Did you eventually achieve a 300x500 cutting area?

 

250 sounds pretty good especially with the gain in X. Thanks.

 

Which ones? I just started cutting acrylic for the build, hope it wasn't something I already cut.

 

No problem, I will be sure to find them. My build is just based off yours and so far no bracket or plate is the same as in the files, I have already seen a few things to tweak for max size. Thanks

 

Hi Ariel, excellent build!

I have ordered the bits in your BOM to modify my own K40 but I have a question or two if you don't mind?

Where did you place the laser power supply to be out of the way of the working area?

Also, is it possible to use the existing controller (stock Nano board in my unit), I would like to do one bit at a time if possible.

Cheers!

 

Thanks for the reply - my parts have arrived but I have realised that I will need spacers for the delrin wheels, would you recall which ones you used?

Thanks again.

 

I am looking at doing this to my K40 but I see there is issue with the Y axis.
There are parts missing!
Either you need another idler plate and a rod to go across so one stepper runs the Y axis,
or another motor plate and stepper.
Can anyone post pics of the assembly so this is clearer?

I just don't see how this goes together without one or the other....
Also, is it possible to use the stock Openbuilds n17 motor plate and idler plates?

 

More pictures would be a big help.

 

Hey Ariel. Great build! I am in the middle of doing my build as well. I was wondering if your mirror holder slot accommodated the mirror screws well or if you used really big washers or something to help guide it in the slot? My mirror uses M3 screws and this slot on the mirror holder looks like it is meant for a m5 screw.

Also... have you done a z-axis bed using v-slot? That would be something I may tackle if someone hasn't already.

 

Hi Ariel
I've noticed it's been a while since your last update.. and I'm seriously considering extending my K40.
was the max size then 250 x 500? - just checking...
also have you got any instructions how to build the adjustable bed once the old one is scrapped?
I can see you've fully replaced honeycomb with some metal mesh... (any specific name as I can not find it in my local shops.)

 

any idea how was the 400x700 achieved in the below set?
K40 expansion DIY kit - K40laser.se
should be really same limitation?

 

Quick question .. Any specific reason why you used 2x4 not 2x2?

 

since there very little wight on them and I might have some 2x2 "reused" I might go ahead and try to build it with 2x2 which in theory would give me extra 4inch space each way

 

Could you take some pictures to help some of us who are attempting the build?

 

How much or many of the extrusions did you buy?

 

Hello Ariel, are the small plates that go in the gantry side plates and the laser head holder for the limit switches? no photo shows were they go. If they are, what limit switches fit into the rectangle holes? cant quite figure it out..

Was the new set up quite easy to align?, i did an extended bed on my k40 but was an still is a bugger to get aligned, hence why im going to give yours a go.