# Mini launch rail

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#### Invertman

##### New Member
Does anyone have some info about where
I can get a mini launch rail for low power
Rockets. I hear of people having them but
I haven’t been able to find a vendor.
thanks.

#### crossfire

For the Mini buttons you need a 20mm size T slot rail. I paid more but purchased mine right from 80/20 Company. I heard the 15mm will work for the micro buttons but 10mm is recommend. It would be great if 15mm would work for both sizes.

#### cwbullet

##### Obsessed with Rocketry
Staff member
Global Mod
That is one I purchased. I 3d print rail guides,

#### crossfire

That is one I purchased. I 3d print rail guides,
So you printed guides to fit 15mm rails? Does micro buttons from rail buttons. Com work on 15mm?

#### cwbullet

##### Obsessed with Rocketry
Staff member
Global Mod
So you printed guides to fit 15mm rails? Does micro buttons from rail buttons. Com work on 15mm?
I do not know. I print rail guides down to the smallest rail you can buy.

#### T-Rex

##### Ordinary Average Guy
TRF Supporter
Mini buttons from Rail Button dot com fit 80/20 20mmx20mm rail.
Make sure you get true 80/20 beam, as discussed in another thread, the knock offs are not the same size. The cheapest I could locate is on ebay, and 4 meters in length. (search 80/20 20mm 4M ) Being 4meters in length (13feet) it is truck shipped. I met the truck at the local Walmart.

Their micro buttons fit the 10mm maker beam, available through Amazon. If I was to buy again, I would purchase the 1500mm length. It is only $5 more. MakerBeam 900x10x10mm beam clear anodised (pack of 2) Last edited: #### cwbullet ##### Obsessed with Rocketry Staff member Administrator TRF Lifetime Supporter Global Mod Ok, Here is an image of the 10mm guide. I also have them for 15 and 20mm. If there is interest, I can upload them the thingverse. #### NateB ##### Well-Known Member Their micro buttons fit the 10mm maker beam, available through Amazon. If I was to buy again, I would purchase the 1500mm length. It is only$5 more.
I ended up 2 1000mm and 2 1500mm of these 10mm rails. I found my BT50 Mach 1 kits benefited from a longer rail.

#### NateB

##### Well-Known Member
Ok,

Here is an image of the 10mm guide. I also have them for 15 and 20mm.

View attachment 440122
If there is interest, I can upload them the thingverse.
That looks nice for MD kits. I have been using an H column from Evergreen Plastics, it works well enough but can let the rocket sit at an odd angle on the pad.

#### Invertman

##### New Member
Thanks guys for time and info! I appreciate it!

#### cwbullet

##### Obsessed with Rocketry
Staff member
Global Mod
That looks nice for MD kits. I have been using an H column from Evergreen Plastics, it works well enough but can let the rocket sit at an odd angle on the pad.

#### Terry Habegger

##### Member
Ok,

Here is an image of the 10mm guide. I also have them for 15 and 20mm.

View attachment 440122
If there is interest, I can upload them the thingverse.
I would be interested cause I am working on some md rockets.
thank you
Terry tra level 2

#### Ez2cDave

##### Well-Known Member
TRF Supporter
Does anyone have some info about where
I can get a mini launch rail for low power
Rockets. I hear of people having them but
I haven’t been able to find a vendor.
thanks.
The "Low-Buck" approach would be to recreate the Estes "C-Rail" . . . Get some 3/8" Square Tubing and put a 1/8" wide "Slot" in it ( any machine shop should be able to do that, if you don't have the tools ).

Dave F.

#### cwbullet

##### Obsessed with Rocketry
Staff member
Global Mod
Dave
The "Low-Buck" approach would be to recreate the Estes "C-Rail" . . . Get some 3/8" Square Tubing and put a 1/8" wide "Slot" in it ( any machine shop should be able to do that, if you don't have the tools ).

Dave F.

View attachment 440227
Dave,

I can make a file for this slot also if you want them 3D printed. Where do you get a C Slot rail.

#### Ez2cDave

##### Well-Known Member
TRF Supporter
Dave

Dave,

I can make a file for this slot also if you want them 3D printed. Where do you get a C Slot rail.

Chuck,

Unfortunately, the C-Slot Rail has to be made, using 3/8" square Aluminum tubing ( .0625" Wall Thickness ) . . .

The "Slot" ( 1/8" wide ) has to be cut into it to create the "C-Rail".

Dave F.

#### Rocketless

##### Member
Here is mine made from 20 mm ordered from 89-20 as noted above, I made mine with 5 usable feet of launch rod, mounted on a 1/2” ID black pipe, inserted inside a camera tripod

#### Ez2cDave

##### Well-Known Member
TRF Supporter
Here is mine made from 20 mm ordered from 89-20 as noted above, I made mine with 5 usable feet of launch rod, mounted on a 1/2” ID black pipe, inserted inside a camera tripod

No image showed up . . .

Dave F.

#### Attachments

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TRF Supporter
Thanks !

Dave F.

#### Blast it Tom!

##### Well-Known Dweeb
TRF Supporter
Chuck,

Unfortunately, the C-Slot Rail has to be made, using 3/8" square Aluminum tubing ( .0625" Wall Thickness ) . . .

The "Slot" ( 1/8" wide ) has to be cut into it to create the "C-Rail".

Dave F.
The nice thing about a "C" rail is you can put a launch lug on an offset and fly off either rail or rod, depending on who has what where. I was considering doing this with my brother-in-law's V2 (3/16" rod) but I don't think the Maker Rail has enough room for the "straw". I must admit I'd have gone with buttons or guides and maker rail if I'd know about them as a BAR.

But I could rip a 1/8" slot in a square aluminum with my table saw.

#### Ez2cDave

##### Well-Known Member
TRF Supporter
But I could rip a 1/8" slot in a square aluminum with my table saw.
I bet you could sell a ton of those, especially if you re-create the original Estes "C-Rail" and an upscaled "Maxi" version !

Personally, I'd like to see 3ft, or longer, sections, rather than the original 18" lengths. The original used 3/8" square aluminum stock, with .0625" wall thickness.

Dave F.

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#### Blast it Tom!

##### Well-Known Dweeb
TRF Supporter
I bet you could sell a ton of those, especially if you re-create the original Estes "C-Rail" and an upscaled "Maxi" version !

Personally, I'd like to see 3ft, or longer, sections, rather than the original 18" lengths. The original used 3/8" square aluminum stock, with .0625" wall thickness.

Dave F.

View attachment 450724

View attachment 450725
Well, If I did I might want to do better than using my table saw! But yes, I well remember those catalog pages from when I was a kid, and the idea of making nice-looking launch towers (and reinforcing the rail as they did) appealed to me, but life took some crazy turns. It still does. But I see club launches generally frown on home-made, stand-alone launch systems, so I'd only be selling to park flyers (as I am at least for now).

Does anyone have a dimesioned cross section of these maker rails, or are they available on ther web site? This may rate a "Let me Google That for You" link!

TRF Supporter
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#### BMcD

##### Well-Known Member
If you search on here there is an old thread with posts from TerryG and MicroMeister that has detailed images of the various rails, as well as a link to a technical report on the site of MM's old club. Between the thread and that link there is lots of great info.

#### Blast it Tom!

##### Well-Known Dweeb
TRF Supporter
Well, thanks to @Ez2cDave, a quick layout of the 10 x 10 and 15 x 15 maker rails shown me there isn't any way a 3/16 launch lug "straw is going into those profiles. So I think I'll have a look at aluminum square tube profiles. Or just glue the straw on! It's 0.227" OD, so a 3/8 alumimum square tube would have to have 1/16" walls to have a comfortable fit...

#### shockie

##### High Plains Drifter
here's a 1500mm 10x10 :

#### Ez2cDave

##### Well-Known Member
TRF Supporter
Well, thanks to @Ez2cDave, a quick layout of the 10 x 10 and 15 x 15 maker rails shown me there isn't any way a 3/16 launch lug "straw is going into those profiles. So I think I'll have a look at aluminum square tube profiles. Or just glue the straw on! It's 0.227" OD, so a 3/8 alumimum square tube would have to have 1/16" walls to have a comfortable fit...
There is another interesting method, using square tubing, that does not require cutting a slot.

It is called the "Meyer Method" . . .

Dave F.

#### Blast it Tom!

##### Well-Known Dweeb
TRF Supporter
You're quite right, that would work as well. Pop rivets would hold the "L" pieces nice and tight.