Is there a pinned link the frame calculator somewhere? I see you entered a
frame size in inches and the auto calculation worked. I suspect that I am
using an old link (because the auto calculate is not working and I see no way
to select metric vs english units).Thx!
same link, there is no metric/imperial switch, if you enter frame dimensions
that are small enough, it decides you must mean imperial, but the only thing
that changes is the grid size (goes to 12 instead of 100)
ps http://lang.hm/maslow/maslow4_frame.html doesnāt update the workpiece size at all for me, also not working is the change from feet from mm automatically based on input range. I tried multiple browsers. Am I using an old link?
Belt just snappedā¦
Trying to calibrate for nth time over the last few weeks.
It looks like it must have gotten damaged at some point but if a little knick is enough to break them, I think thereās some troubles ahead,
I believe the belts are way too long out of the box and barely fit on the spools (rub on the outer gear).
They were made longer to accomodate being used on a garage floor aI believe any chance we could get some guidance on how much to cut them by to fit oneās frame?
Steps:
Reboot,
Open Setup panel
Retract All - no isuues
Extend All -no issues
Calibrate -
stopped early calibration failed - fitness 0.4ish
Went to Config in Setup panel
changed Calibration Grid width from 2200 to 2000
Pressed Calibration again
went through a full calibration again
finished but no feed backā¦
Pressed Release Tension
Pressed Apply Tension
=> Maslow started moving in the Y axis and lower left belt snapped.
They were made longer to accomodate being used on a garage floor aI believe any chance we could get some guidance on how much to cut them by to fit oneās frame?
if you have about one full wrap around the spool while attached to the anchors,
you can cut off any more than that.
Ok, thanks Iāll do that when I get it all reassembled.
It might be worth mentioning in the setup instructions, as well as a link to that helpful page that shows the safe cutting area in a diagram.
Do you know where I can I submit this feedback?
This is interesting. My Maslow#1 failed yesterday - sounds like it was getting slack and wound some of the belt in on itself. The crew took it out today and the belt measured over 14ā 4". They noticed that it was the one that had an extra loop or two showing on the outside. I donāt remember them being that different when I assembled it, but didnāt measure any of them and assumed they were all cut to the right length. And I assumed that was 13ā, or 4 meters? This one looks to be 4.25m! @bar looks like another item to look at QC and/or suggest in the assembly guide to measure? While itās apart, Iām going to look at the other ones and also will measure the 4 new ones I got in a second kit Iām starting to assemble.
I am planning to attach a springs in parrellel with each belt end at each anchor that gently pulls the belts back to avoid this. The belts still will operate with hard stop at the anchors but the spring will pull the slack and wont interfere with measurments (if its the right tension)
I took the belt anchor off so I could weigh just the belt and spool since it is glued in. 103g.
I then weighed the new belts that came in the kit I picked up the other day for Seattle Makers.
The new belts( + spool) came in at 103g (one at 104g).
I measured one of the belts. 14ā 6". So all the belts that came in that kit are 14ā 6".
Looking at the rest of my original belts, they all show about 2 wraps outside the gear of the spool. So Iām going to assume they are all 14ā 6", but Iām going to do some more measurements when I further dis-assemble it.
Belt fatigue is totally going to be a thing but at $5 for a replacement is completely reasonable for a belt and spool. I have had to rebuild my machine three times and now that Iāve been through that it is quite honestly a painless experience downtime for the repair was about 40 minutes and with this being an open source and still rapidly evolving experience it is worth the effort and input from us as users. Without us the speed evolution for it would almost come to a standstill. These growing pains are awesome to experience and to have a community that is happy to help continue that growth
So, if your belts are 58g long, here is what they look like when inside the belt arm. I am just putting one back together. Itās easy to think āMore is moreā, but here is a picture of 58g of belt fully wound:
Thereās really no room between the idler shaft and the belt windings.
Here is a photo with about 18" unwound (sorry I havenāt cut it off yet to weigh it properly @jwolter so youāll have to do the inch to g length conversion!).
with about 18" of slack at the end, the wound belt just touches the idler shaft.
When I initially assembled mine, I think I had several feet sticking out so didnāt notice this at all, and I would not have imagined that the 18" and corresponding wraps are beyond the limits of the machine.
I have four arms to assemble tomorrow. I was going to mark the 18" overage so I could cut them off later, but now I plan to reduce them all appropriately prior to assembly.
yes I noticed that too. Even tried using a 24v bench supply to unwind and wind back using tension for a tight wind but still pushes against gear a bit. though I got them all to retract at stock length.
Imagine if you had a belt that was even few inches longer than spec size.
