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that was it ! The dial was pretty hard to pull out, I had no idea it was supposed to slide off !

thanks a lot, this stopped me from trying something stupid....

How do I remove the X bearing from the saddle of a mini lathe (7x12)

I need the slide to move just a tiny bit further out (toward the operator) and the part highlighted in red stops the slide. I...

maybe by using a hard but elastic material like Delrin or some other polymer, the wear and tight fit can be surpassed ?

Hi,

did you read the article ? here is the link again
Hypocycloid Gear Reduction
clearly this is a DIY job, so it is doable with a small CNC mill. I understand the issue with wear and being...

this Patent US5286236 - Ball-type speed reducer - Google Patents
can get to zero backlash if tight enough

I saw no comments about the hypocycloid reducer link I posted. It seems clearly DIY...

hypocycloid gear reducer. compact, can have almost no backlash, high reduction ratio
Hypocycloid Gear Reduction

I disagree. I use one on my cnc mini mill and it works great.
You have to put a lttle work in it however.
Get one of the recent versions that have corrected many of the shortcomings of the old...

Hey, yes, but I got sidetracked on other projects (like fitting proper homing switches to my mill after I crashed the head...). I am currently waiting on revision 2 of the printed circuit board to...

go to sparkfun.com, they have design files for a lot of their board. Or ask on the forums there, or seeedstudio, or dangerousprototypes.com

meshlab
MeshLab

At this time I just thought about building a probe that is useful for a CNC mill or gantry in order to locate and setup material or parts. It could be used for digitizing, but I think there are...

I made another test base out of MDF. This fixes the hole for the LED, and the slot and hole for the cable. I added blind holes to hold the spring that will press the PCB on the set screws. I received...

I made a test holder plate from MDF, just to verify dimensions and fit. Attached a couple pictures of some of the parts: test MDF PCB holder, Steel body, PCBs
The PCB holder holds the PCB on top of...

I received the printed circuit boards. I got the nice ENIG ones, a bit more expensive than standard. Gold plated, excellent planarity, much better than tinned PCBs. I immediately noticed a mistake I...

I am using 5V, no arcing there. The probe will have 3 wires: ground, 5V power, digital output. It uses a schmitt trigger to avoid switch bounces.

Hi,

Thanks for replying to my post.

I am currently still waiting on the circuit boards to come back from the manufacturer. I received the electronic components...
I will post pictures once the...

Hi all,

I am in the process of prototyping several tools, and realized life would be so much easier if I had a touch probe to find hole centers, accurately setup material, etc. in particular for...

Thanks for the pointers. I will look into those other HSD/HSK spindles, I was not aware they existed. That would be a much better solution of course, and I imagine it would be possible to have the...

not delta, a different geometry that will be more rigid. Effectively, I want to minimize weight, and use a standard high speed spindle. AFAIK those do not have a hollow spindle but just an ER type...

That is very interesting that you say the TTS already existed and is a taiwanese design. Do you know what name is used for that part (outside of tormach...) I have been trying to source some TTS...

like I said
"I have a longer term project of a large parallel kinematics router/milling machine using a high speed spindle. Such an ATC like I describe would allow to fit this system and also all...

I like the tormach system, it seems nice. But 30$ for an endmill holder ? I can get ER25 collet and nut for 5$.

sound like a cool idea, but I am not sure that stacking collet holders would be so great for rigidity and runout, wouldn't it ? I really like your idea though, a mechanism to just slacken the ER32...

I have a longer term project of a large parallel kinematics router/milling machine using a high speed spindle. Such an ATC like I describe would allow to fit this system and also all gantry router...

Hi everybody,

I am thinking of building an automatic tool changer for my Sieg mini-mill. I read the thread about the Hoss ATC, seems sweet. But I do not like the massive bulk of the piston,...

Hi guys,

after messing with the blue version of the board, and getting it to work pretty well after adding the buffer, etc., I found this guy who hacked the newest improved version of the board,...

Hi everybody,

I have the 4 channel version of the board. It was not running well at all so I did the mods described in the post #91. Now it seems much much better. I still have to find the correct...