# Why isn't any of this information available? **URL:** \ **Category:** Technical Details\ **Created:** [May 11, 2022, 6:22am UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006 "2022-05-11T06:22:31Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![bteddy](https://avatars.discourse-cdn.com/v4/letter/b/47e85d/32.png) [@bteddy](https://forums.maslowcnc.com/u/bteddy)\ **Post date:** [May 11, 2022, 6:22am UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/1 "2022-05-11T06:22:31Z")
Thanks for the work you put in but if “Maslow is a community driven open source project”, why isn’t any of this information available? 1. Formulas/calculations, nomenclature used in the design. 2. measurements the diameter and thickness of the gears in the gearbox. 3. gear ratios in the gearbox. 4. motor specs: voltage, current, RPM, Torque, dimensions 5. output speed of gearbox. Community members had to go inside the gearbox themselves to get some information. They shouldn’t have had to do that. I asked question years ago and received no response. Where is the community? How is this open source, are there only certain parts that’s open source? Thanks ---
**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:** [May 11, 2022, 9:24am UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/2 "2022-05-11T09:24:03Z")
the info you are asking for was unknown to everyone until the community dug into it, or it was readily shared by Bar (such as the motor info where he shared links to the motor and everyone could look them up) I don’t know what you are accusing him of, but he has been very open with all information that he has. David Lang ---
**Author:** ![bar](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/bar/32/10_2.png) [@bar](https://forums.maslowcnc.com/u/bar)\ **Post date:** [May 11, 2022, 4:26pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/3 "2022-05-11T16:26:23Z")
Those are all pretty broad topics, but I’m happy to answer any specific questions. ---
**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:** [May 11, 2022, 6:21pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/4 "2022-05-11T18:21:33Z")
I suspect that you think that there was more knowledge to be had than there actually was. the math of the maslow movement was much more primitive in the initial version, the community contributed significant advances. the initial software assumed that the gear ratio advertised by the motor manuracturer was correct, the community discovered it wasn’t. the lean-back and weight were a matter of experimentation, not calculation. ---
**Author:** ![bteddy](https://avatars.discourse-cdn.com/v4/letter/b/47e85d/32.png) [@bteddy](https://forums.maslowcnc.com/u/bteddy)\ **Post date:** [May 11, 2022, 6:26pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/5 "2022-05-11T18:26:24Z")
To: DLang I asked a question. it’s basic information and should be in one area (not more than one page from “[www.maslowcnc.com](http://www.maslowcnc.com)”) and not have to write an AI data mining program to find it. I am not accusing anyone of anything. Remove the stick and inhale. Thank You ---
**Author:** ![bteddy](https://avatars.discourse-cdn.com/v4/letter/b/47e85d/32.png) [@bteddy](https://forums.maslowcnc.com/u/bteddy)\ **Post date:** [May 11, 2022, 6:50pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/6 "2022-05-11T18:50:08Z")
To:Bar Hello, thank you for responding. I’m sorry but I think your response is evasive “Those are all pretty broad topics”. They are not broad. I am asking for exactly what I would like to know.They are very specific: 1. What are the formulas used with nomenclature? Type up and post. 2. What are the dimensions (diameter/height) of the gears in the gearbox? Measure and post. 3. What is the gear ratio of each stage of the 4 stages of the gears in the gearbox? count the teeth of each gear and post. 4. Motor specs are motor specs. voltage, current, RPM, Torque, dimensions. Get specs from manufacture and post or get the common model number so community can look it up themselves. 5. What is the output speed of gearbox? Measure RPM and post. I don’t know how else to ask. Not looking for philosophy just the numbers and there are numbers that go to each question. Thank you for your time. ---
**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:** [May 11, 2022, 6:56pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/7 "2022-05-11T18:56:26Z")
the maslow is open source enough that there have been multiple people who have sold kits, are you saying that there is information missing? or that the existing information needs to be organized differently? If you aren’t accusing people of acting in bad faith, please explain what you are asking for. David Lang ---
**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:** [May 11, 2022, 7:45pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/8 "2022-05-11T19:45:52Z")
> 1. What are the formulas used with nomenclature? > Type up and post. formulas for what? the formulas that are in the firmware for calculating the position? that is different for different firmware > 1. What are the dimensions (diameter/height) of the gears in the gearbox? Measure and post. diameters don’t matter, overall gear ratio does > 1. What is the gear ratio of each stage of the 4 stages of the gears in the gearbox? count the teeth of each gear and post. why? only the overall ratio matters right? > 1. Motor specs are motor specs. voltage, current, RPM, Torque, dimensions. > Get specs from manufacture and post or get the common model number > so community can look it up themselves. umm, did you look at the BOM that lists this? > 1. What is the output speed of gearbox? > Measure RPM and post. the stock motors will do ~20 rpm at max power David Lang ---
**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:** [May 11, 2022, 7:49pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/9 "2022-05-11T19:49:28Z")
for the motor, I believe that this is a 24v version of the motor (specs pretty much the same, but with higher torque and speed than the 12v version) > **[Amazon.com: uxcell DC 24V 28RPM 50Kg.cm Self-Locking Worm Gear Motor with...](https://www.amazon.com/uxcell-50Kg-cm-Self-Locking-Encoder-Reduction/dp/B0788CTS4V)** > > DescriptionDC 24V 28RPM 50Kg.cm Self-Locking Worm Gear Motor With Encoder And Cable, High Torque Speed Reduction Motor Specification:Voltage: DC24VNo-Load Speed: 28rpmReduction Ratio: 1:280Torque: 50Kg.cmError: ±10%Wire Length: 20cmOutput Shaft... note that different kit manufacturers may include different motors. David Lang ---
**Author:** ![Orob](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/orob/32/16344_2.png) [@Orob](https://forums.maslowcnc.com/u/Orob)\ **Post date:** [May 11, 2022, 9:12pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/10 "2022-05-11T21:12:12Z")
Edit (previous post contents not helpful): Formulae: [Firmware/Kinematics.cpp at master · MaslowCNC/Firmware · GitHub](https://github.com/MaslowCNC/Firmware/blob/master/cnc_ctrl_v1/Kinematics.cpp) a simple search on the forum will get you what you seek: [gearbox info](https://forums.maslowcnc.com/t/whats-inside-the-gearbox-motor) see post 7 for gear ratios. [More here](https://forums.maslowcnc.com/t/loose-drive-motor-to-gearbox-fix-with-pictures/17789). you can change them if you want. the encoder is on the motor shaft, not on the gearbox shaft, so it’s counts wont change if you change the gearing. The sprocket is a 9 tooth 1/4" link. curious: why shouldn’t community members have had to go into the gearbox to get information? The gearbox came with the motor as an assembly item. It was not designed for this application, it is an off-the-shelf item available in mass quantity (or at least it used to be). The manufacturer should have the info you seek. It isn’t like it is proprietary information. It makes sense now that you bring it up, that this might be useful to archive. But “c’mon man,” your claim of lack of open source isn’t really valid because the “community” didn’t cough up facts fast enough for you when you could have looked them up with a little google-fu. ---
**Author:** ![bteddy](https://avatars.discourse-cdn.com/v4/letter/b/47e85d/32.png) [@bteddy](https://forums.maslowcnc.com/u/bteddy)\ **Post date:** [May 11, 2022, 9:17pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/11 "2022-05-11T21:17:06Z")
> formulas for what? the formulas that are in the firmware for calculating the > position? that is different for different firmware. Angles, sprocket size, chain length, chain tension, sled angles, sled weight, frame bar thickness… any formula/all formulas. what you used to come up with what you have. Why does it have to be one or two? > 1. What are the dimensions (diameter/height) of the gears in the gearbox? Measure and post. > > > diameters don’t matter, overall gear ratio does. It matters if your scaling, customizing or replacing the plastic inside with metal. > 1. What is the gear ratio of each stage of the 4 stages of the gears in the gearbox? count the teeth of each gear and post. > > why? only the overall ratio matters right? It matters if your scaling, customizing or replacing the plastic inside with metal. > 1. Motor specs are motor specs. voltage, current, RPM, Torque, dimensions. > Get specs from manufacture and post or get the common model number > so community can look it up themselves. > > umm, did you look at the BOM that lists this? B.O.M. list specs of the gearbox only not the motor other than its voltage not even its model#. > 1. What is the output speed of gearbox? > Measure RPM and post. > > the stock motors will do ~20 rpm at max power > [/quote] Thank you, one straight answer and yes, I did find this one in the B.O.M. this time, it wasn’t always there. I not looking to argue or debate if it is required, I don’t care if everyone on the planet thinks it doesn’t matter. I do, and I know others do because have asked me if I found anything. I would like that data available without the questions and the wasted five message exchanges like here. Here is how it should go. Example: Question: What are the motor specs, please? Reply: It is a Modle-775, 24V, 1A, 6000RPM dual ball bearing, 42mm dia X 66mm len.,.Shaft-5mm dia X 17mm len. Courtesy reply:Thank you. End example See quick no fuss no muss. You got to help, member got their answer. All are happy. Thank You ---
**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:** [May 11, 2022, 9:49pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/12 "2022-05-11T21:49:52Z")
> > formulas for what? the formulas that are in the firmware for calculating the > > position? that is different for different firmware. > > Angles, sprocket size, chain length, chain tension, sled angles, sled weight, frame bar thickness… any formula/all formulas. > what you used to come up with what you have. Why does it have to be one or two? most of that is ‘it works’, there wasn’t that much analysis done 🙂 the sprocket sizes are the smallest available that fit the motors chain length is ‘long enough to reach’, the 10’ top beam was that lumber comes in that size and it seems reasonable and seemed to work. Later investigation shows that there is a significant advantage in going to a 12’ top beam, most of the math showing this is available in the spreadsheet I created. This shows chain tension, and experimentation has shown that more min tension is better, and max tension can’t be too high or you have trouble in the top center (again, with the original motors/power supply) > **[Maslow Chain Geometry diff](https://docs.google.com/spreadsheets/d/1mv-sUyig7rTph58ell1ETJP32yo1pq4JgaVvp45PKqU/edit#gid=0)** > > Sheet1 > > Change the values in the green fields to reflect the two machines you are wanting to compare. The numbers in the blue areas are the results, the Yellow areas show the differences between the... the math isn’t perfect, but it seems to be ‘good enough’ frame bar thickness is ‘2x4 is the default dimension for US lumber’ and the prototype worked. It may be better to have a stronger top beam, but no real analysis has been done. frame angle, accidental testing that was done during the design of the new frame (i.e. Bar not following my instructions in building a test frame 🙂 ) showed us that 20 degree tilt back is too much. We had someone test with 5 degree tilt back and they found that the sled tended to push away from the workpiece instead of drilling in. We haven’t had anyone test 10 vs 15 degrees (let alone anything more specific) to see where the real sweet spot is. As for the sled weight, before the first prototype, Bar did testing with lots of things, including 6+ bricks on the sled, very heavy chains, etc and the result ended up being the two brick weight ‘worked’. Since then, we found all sorts of new info. We know that a sled that’s much heavier runs into problems (the motors can’t move it near the top center), but we really haven’t tested much with varying the weight. The early versions of the code did nothing to account for the chain sagging (which will be more significant with a lighter sled), and I don’t know of any testing that has been done since holey calibration was invented which partially accounts for chain sag. mostly, this isn’t a matter of formula and calculations as much as ‘the prototype worked and we’ve mostly followed along with that since’ > > 1. What are the dimensions (diameter/height) of the gears in the gearbox? Measure and post. > > > > > diameters don¢t matter, overall gear ratio does. > > It matters if your scaling, customizing or replacing the plastic inside with metal. if you are doing that, you should just build a complete new gearbox or purchase the gears because there’s a lot more detail than just hight/diameter of the gears. > > 1. What is the gear ratio of each stage of the 4 stages of the gears in the gearbox? count the teeth of each gear and post. > > > > why? only the overall ratio matters right? > > It matters if your scaling, customizing or replacing the plastic inside with metal. same answer > > 1. Motor specs are motor specs. voltage, current, RPM, Torque, dimensions. > > Get specs from manufacture and post or get the common model number > > so community can look it up themselves. > > > > umm, did you look at the BOM that lists this? > > B.O.M. list specs of the gearbox only not the motor other than its voltage not even its model#. ok, I posted a link to a motor in the same family, that should answer your questions. > > 1. What is the output speed of gearbox? > > Measure RPM and post. > > > > the stock motors will do ~20 rpm at max power > > [/quote] > > Thank you, one straight answer and yes, I did find this one in the B.O.M. this time, it wasn’t always there. > > I not looking to argue or debate if it is required, I don’t care if everyone on the planet thinks it doesn’t matter. I do, and I know others do because have asked me if I found anything. > > I would like that data available without the questions and the wasted five message exchanges like here. > > Here is how it should go. > > Example: > > Question: What are the motor specs, please? > Reply: It is a Modle-775, 24V, 1A, 6000RPM dual ball bearing, 42mm dia X 66mm len.,.Shaft-5mm dia X 17mm len. > > Courtesy reply:Thank you. > > End example > > See quick no fuss no muss. You got to help, member got their answer. > All are happy. you are asking for information that nobody knows, and you are asking people to go take apart their equipment to measure stuff, that doesn’t justify an automatic ‘here are the details you are asking for’ response you seem to be expecting. David Lang ---
**Author:** ![ACME](https://avatars.discourse-cdn.com/v4/letter/a/b487fb/32.png) [@ACME](https://forums.maslowcnc.com/u/ACME)\ **Post date:** [May 11, 2022, 11:04pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/13 "2022-05-11T23:04:55Z")
Somehow I got an email notification on this thread…not sure why… and so I’m just going to crawl back under my rock again cause I don’t know anything…I’m sorry but I’m ignorant. I didn’t do it. ---
**Author:** ![bteddy](https://avatars.discourse-cdn.com/v4/letter/b/47e85d/32.png) [@bteddy](https://forums.maslowcnc.com/u/bteddy)\ **Post date:** [May 11, 2022, 11:07pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/14 "2022-05-11T23:07:11Z")
[/quote] you are asking for information that nobody knows, and you are asking people to go take apart their equipment to measure stuff, that doesn’t justify an automatic ‘here are the details you are asking for’ response you seem to be expecting. David Lang [/quote] That is exactly the point. Maslow is 7 years old. Someone should know. People have taken apart their equipment measure stuff. https://forums.maslowcnc.com/t/whats-inside-the-gearbox-motor/190 You are very smart people. This stuff should be a for thought not an after thought. Initial information should be documented with detailed specs of each item (for WHEN the item is no longer available). So a close match can be found when needed or used as a base to find higher performance options. There are a lot of electronic projects that are dead because one component and its datasheet is no longer available. To me, the information I requested and everything else I don’t know to ask for yet, should be on a PDF or spreadsheet created 7 years ago and updated as often as possible. That should be the foundation your knowledge is based on. Thank You for what you could answer. ---
**Author:** ![bteddy](https://avatars.discourse-cdn.com/v4/letter/b/47e85d/32.png) [@bteddy](https://forums.maslowcnc.com/u/bteddy)\ **Post date:** [May 11, 2022, 11:10pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/15 "2022-05-11T23:10:09Z")
Where did you post the information on the motor, Github? Thank You ---
**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:** [May 11, 2022, 11:36pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/16 "2022-05-11T23:36:12Z")
here it is again > **[Amazon.com: uxcell DC 24V 28RPM 50Kg.cm Self-Locking Worm Gear Motor with...](https://www.amazon.com/uxcell-50Kg-cm-Self-Locking-Encoder-Reduction/dp/B0788CTS4V)** > > DescriptionDC 24V 28RPM 50Kg.cm Self-Locking Worm Gear Motor With Encoder And Cable, High Torque Speed Reduction Motor Specification:Voltage: DC24VNo-Load Speed: 28rpmReduction Ratio: 1:280Torque: 50Kg.cmError: ±10%Wire Length: 20cmOutput Shaft... this is a 24v version, so it’s 28 rpm instead of 20 and has more torque, but it’s the same size. people were actually building their own Maslow before the first kits shipped sourcing everything themselves. nothing in the motor is critical, it just is a selection that works with the stock controller board (limited by the current capacity of the controller and power supply), people have build maslow systems with many other motors. David Lang ---
**Author:** ![bteddy](https://avatars.discourse-cdn.com/v4/letter/b/47e85d/32.png) [@bteddy](https://forums.maslowcnc.com/u/bteddy)\ **Post date:** [May 11, 2022, 11:58pm UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/17 "2022-05-11T23:58:55Z")
Thank you, thought the first one was an AD. But, it’s still the gearbox assembly/unit, not just the motor. There are motors that are the some diameter but longer that may have a higher RPM or Torque but if you don’t know where to start from… I know you don’t know, I’m not asking again, I’m just stating I was always asking about the gearbox and motor separately/independently of each other. Thank You ---
**Author:** ![bteddy](https://avatars.discourse-cdn.com/v4/letter/b/47e85d/32.png) [@bteddy](https://forums.maslowcnc.com/u/bteddy)\ **Post date:** [May 12, 2022, 12:05am UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/18 "2022-05-12T00:05:40Z")
Topics in forum that support my statements. one They are asking the same thing I am. I started not of these and have no posting in any of them but (Whats inside the gearbox/motor). Whats inside the gearbox/motor? > [@Whats inside the gearbox/motor?](https://forums.maslowcnc.com/t/whats-inside-the-gearbox-motor/190): > > So following in the footsteps of our patron saints AvE & Dave Jones, I took apart my gear box to see what secrets it held inside. Here is what I have found… The gearbox (from my counting) as a 23:1 ratio from the motor output to output shaft. Both ends of the output shaft ride on a shielded bearing. Most of the gears are powdered metal with the exception of the worm shaft(motor output, single toothed, brass?) and the worm wheel (plastic). Each gear is held in place with steel … Explanation of the math for moving the sled? > [@Explanation of the math for moving the sled?](https://forums.maslowcnc.com/t/explanation-of-the-math-for-moving-the-sled/2183/9): > > This is accomplished by the equations that @Joshua was asking about, where the straight chain length is calculated from the motor distance and sprocket radius. I found it was cleaner to accomplish it this way than to try to translate the motor position into a constantly moving point on the sprockets. The chain angle is calculated based on the exit point from the sprocket, which is why the chain angle equations are different for the chain on top versus the chain on bottom configurations. Frame Geometry Question > [@Frame Geometry Question](https://forums.maslowcnc.com/t/frame-geometry-question/5639/15): > > Will do. I have scales to put in-line with my chains - I will try to connect them tomorrow, I think I can do this without the motors running (I’m still waiting for a H-bridge board to arrive). As a starting point to calculating the budget for the weakest lateral forces in the bottom corners, I think that the following sketch is correct. It calculates the largest lateral force (Gravity) before accounting for friction, router torque inertia, bit pull/bite, momentum, etc… Does anyone see any … Upgrading XY motors to double bearings and all metal gears > [@Upgrading XY motors to double bearings and all metal gears](https://forums.maslowcnc.com/t/upgrading-xy-motors-to-double-bearings-and-all-metal-gears/14450/12): > > How much RPM are we currently getting? Will check that at the workshop tomorrow and provide the answer. From what I remember is that we are limited hard-coded by the firmware to F1000 and default in GC is F800. Wow that relates to RPM and how fast we could actually go is from my perspective somethig that people like (alphabetically) @bar @blurfl @dlang @MeticulousMaynard@Orob @zaneclaes and sorry for those i missed would be able to answer. The true ratio, the true Amps is something to be check… Willing to open broken motor? Help needed > [@Willing to open broken motor? Help needed](https://forums.maslowcnc.com/t/willing-to-open-broken-motor-help-needed/6530/5): > > I consider this as fake news because I heard it several times and today took a witness to confirm where it’s coming from. Edit: I had the witness press the ‘pull tight’ the second time so I would be on the ladder to make sure the sound is from the left motor. Edit2: What would you like? The gopro is in the workshop and ready to record if a video would help. Edit3: I am sure there is a beeping device in my left motor and I asked for help to find it. Trying to convince the community that this… X/Y motor specs vague > [@X/Y motor specs vague](https://forums.maslowcnc.com/t/x-y-motor-specs-vague/9258/13): > > On my side this was solved with a 10A power supply and the TLE5206. With a 15kg sled at 8°. With the TLE it was the first time to see a motor actually stall. Before it was just killing the original shield chips and/or the 5A power supply. I can’t calculate it, but i’m testing and observing for some time. [straight-line-curves-down-at-top-of-the-sheet-solved](https://forums.maslowcnc.com/t/straight-line-curves-down-at-top-of-the-sheet-solved/2419) Finding Center of Gravity for the Sled Ring > [@Finding Center of Gravity for the Sled Ring](https://forums.maslowcnc.com/t/finding-center-of-gravity-for-the-sled-ring/10281/4): > > @Metalmaslow How do you feel about editing your post? Personally, i feel it’s a wrong advice, but am open for discussion. My theory (i’m trying to convince @dlang till date) is, that since triangular we have a moving CG on the sled as the ‘chain attachment points’ are moving, depending on how high the motors are and where we are on the sheet. 2 strings (non slipping), in the middle of the ring part the bearings are moving, would work, perhaps. A string at the top of the ring is not going to gi… New Stock Frame Design > [@sun\_with\_face New Stock Frame Design sun\_with\_face](https://forums.maslowcnc.com/t/sun-with-face-new-stock-frame-design-sun-with-face/2025): > > The frame design has remained largely the same while the other parts of the machine have steadily improved. The community has made a number of different frame designs each with their own strengths and weaknesses. It’s time that we collected the improvements the community has made and re-designed the stock frame. The goals are: Simple to construct Uses low cost universally available materials Provides increased rigidity from the original design Let’s talk about features we like and designs el… Gearbox Failure - Are We Exceeding Motor Design Limits? > [@Gearbox Failure - Are We Exceeding Motor Design Limits?](https://forums.maslowcnc.com/t/gearbox-failure-are-we-exceeding-motor-design-limits/6633/3): > > I menioned in my post that I hadn’t taken that into account and that it was a missing variable. Sense you mentioned it, using our 14kg sled as an example, the amount of vertical load decreased due to the frame supporting the load is somewhere around 3-4kg. Per my post I also didn’t factor in the increased load to to the friction of the sled on the material being cut. That value can be calculated but is going to be dependent heavily on the construction of the individual sled. Which is why I didn… Alternate Supply of Motors/Gears/Encoders > [@Alternate Supply of Motors/Gears/Encoders](https://forums.maslowcnc.com/t/alternate-supply-of-motors-gears-encoders/4982): > > Hi folks, Not being an engineer, the specifics of the worm gear motors is a mystery to me. I have been digging into the forums to try to identify the specifications necessary for the main motors to see if I can find a non-China based supplier (who will only sell in quantities way above my needs!) for my failures while the store is out of them. Hopefully something on a “usual” site, like Amazon! slight_smile I have the following specifications. Can you folks check me on these? Output shaf… Motor gears stripped > [@Motor gears stripped](https://forums.maslowcnc.com/t/motor-gears-stripped/4537/20): > > Hi dlang! I don’t have this setup and I’m unfamiliar with the problems you guys are having. Can you please elaborate on the problems you encounter when the sled is high on the board? I know as high the sled gets, the more force the motors need to keep pulling it up, as closer the sled is from the same height of the sprockets harder it is for the motors, to the point that the motors will be pulling against each other. But if you add weight to the sled AND compensate it on the counterweight s… Another left motor gear failure, need a solution > [@Another left motor gear failure, need a solution](https://forums.maslowcnc.com/t/another-left-motor-gear-failure-need-a-solution/6470/17): > > I disagree with this assessment (although agree that the current calibration step is wrong) you do want to stretch the chains. We need to measure the difference between the chains under tension and the theoretical chain length to know what the chain slop is. you also want to be able to see if the frame flexes under load or not. The chain breaking strength is something line 900 pounds, and it’s normal operational load rating is something like 200 pounds. If the power supply and motor shie… Triangular Linkage Evaluation Criteria and Measurements > [@Triangular Linkage Evaluation Criteria and Measurements](https://forums.maslowcnc.com/t/triangular-linkage-evaluation-criteria-and-measurements/1407/45): > > If that were the case, that would explain a lot. I noticed that the Z-Axis wasn’t moving as much as it should have during the 27 square test. When retracting, it would slowly turn (like, very much slower than usual), or not at all. I had thought that maybe a wire had gotten disconnected, but it also would be entirely possible that the router was getting hung up on the Z-Axis motor. I looked through the video I took yesterday but the motor and leadscrew weren’t lit well enough for me to really s… Fun with Numbers - Calculating Motor Load Force > [@Fun with Numbers - Calculating Motor Load Force](https://forums.maslowcnc.com/t/fun-with-numbers-calculating-motor-load-force/1925/3): > > This shouldn’t be a problem for a top beam frame. The only thing I’d really be worried about would be any play in the chain links, and any play in the linkage system. The latter shouldn’t be an issue, although if there is any slop in the system, the top of the machine is where we would notice them the most. I remember seeing posts that mentioned that there could be play in the chain links, which would obviously add up across a longer span of chain. Is this actually an issue or am I worrying ove… Calibration pattern for triangular kinematics > [@Calibration pattern for triangular kinematics](https://forums.maslowcnc.com/t/calibration-pattern-for-triangular-kinematics/879/5): > > I’ll do this and report back. The ‘workarea’ sheet isn’t necessarily exactly centered between the motors, or exactly square to them. Errors in that part of construction would introduce error in the calibration. Better to use the motors to eliminate those construction vagaries by having the motors pay out fixed amounts of chain. It might be hard to be accurate centering a router bit over a snapped location. What we really want are two known points on the vertical line centered between the mo… What is distance of motor mount to worksurface? > [@What is distance of motor mount to worksurface?](https://forums.maslowcnc.com/t/what-is-distance-of-motor-mount-to-worksurface/2943/2): > > @dlang answered that question somewhere in this massive thread (I don’t know where): [https://forums.maslowcnc.com/t/sun-with-face-new-stock-frame-design-sun-with-face/2025](https://forums.maslowcnc.com/t/sun-with-face-new-stock-frame-design-sun-with-face/2025) Motor distance question > [@Motor distance question](https://forums.maslowcnc.com/t/motor-distance-question/1554/5): > > Thanks Bee, Im using .99 and .99. I got things working much better today using tape measure and manually entering measurements. I just have to fix up the top beam now to hang out over the work surface as per dlang. What is correct chain pitch? > [@What is correct chain pitch?](https://forums.maslowcnc.com/t/what-is-correct-chain-pitch/1430/64): > > Thanks to @dlang and @JDogHerman who both took apart their motors (three times for David) so we could count the gear ratio and @blurfl for his expert assistance it looks like the gear ratio is actually 289.776234568:1 resulting in 8113.7345679 steps/revolution. (i was close empirically with 8114). Changing the gear ratio in GC should to this value should solve the issue. You can find the discussion and photos to perform you own teeth counting here: 25 more I got tired. ---
**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:** [May 12, 2022, 12:13am UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/19 "2022-05-12T00:13:32Z")
in the case of the maslow, Bar found a unit he could get from china that worked, min order 1000. this unit seems to be the equivalent and the worm gear on the motor shaft appears to be pressed on. We have no info on the motor separately, it’s all one unit for us. (motor, encoder, and gearbox) David Lang ---
**Author:** ![jonatpridesleap](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/jonatpridesleap/32/6639_2.png) [@jonatpridesleap](https://forums.maslowcnc.com/u/jonatpridesleap)\ **Post date:** [May 12, 2022, 12:44am UTC](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006/20 "2022-05-12T00:44:06Z")
@bar , I am assuiming you have access to this information but can you give us the current total of: 1. Number of individual posts to the forum. 2. Number of individual comments made to all posts in the forum. [Next page](https://forums.maslowcnc.com/t/why-isnt-any-of-this-information-available/18006.md?page=2)