Z stage v3
This is another concept based on the new information I got from you. Since there is only 5-6 movements a day and you want to keep this as lightweight as possible, the blocks and upper and lower body can be made from aluminum. Please let me know if this concept works better for you so that I can provide you with complete documentation based on this solution. The base plate has 2,2 mm diameter holes for screws which would suggest that it should be attached with M2 screws. However, placing a hexagon socket head screw (DIN 912) will cause a collision. Placing a smaller screw will reduce positioning precision. 1) Is the base plate purchased and comes with the guides? 2) Is the model accurate and if so, which screws should go there? 3) Can you give me the linear motor designation so that I can check everything and know what I'm working with? I found similar guides on Schneeberger's site but none with matching base plate.
Offentlig Præciserings Opslagstavle
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Konkurrenceafholder - 3 måneder siden
Hello everyone - some ideas from our own team to the shortlisted finalists: https://www.dropbox.com/s/gu8kuf8mjd5lmj4/Zv0.33.step?dl=0
The drawings are JUST concepts and share NO ideas coming from the ones submitted on Freelancer platform- 3 måneder siden
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Konkurrenceafholder - 3 måneder siden
Hello Bojan. Do you have any estimations on the off-axis performance of this solution? (error motion on other than Z axis)
Also any estimation on the forces exercised on the linear motor/stage?- 3 måneder siden
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Konkurrenceafholder - 3 måneder siden
Hello Bojan. Your design is the only one not using linear guides for constraining motion. This can be a benefit if it works - but are you sure it will?
- 3 måneder siden
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chongajlo
- 3 måneder siden
For 5-6 movements a day, yes. Eventually, the blocks or upper body will wear out and you will have to manufacture another. Since upper body isn't constrained along Z+ direction it can be removed by hand and lubrication can be applied by hand as well.
If we put steel strips for guides then you will only have to replace only the steel strips. We can use 1.2312 instead of 1.2379. It's also a tool steel but for cold works. It should come prehardened to 35 HRC so it will be easier to manufacture and cheaper. But, 1.2379 will last the longest when hardened to 60+ HRC. It all depends on how long you plan to use the device and whether you plan to increase the number of movements.
The advantage of this solution is that it can be reworked and modified for steel guides later on. Just mill away the protrusions and drill holes for attachment of strips.
So, just let me know which concept you like best and I'll finish the drawings and upload them as one PDF.- 3 måneder siden
