I would have thought the load is measured when the servo motor is being driven. When you stand on the plate you are driving the bronze gear into the worm gear which will never turn. It will just load the back to back bearing on the worm.
My thinking was to see if it showed any kind of load or errors when I put a lot of weight on it in general to kind of represent some tool pressure etc All the cutting is being done with the 4th axis in position and air brake on so I thought if it held me it should be fine The parts quite small and all the mass is close to the centre of rotation so I’m hoping it will be good Time will tell Thanks Marc
@@kinzy_fabrications I am new to cnc. Less years than the number of fingers on 1 hand. But I have a some knowledge with Haas and the Hass rotoary/trunions as I have 1 and have overhauled a tr210. Load is only sensed while the axis is in use. When it is braked there is no load on the axis. But I have added extra info below as I too once had issues with a Haas 4th/5th... In your instance using the 4th and IF you are experiencing mismatches in parts after rotation you will need to inspect 2 things. Step 1. the mesh between the worm and bronze drive gear. With a dial indiator placed at the outer edge on one of the platter slots, air line disconected apply force in rotation to both directions of the platter. If there is movement step 2. Step 2. Remove side covers to acces the back to back bearing end of the worm gear. place dial gauge to the end of the worm and with air line disconected apply the same load with the bar to the plater. If there is movement here you have worn back to back bearings. If there is no movement there is back lash between the worm and bronze gear. At the opposing end of the worm gear there is an eccentric bearing carrier that can be adjusted to eliminate the backlash providing that the bronze gear is not too far worn(worse case). Use step 1 prccedure when making the adjustment to the mesh. To check the brake, unwind the eccentric cam so that you have the most possible back lash. Then apply air brake to the 4th axis fit dial gage as in step 1 and apply load via bar as in step 1. should not move.
Hi Thanks for that insight, much appreciated. I hope I don’t have to get involved in doing that and the part comes out ok but it’s always good to have an insight into how to properly check these things Thanks Marc
Seriously though, I caught up last night in all your videos, really interesting to see the progress, and great to learn about checking different faces to check perpendicularity. Keep at it dude 😎
The British Titan of CNC!
British Twat of cnc more like
I wasn't certain if the 160's could hold up. Thanks for the video.
Yeah they are better/stronger than i was expecting
I would have thought the load is measured when the servo motor is being driven. When you stand on the plate you are driving the bronze gear into the worm gear which will never turn. It will just load the back to back bearing on the worm.
My thinking was to see if it showed any kind of load or errors when I put a lot of weight on it in general to kind of represent some tool pressure etc
All the cutting is being done with the 4th axis in position and air brake on so I thought if it held me it should be fine
The parts quite small and all the mass is close to the centre of rotation so I’m hoping it will be good
Time will tell
Thanks
Marc
@@kinzy_fabrications I am new to cnc. Less years than the number of fingers on 1 hand. But I have a some knowledge with Haas and the Hass rotoary/trunions as I have 1 and have overhauled a tr210.
Load is only sensed while the axis is in use. When it is braked there is no load on the axis. But I have added extra info below as I too once had issues with a Haas 4th/5th...
In your instance using the 4th and IF you are experiencing mismatches in parts after rotation you will need to inspect 2 things.
Step 1. the mesh between the worm and bronze drive gear. With a dial indiator placed at the outer edge on one of the platter slots, air line disconected apply force in rotation to both directions of the platter. If there is movement step 2.
Step 2. Remove side covers to acces the back to back bearing end of the worm gear. place dial gauge to the end of the worm and with air line disconected apply the same load with the bar to the plater. If there is movement here you have worn back to back bearings.
If there is no movement there is back lash between the worm and bronze gear. At the opposing end of the worm gear there is an eccentric bearing carrier that can be adjusted to eliminate the backlash providing that the bronze gear is not too far worn(worse case). Use step 1 prccedure when making the adjustment to the mesh.
To check the brake, unwind the eccentric cam so that you have the most possible back lash. Then apply air brake to the 4th axis fit dial gage as in step 1 and apply load via bar as in step 1. should not move.
Hi
Thanks for that insight, much appreciated.
I hope I don’t have to get involved in doing that and the part comes out ok but it’s always good to have an insight into how to properly check these things
Thanks
Marc
Fat boy test, is my new favourite test
Lol
Seriously though, I caught up last night in all your videos, really interesting to see the progress, and great to learn about checking different faces to check perpendicularity.
Keep at it dude 😎
Cheers, i have certainly learnt alot doing this job, invaluable for the future