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3D Printing - machines owned by members

PeterT

Ultra Member
Premium Member
I don't have a 3D printer but I thought a good application might be a printed 5C collet to replicate what are sold as emergency collets. These are typically brass or machinable metal & quite spendy (hence I don't own any). Looks like someone else had the same idea. Although I'm not seeing the threads, maybe you need to make a donation for that LOL.
https://www.thingiverse.com/thing:3874554
 

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thriller007

Well-Known Member
I don't have a 3D printer but I thought a good application might be a printed 5C collet to replicate what are sold as emergency collets. These are typically brass or machinable metal & quite spendy (hence I don't own any). Looks like someone else had the same idea. Although I'm not seeing the threads, maybe you need to make a donation for that LOL.
https://www.thingiverse.com/thing:3874554
What are “emergency “ collets used for? I don’t have any 5c stuff? Why not just use a regular 5c collet?
 

RobinHood

Ultra Member
Each collet is designed for a very specific (very narrow) clamping range. So if you have an “emergency” collet, you can machine it to fit your odd-ball size.

In the example above, they need to hold a disc (the green part). So they took an “emergency” collet (which is “soft“ and can be machined) and machined a recess in it so they can hold the disc and do further operations on it.
 

PeterT

Ultra Member
Premium Member
Exactly as Rudy says. Maybe sacrificial collet is a better term. Its probably more of a special situation or mini production thing. You also need to pre-insert the 3 spacer pins before machining the custom part profile so that the clamping action will fit properly & turn concentrically. Regular 5C collets might be PITA to modify drilling the pin holes within the slits & the collets are hardened.

But I hadn't realized machinable steel were 'only' $20. I've only seen the more expensive , maybe those were the brass ones ~ $50.
https://www.kbctools.ca/itemdetail/?itemCode=1-519-006
https://www.kbctools.ca/itemdetail/1-519-007

I'm not even sure how 3D plastic types turn/machine. I've heard they are not very tolerant of heat. Have you guys messed around much?
 

PeterT

Ultra Member
Premium Member
Maybe you could do something similar with tight fitting 3DP jaw grips. Picture these attached to your jaws. Clamp the scroll closed, turn the recess profile, now ready to clamp.
 

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PeterT

Ultra Member
Premium Member
Lots of cool ideas on that site. Better stop looking or I'll never get anything done LOL
 

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Janger

(John)
Vendor
Premium Member
I printed 3 after the first one to test fit. 5.5 hours or so for 3. the rail on the chip guard has a bit of angle to it so this does not quite fit perfectly but it seems close enough. it's gripping and steady when clipped on.
 

kevin.decelles

Jack of all trades -- Master of none
Premium Member
Wow, you must have good print speed. What % infill and what pattern?


Sent from my iPhone using Tapatalk
 

Janger

(John)
Vendor
Premium Member
Ah. You get it setup and let it run. Tooling being manufactured while I do other stuff. I can’t sleep with it running so if it’s longer than 16 hours I tend to not start. Split it up into pieces if possible.

I’m printing two more bxa holders and I’ll have enough.
 

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