# Sled Weights - weight variations **URL:** \ **Category:** Technical Details\ **Created:** [February 7, 2018, 6:28pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242 "2018-02-07T18:28:11Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![strebor](https://avatars.discourse-cdn.com/v4/letter/s/edb3f5/32.png) [@strebor](https://forums.maslowcnc.com/u/strebor)\ **Post date:** [February 7, 2018, 6:28pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/1 "2018-02-07T18:28:11Z")
I like to re-use things if at all possible. I have two salvaged bricks that are similar in size but no exactly the same weight. Is this a problem? ---
**Author:** ![Gero](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/gero/32/17487_2.png) [@Gero](https://forums.maslowcnc.com/u/Gero)\ **Post date:** [February 7, 2018, 6:34pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/2 "2018-02-07T18:34:04Z")
Hi there, I see no reason why that should be an issue. I like re-use as well. A far as I see it we have different brick weights all over the world and perhaps even within US. You can safely go ahead. A certain weight for bricks has not been published from my knowledge. ---
**Author:** ![Bee](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/bee/32/2160_2.png) [@Bee](https://forums.maslowcnc.com/u/Bee)\ **Post date:** [February 7, 2018, 7:01pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/3 "2018-02-07T19:01:39Z")
The approximate sled weight should not be over 40lbs with the Router. We don’t have a standard “brick” . , I’m not sure there is a brick standard due to the fact production predates publishing I’m pretty sure, originally would have been stones with no uniform weight or size. Thank you ---
**Author:** ![blurfl](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/blurfl/32/9_2.png) [@blurfl](https://forums.maslowcnc.com/u/blurfl)\ **Post date:** [February 7, 2018, 7:01pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/4 "2018-02-07T19:01:44Z")
I agree with @Gero. The triangular linkages should be pretty forgiving about imbalance. ---
**Author:** ![Gero](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/gero/32/17487_2.png) [@Gero](https://forums.maslowcnc.com/u/Gero)\ **Post date:** [February 7, 2018, 7:05pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/5 "2018-02-07T19:05:42Z")
Oh, I miss read the question. With 2 angled bricks of different weight you still can balance by pushing the heavier more in and the lighter more out. ---
**Author:** ![mooselake](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/mooselake/32/6218_2.png) [@mooselake](https://forums.maslowcnc.com/u/mooselake)\ **Post date:** [February 7, 2018, 8:34pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/6 "2018-02-07T20:34:34Z")
> [@Bee](#): > > not sure there is a brick standard > **[Standard Specification for Building Brick (Solid Masonry Units Made from...](https://www.astm.org/c0062-23.html)** > > AbstractThis specification covers building bricks intended for use in structural and nonstructural masonry where external appearance is not a requirement. The bricks are prismatic units available in a variety of sizes, shapes, textures, and colors... ---
**Author:** ![akamcfly](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/akamcfly/32/2086_2.png) [@akamcfly](https://forums.maslowcnc.com/u/akamcfly)\ **Post date:** [February 7, 2018, 9:31pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/7 "2018-02-07T21:31:56Z")
You could always chip a bit off of the larger brick to get them closer in weight. ---
**Author:** ![Thormj](https://avatars.discourse-cdn.com/v4/letter/t/7cd45c/32.png) [@Thormj](https://forums.maslowcnc.com/u/Thormj)\ **Post date:** [February 8, 2018, 2:34pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/8 "2018-02-08T14:34:09Z")
Well, the great thing about standards is that there are so many to choose from 😉 . And stocking of each seems to be iffy (and where they are located in Home Depot makes no sense): Firebrick - Light weight, not in stock at HD, several weights/insulations Red Brick, no holes - Located in Lawn and garden. Red Brick, holes - Located in construction supplies Concrete brick - Location determined by how “fancy” it is. Lots of different sizes… ---
**Author:** ![mooselake](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/mooselake/32/6218_2.png) [@mooselake](https://forums.maslowcnc.com/u/mooselake)\ **Post date:** [February 8, 2018, 3:52pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/9 "2018-02-08T15:52:18Z")
> [@akamcfly](#): > > chip a bit off of the larger brick A chip off the old brick? Ducks ---
**Author:** ![akamcfly](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/akamcfly/32/2086_2.png) [@akamcfly](https://forums.maslowcnc.com/u/akamcfly)\ **Post date:** [February 8, 2018, 4:16pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/10 "2018-02-08T16:16:08Z")
> [@mooselake](#): > > chip off the old brick? Ducks All of that goes on your permanent record… ---
**Author:** ![mooselake](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/mooselake/32/6218_2.png) [@mooselake](https://forums.maslowcnc.com/u/mooselake)\ **Post date:** [February 8, 2018, 5:50pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/11 "2018-02-08T17:50:51Z")
> [@akamcfly](#): > > All of that goes on your permanent record… 🙂 It’s so long nobody’ll notice ---
**Author:** ![Bee](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/bee/32/2160_2.png) [@Bee](https://forums.maslowcnc.com/u/Bee)\ **Post date:** [February 9, 2018, 12:28am UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/12 "2018-02-09T00:28:40Z")
Quack !.. Thank you ---
**Author:** ![arnoldcp](https://avatars.discourse-cdn.com/v4/letter/a/ecb155/32.png) [@arnoldcp](https://forums.maslowcnc.com/u/arnoldcp)\ **Post date:** [February 12, 2018, 5:31pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/13 "2018-02-12T17:31:33Z")
Just to confirm, in the triangular kinematics math does one even need to find the CoG of the sled? I believe that is the case meaning that it should be very forgiving, as you said. ---
**Author:** ![blurfl](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/blurfl/32/9_2.png) [@blurfl](https://forums.maslowcnc.com/u/blurfl)\ **Post date:** [February 12, 2018, 5:35pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/14 "2018-02-12T17:35:23Z")
I don’t see the CoG value used in the triangular Kinematics calculations, so I think it’s not needed with the triangular linkages. I haven’t updated it for the recent triangular linkage sleds I’ve made, and I don’t think it has mattered. ---
**Author:** ![rjon17469](https://avatars.discourse-cdn.com/v4/letter/r/5f8ce5/32.png) [@rjon17469](https://forums.maslowcnc.com/u/rjon17469)\ **Post date:** [February 12, 2018, 6:18pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/15 "2018-02-12T18:18:23Z")
> [@blurfl](#): > > I don’t see the CoG value used in the triangular Kinematics calculations, so I think it’s not needed with the triangular linkages. I haven’t updated it for the recent triangular linkage sleds I’ve made, and I don’t think it has mattered. This is correct, the sled CoG is not used in the triangular kinematics as it is assumed the linkage kit can correct for changes in orientation of the sled. ---
**Author:** ![dlang](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/dlang/32/859_2.png) [@dlang](https://forums.maslowcnc.com/u/dlang)\ **Post date:** [February 12, 2018, 6:44pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/16 "2018-02-12T18:44:50Z")
no, you do not need to find the CG of the sled as it was asked for previously you should figure out where the CG of the sled along the Z axis is, and position things so that the chains are at, or just above this leve. ---
**Author:** ![blurfl](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/blurfl/32/9_2.png) [@blurfl](https://forums.maslowcnc.com/u/blurfl)\ **Post date:** [February 12, 2018, 7:40pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/17 "2018-02-12T19:40:17Z")
> [@dlang](#): > > position > > things so that the chains are at, or just above this level. With a triangular linkage the chains should be above this level to help keep the linkage from rotating to its limits. The triangular linkages work best when they are not ‘against the stops’. ---
**Author:** ![dlang](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/dlang/32/859_2.png) [@dlang](https://forums.maslowcnc.com/u/dlang)\ **Post date:** [February 12, 2018, 9:41pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/18 "2018-02-12T21:41:34Z")
I am talking about in the Z direction, you are talking about in the x/y direction. This gets confusing because Y is far more towards the sky than Z is. ---
**Author:** ![lthomas987](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/lthomas987/32/3667_2.png) [@lthomas987](https://forums.maslowcnc.com/u/lthomas987)\ **Post date:** [March 6, 2018, 3:36pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/19 "2018-03-06T15:36:46Z")
So if a person had some lead weight laying around and no bricks, would it be better to center the weight directly below the router? Or split it in two and spread it out like the bricks? ---
**Author:** ![blurfl](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/blurfl/32/9_2.png) [@blurfl](https://forums.maslowcnc.com/u/blurfl)\ **Post date:** [March 6, 2018, 3:42pm UTC](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242/20 "2018-03-06T15:42:21Z")
> [@lthomas987](#): > > center the weight directly below the router? Or split it in two and spread it out like the bricks? Some routers offer a dust collection port, if yours does then splitting the weight to leave access to the dust port makes sense. [Next page](https://forums.maslowcnc.com/t/sled-weights-weight-variations/2242.md?page=2)