Are there updated LR4 YZ plates?

In the comments below, it was pointed out that the release day plates didn’t acomodate a wide range of steppers with wiring arrangement different from what’s in the store. @vicious1 indicated that he would get to it, but seems like it may have gotten lost in all the excitement. The files on Printables appear to all be from the release day.

I did search around, if I am missing it, please point me in the right direction :smiley:

Also, if it hasn’t been done yet, I am using shorter motors on the Z with lower pitch screws. So am running into a similar problem there with the wiring. Not only is it wider it’s also a lot further up. If anyone has solutions, please point me towards them.

If your motors are shorter are they also less torque?

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There is always the “self modify” option. But that is not preferred typically from the modification aspect as well as the lower torque aspect, but you can make it work. I used a drill:


I think that is a bit exaggerated. Most steppers do fit.

The reason I have not jumped on this is because I am not sure how many people are really going to use such small nema 17’s.

Exactly.

A larger stronger stepper with the side plug will still fit.

What is the torque rating of your steppers?

The Z steppers are by far the most critical. If you want speed you really need the larger steppers here, The Y steppers can be considerably smaller but the Z is a very direct trade off.

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Smaller steppers on the X fit as is, and the Y fit by just turning the plugs out.

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I have the original motors from you for everything. But I am thinking of using some random ones, paired with threaded rod in place of leadscrews as a test. But there are other builders with a wide variety of motors from steppers online with side plugs who asked me. I am have all the tools to make it work anyway. But since it was discussed, and on the todo list from the original thread, I thought it would be worth asking.

I guess I’ll gather up a range of motors and do some test fits for science. Will be a couple of days, my pelican cases of nemas are at another house. :smiley:

I actually started building my LR4 yesterday and ran into this exact issue. I’ve got full sized NEMA17s (LDO-42STH48-2504AC) and they don’t fit without modification.

I took a chisel to my prints and made them fit.

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Those are the one with the extra metal bump? Can you send a picture of as close to fitting as you can. I think those need the hole opened up the other way.

This is the part that is funky If I open that hole up on both sides to fit every single side plug nema 17 I think it might be a bummer.

Yes, unfortunately, the files haven’t been yet adjusted, probably because Ryan is too busy, I have done some work on the file, maybe not the best but it works if you want I can share them with you, soon I will share some photographs with work I’ve done.


Yes, they are. My OMC 17HE19-2004S are the exact same size and shape and don’t work either.





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That is so close it is annoying. No other steppers have the extra bump.

I am making a note but it will be a while.

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As I said earlier, when it will be ready, let me know, will not be a problem for me to reprint and test them.

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What is the distance from the stepper mounting face to the top of the white plug?

Easily I missed something but it looks to me it’s the steppers that have a plug in on the stepper itself opposed to having the wires integrated in the casing

They do, I need to add some space so those steppers fit the new YZ plates.

I thought i had posted this back in July when I made them in the lounge thread, but I just searched for it and couldn’t find it. It must be in the private group thread, so here they are:

total motor height: ~39.2 mm (not including round offset bearing seal around the shaft. that makes it more, but that shouldn’t matter for this)
image

Motor flat to bottom of plug: 29.5 mm ( that is to the bottom flat of the motor, but due to perspective, it looks too small. It isn’t. it is measuring the bottom of the motor closest to the paper the caliper is laying on)

Plug flange width: 16.6 mm (6 plug so wider opening) offset by ~13 mm from each side for a total motor square side of 42 mm

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Thanks, I hope to mess with the parts soon, provided this change does not make any cascading issues.

I’d imagine it won’t since drilling it out didn’t make much difference. Plus the larger hole will only be visible from the outside and that can be peter plate covered.