and glamorized to the point where you want to throw up.



You forgot the :barf: Just like JKs and sidexsides

[Azzy2000]

Where are the LeDuc dies sold? Google isnt much help.

[John-e Bravada]

I bought these http://www.irvansmith.com/scart/punches-hole-flares-c-3_54_55.html and they seem to work. I haven't dimpled anything over 14ga though. I also had to turn down the female dies so I could get the dimples closer together.

But they were cheap:shaking:

[Beat95YJ]

Well, I broke my .75 Light Racing die this week, and ordered a new one. It came today and now they are made in China. We will see how they last. Price is the same.

[masonmachines]

What is the best way to do large sheets where a press doesn't have the reach? Someone mentioned using a mechanical screw to pull the pieces together. How thick a material could you pull together with a impact gun turning a fine thread bolt?

[GOAT1]

What is the best way to do large sheets where a press doesn't have the reach? Someone mentioned using a mechanical screw to pull the pieces together. How thick a material could you pull together with a impact gun turning a fine thread bolt?

Press Brake

[SHERPA]

unless JMR changed their design, you can't do what you're mentioning since
their die are solid. no thru-hole.

--Sherpa

[Murfman1967]

Well, I broke my .75 Light Racing die this week, and ordered a new one. It came today and now they are made in China. We will see how they last. Price is the same.

How did you break it?

[Murfman1967]

What is the best way to do large sheets where a press doesn't have the reach? Someone mentioned using a mechanical screw to pull the pieces together. How thick a material could you pull together with a impact gun turning a fine thread bolt?

I will post up some pics tomorrow, but I made my own dies, and drilled and tapped them with a 7/16" Fine thread and used a Grennlee Hydraulic knockout tool

http://www.mygreenlee.com/Products/main.shtml?greenlee_category_id=2&product_category=148&adodb_next_page=1&adodb_next_page=2&adodb_next_page=3&adodb_next_page=4&adodb_next_page=5&portalProcess_2=showGreenleeProductTemplate&upc_number=34293

The greenlee uses an eight ton ram and can punch a 2.4" hole in 10 Ga steel, I gave not tried to dimple that big of a hole, but it seems to me that it takes much less pressure to dimple the steel than punch a hole in it.

I made my dies in the conduit knockout sizes, as the knockouts are much easier to find in the conduit sizes, + that is what I have around here.

As to the impact wrench, the only worry I'd have is the die spinning during the process, marring or scratching the material. If I were going to try it, Id use a bearing similar to the ones Greenlee uses on their manual knockouts
http://www.mygreenlee.com/Products/main.shtml?greenlee_category_id=2&product_category=142&adodb_next_page=1&adodb_next_page=2&adodb_next_page=3&adodb_next_page=1&portalProcess_2=showGreenleeProductTemplate&upc_number=00042

I think this would not only make it easier on the workpiece, it would also make it easier to turn the drawstud giving you that much more leverage to pull the dies together.

[masonmachines]

unless JMR changed their design, you can't do what you're mentioning since
their die are solid. no thru-hole.

--Sherpa

It looks like the ones posted earlier on this page have a hole. Either way, I didn't think about the spinning issue.

[Rowdie]

No need to make your own. This site has the knockout punch and the flare set together that fits the greenlee

www.irvansmith.com/scart/punches-punchflare-combos-c-3_54_57.html

only problem its a 20 gauge capacity for flares.

Not sure of the gauge rating on these.

www.irvansmith.com/scart/hole-flare-p-397.html

and fits the Harbor Freight Hydraulic punch

www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=96718

and your pretty much set.

Also a air/hydraulic pump would make it pretty painless any where.

www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=98318

[95geo]

We are a Mittler Bros. and JMR dealer. I have heard nothing but good things about both of them.

Thats funny because I bought the JMRs from you and told you that I was unhappy with them and you said tuff luck.:rolleyes:



anyone want to buy a 7 piece JMR dimple die set?

[1TON73K5]

I purchased a set from the same person/company..... I made one dimple with each die to test them out, and I am not happy with them. I talked to Van Sant and they said because they are "used" they will not take them back. Keep in mind that there is not a single mark on them and you cant even tell they were used.

Now I know how you feel when you got "tough luck" when trying to return a product that you are unsatisfied with.... Van Sant got my last dollar with that sale.

anyone want to buy a 7 piece JMR dimple die set?


Thats a load of crap if thats how they do bussiness. I have looked at there site and stuff and would have bought from them, But NOT if thats how they are. I was pissed when I got my Light Racig Dies and read on the package "made in China". As long as they work, cool, but again, what a bunch of crap. I'm sick if crap from China. I wont buy from them again for any reason.

[Trick-Tools.com]

I purchased a set from the same person/company..... I made one dimple with each die to test them out, and I am not happy with them. I talked to Van Sant and they said because they are "used" they will not take them back. Keep in mind that there is not a single mark on them and you cant even tell they were used.

Now I know how you feel when you got "tough luck" when trying to return a product that you are unsatisfied with.... Van Sant got my last dollar with that sale.

anyone want to buy a 7 piece JMR dimple die set?


We simply followed our return policy:
-We cannot accept used tool returns
-We have a 30 day return policy - These dimple dies were purchased on November 17, 2008.

These dimple dies were not defective. They dimpled the material as shown in earlier posts in this thread, which I'm sure you saw before your decision to purchase the JMR dimple dies vs. Light or LeDuc. We did not make any claim to the height or style of dimple these tools would produce. The entire set of 7 dimple dies were used, I'm sorry but we cannot accept used equipment returns.

-Christian Huffman
877-826-7268 x 105

[95geo]

We simply followed our return policy:
-We cannot accept used tool returns
-We have a 30 day return policy - These dimple dies were purchased on November 17, 2008.

These dimple dies were not defective. They dimpled the material as shown in earlier posts in this thread, which I'm sure you saw before your decision to purchase the JMR dimple dies vs. Light or LeDuc. We did not make any claim to the height or style of dimple these tools would produce. The entire set of 7 dimple dies were used, I'm sorry but we cannot accept used equipment returns.

-Christian Huffman
877-826-7268 x 105

at least you are consistant :shaking:

I had a long talk with Jim at JMR and he has taken care of the issues for me, JMR has great customer service!

[95geo]

and Just for the record, this is a "used" tool.

http://www.greatlakes4x4.com/imagehosting/43496403fe4b0e8.jpg
http://www.greatlakes4x4.com/imagehosting/43496403fe4b0e8.jpg

http://www.greatlakes4x4.com/imagehosting/43496403fd8eadb.jpg
http://www.greatlakes4x4.com/imagehosting/43496403fd8eadb.jpg

[PAToyota]

So, out of curiousity, what didn't you like about how they performed? Is there a flaw in the way that they work? Or do they not give the desired results in some way?

[95geo]

So, out of curiousity, what didn't you like about how they performed? Is there a flaw in the way that they work? Or do they not give the desired results in some way?

the dimples are shallow, they are only about .125" deep. this picture shows it pretty well:

http://www.greatlakes4x4.com/imagehosting/43496403fcd2cbf.jpg

http://www.greatlakes4x4.com/imagehosting/43496403fcd2cbf.jpg

[Randy]

The JMR tools are over priced and over rated.:flipoff2: While we are on the subject their benders suck too. Its JD2 for me. They may not look as nice when you pull it out of the box but you don't need the manual to figure out which pin to use in what hole with what die.

My $0.02 after using both at different shops.

And to Trick-Tools :flipoff2: Never again will I buy a tool from you.

[87JeepWrangler]

to 95geo.. your saying your dimple is only .125, while goat1's JMR dies made it somewhere around .200. Do you have any ideas why there such a difference between the two? is it different sheet stock material or thickness? not enough tonnage? what are you using to press them? what did goat1 use?


so for those of us interested in making our own dimple dies, does anyone have a side by side comparison of the dies, and what makes the difference in the shape of the dimple they create?

specifically, the difference between the JMR and LR dies? the angle of the taper, location, etc?

[fabcam]

to 95geo.. your saying your dimple is only .125, while goat1's JMR dies made it somewhere around .200. Do you have any ideas why there such a difference between the two? is it different sheet stock material or thickness? not enough tonnage? what are you using to press them? what did goat1 use?


so for those of us interested in making our own dimple dies, does anyone have a side by side comparison of the dies, and what makes the difference in the shape of the dimple they create?

specifically, the difference between the JMR and LR dies? the angle of the taper, location, etc?

On all flare hole die sets; the thicker the material, the shorter the rise.

When the dies come together with one on each side of the material, thicker material will basically allow less movement of the dies toward each other, hence, making a shorter dimple or flare.

A die that gives you a great looking .200 rise in .060, may only give you a rise of .125 in .125 thick material.


Here is an example using the Race Source die in .125 material. Basically the same result as the JMR:
http://i214.photobucket.com/albums/cc160/smashmetal/2000%20Pontiac%20WS6/IMAG0164.jpg

The same make die in thinner material:
http://i214.photobucket.com/albums/cc160/smashmetal/Blairs%20custom%20fabrication%20and%20paint/IMAG0088.jpg

.

[yellowchevy]

Has anybody on the board here ever used the flare(dimple) dies that blue torch fab sells? I was looking at getting a set and wondering if anyone has any experience with them?

They don't look to bad and looks like that would leave a rig(cone the material out more than some of the other ones).

thanks in advance

[fabcam]

Has anybody on the board here ever used the flare(dimple) dies that blue torch fab sells? I was looking at getting a set and wondering if anyone has any experience with them?

They don't look to bad and looks like that would leave a rig(cone the material out more than some of the other ones).

thanks in advance

I think Dan's dies are the Light Racing. You would have to ask him to verify.

.

[yellowchevy]

Does anybody that uses Light Racing dimple dies wish that they would increase in sizes of 1/4" like JMR's? Or for the most part do the sizes that Light Racing offer work the best?

Just seeing what the consensus is on popular dies.

The Light Racing dimple dies look have a higher quality flare than JMR does from looking at what people have posted.

Thanks in advance,

[95geo]

Does anybody that uses Light Racing dimple dies wish that they would increase in sizes of 1/4" like JMR's? Or for the most part do the sizes that Light Racing offer work the best?

Just seeing what the consensus is on popular dies.

The Light Racing dimple dies look have a higher quality flare than JMR does from looking at what people have posted.

Thanks in advance,

According to JMR they have the "higher quality" flare because their dies dont tear the material on the hole that they flare. I personally would like a flared hole and not what looks like it might be a flared hole. I'm going to machine my JMR dies until I'm satisfied with the end result, then I'll have the best of both worlds..... sucks that I spend $700 to get there :shaking:

[Shram]

Where can you buy LeDuc dimple Dies?