Someone tell me why this is a terrible idea. Trying to get more Z clearance

@RichCournoyer I’m looking for a tailstock to glom together a small modular wood lathe. Looks like you have one of the many available on eBay or ??

Would you recommend it? Most appear to me to be cobbled together from a linear bearing so I was unsure how good they were. Link to source?

Thanks,

RMW

PS - Love your height mod, someday if I get the 47 other mods finished I may tackle that myself.

I don’t know, since I haven’t used it yet…but having said that, this (also) is cluster of miscellaneous parts, and not very heavy duty. It’s came with a live center that ran out 0.020" Yeah, not too good, but I hard turned it true…Wood lathe, maybe, metal lathe, no.

Thanks. Runout isn’t a real concern, but ability to put some torque on the center and not have it slip is.

RMW

I would like the increased z.

Cant you just calibrate your stepper moters?

No. (meaning it wouldn’t help). Maybe this will help you understand:

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So thinking that @RichCournoyer had beaten me I got my measure out…

Now the XL and the standard have different cross straps, but my XL has a 12mm machined baseboard…

I have 4" and allot of change.

On an XL or XXL and even with a standard baseboard you would have over 4.5 inches between the Z and the base plate.

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If you put your baseboard (I’m glad there’s a new name for it) under your end plates, you’d gain that thickness back.

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Unfair test…S3 to S3 would be better…LOL.

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Did you make those black parts in the Shapeoko? love it!

FWIW @luke I for one would be a buyer at a reasonable price. $100-ish and perhaps more.

RMW

The New Z riser plates? Yup. Back in the day I was a Tool and Die maker, and that never leaves. I make MANY tools and machines on the Shapeoko.

That is great. I would like to stalk to you offline. I just ordered a SO3. I am a former AVID CNC machine user / ower. Would you be open to ?

Go to my IG (JPL_Richard) and scroll back about 4 years…From Power Hack Saws, to Watches, to Vises, even using the Shapeoko as a Surface Grinder to finish grind a hardened Tool Maker’s Vise…you name it, I made it…While I hate wood, I did spend a year making a Museum Quality Antique reproduction Newport RI Chippendale Desk…Question, ask away.

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Nice work! Did you do the program in Fusion? I know your using a custom controller, did you need to write your own post processor?

Yes I am using Fusion’s really crappy unwrap 4th axis feature to program the part…wow, is it bad…but it’s what I got (for now)…more bad news…there isn’t a GRBL 4-axis post processor. I found one in GitHub (4 years old) but it doesn’t work…so I am using the Tormach’s post and then hand editing my gcode to work in GRBL. Not a good reliable idea (I know), but after a week of searching, (and wanting to cut chips to test the system), it will work for now until I get with Autodesk and plead with them to help me make a GRBL 4 (or 5) axis post.

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Rich, I don’t know if you will have any luck but, Millright CNC is using GRBL for their 4 axis machine.

Gary

Yeah, but …there are no Fusion posts or a Millright (in the public library) Their website says: (Grbl is what you’d want to select) <— Which is NOT a 4 axis. Do you know where they hide their 4-axis post?

Have you looked at the Avid CNC wrap y - A post or the wrap X- A post for fusion? Since things are slow at NASA I could probably bang out a modded post if I knew what the GRBL board is doing? Is the board the supergrbl board?