Set screw size?

**Zortwil** · 2014-10-04 02:11:34

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Topic: Set screw size?

Hi, so I've stripped out the setscrews on the collars for the back rod. What size/length are they? Any suggestions on some nice and strong ones? Thanks.

**IronMan** · 2014-10-04 10:54:35

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Re: Set screw size?

If you have stripped out the threads, new set screws will probably not help you as it is likely the collar threads that are stripped. Bring the collar(s) and screws to your local hardware store, get the next size up screw tap and matching set screws. The hardware store associates will assist you. You can then re-thread the existing holes.

BTW, You don't need to stick with metric, either...eg. if the original set screw is M3, then step up to 6-32.

Also, make sure the new set screws are the hardened steel alloy version. They are usually a black oxide finish.

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**Zortwil** · 2014-10-04 20:58:45

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Re: Set screw size?

IronMan wrote:

If you have stripped out the threads, new set screws will probably not help you as it is likely the collar threads that are stripped. Bring the collar(s) and screws to your local hardware store, get the next size up screw tap and matching set screws. The hardware store associates will assist you. You can then re-thread the existing holes.
BTW, You don't need to stick with metric, either...eg. if the original set screw is M3, then step up to 6-32.
Also, make sure the new set screws are the hardened steel alloy version. They are usually a black oxide finish.

Nah, I've stripped out the hexagonal part, not the threads.

**IronMan** · 2014-10-04 22:02:07

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Re: Set screw size?

Oh...OK! Then They should be M3 thread by about 3 0r 4mm long!

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**Tin Falcon** · 2014-10-04 22:49:56

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Re: Set screw size?

Nah, I've stripped out the hexagonal part, not the threads.

well you can go to a hardware store or home center and try to match the old one.
or measure up the old one.

a chart like this one helps a lothttp://littlemachineshop.com/Reference/ … lSizes.pdf

Not to be smart but you do not mention what printer you have that could be helpful information.
That said my soiidoodle 4 Has 3/8 Z axis guide rods and the collar screw is 1/4 -20 x 3/16 McMaster car part # 91375A532 $7.52 for a pack of 50.
You have to love a machine that is half metric standard and half SAE/ Imperial.
Tin

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**Tin Falcon** · 2014-10-04 22:55:00

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Re: Set screw size?

Oh...OK! Then They should be M3 thread by about 3 0r 4mm long!

That said my soiidoodle 4 Has 3/8 Z axis guide rods and the collar screw is 1/4 -20 x 3/16 McMaster car part # 91375A532 $7.52 for a pack of 50.

Hmmm Maybe you do need to measure
Tin

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**IronMan** · 2014-10-04 23:05:05

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Re: Set screw size?

Tin Falcon wrote:

Oh...OK! Then They should be M3 thread by about 3 0r 4mm long!
That said my soiidoodle 4 Has 3/8 Z axis guide rods and the collar screw is 1/4 -20 x 3/16 McMaster car part # 91375A532 $7.52 for a pack of 50.
Hmmm Maybe you do need to measure
Tin

Definitely bring the old screws!

SD2 - Stock - Enclosure - Heated Bed - Glass Plate - Auto Fire Extinguisher
Ord Bot Hadron - RAMPS 1.4 - Bulldog XL - E3D v6 - 10" x 10" PCB Heated Build w/SSR - Glass Plate
Thanks for All of Your Help!

**Tin Falcon** · 2014-10-04 23:15:14

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Re: Set screw size?

And take a collar along if you can !!!!
Tin

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**IronMan** · 2014-10-04 23:23:49

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Re: Set screw size?

Yeah, my bad...I thought you were talking about the collar screws on the Y axis drive pulleys (the back rod)

SD2 - Stock - Enclosure - Heated Bed - Glass Plate - Auto Fire Extinguisher
Ord Bot Hadron - RAMPS 1.4 - Bulldog XL - E3D v6 - 10" x 10" PCB Heated Build w/SSR - Glass Plate
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**Zortwil** · 2014-10-05 03:52:23

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Re: Set screw size?

IronMan wrote:

Yeah, my bad...I thought you were talking about the collar screws on the Y axis drive pulleys (the back rod)

I am! Not sure where to get them local because haven't been able to find them online on the sites of hardware stores near me, but they're cheap, so I guess it's not a big deal if I order online and get the wrong size.

**Tin Falcon** · 2014-10-05 12:29:51

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Re: Set screw size?

You need to visit the local stores. they are not going to list every screw size on there web page.
the other option is purchasing an assortment kit.
Tin

Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
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**IronMan** · 2014-10-05 13:30:08

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Re: Set screw size?

Tin Falcon wrote:

You need to visit the local stores. they are not going to list every screw size on there web page.
the other option is purchasing an assortment kit.
Tin

ACE Hardware is a good option...they usually have a very wide assortment of Imperial and Metric.

SD2 - Stock - Enclosure - Heated Bed - Glass Plate - Auto Fire Extinguisher
Ord Bot Hadron - RAMPS 1.4 - Bulldog XL - E3D v6 - 10" x 10" PCB Heated Build w/SSR - Glass Plate
Thanks for All of Your Help!

**Tin Falcon** · 2014-10-05 13:44:08

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Re: Set screw size?

Most home centers have something like this in the hardware department.

these can also be purchased under several forms and under several brand names such as thread Checker thread ID and thread detective and probably a few more. So if you get to the store identify the thread and they do not have what you need you at least know what you need and can order on line.
If it is in fact 1/4 20 that is a pretty common size for SAE hardware
Tin

Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
FT5 with titan/ E3D Aero------MP mini select w glass bed
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Set screw size?

Posts: 13

1 Topic by Zortwil 2014-10-04 02:11:34

Topic: Set screw size?

2 Reply by IronMan 2014-10-04 10:54:35

Re: Set screw size?

3 Reply by Zortwil 2014-10-04 20:58:45

Re: Set screw size?

4 Reply by IronMan 2014-10-04 22:02:07

Re: Set screw size?

5 Reply by Tin Falcon 2014-10-04 22:49:56 (edited by Tin Falcon 2014-10-04 22:52:46)

Re: Set screw size?

6 Reply by Tin Falcon 2014-10-04 22:55:00

Re: Set screw size?

7 Reply by IronMan 2014-10-04 23:05:05

Re: Set screw size?

8 Reply by Tin Falcon 2014-10-04 23:15:14

Re: Set screw size?

9 Reply by IronMan 2014-10-04 23:23:49

Re: Set screw size?

10 Reply by Zortwil 2014-10-05 03:52:23

Re: Set screw size?

11 Reply by Tin Falcon 2014-10-05 12:29:51 (edited by Tin Falcon 2014-10-05 12:36:27)

Re: Set screw size?

12 Reply by IronMan 2014-10-05 13:30:08

Re: Set screw size?

13 Reply by Tin Falcon 2014-10-05 13:44:08 (edited by Tin Falcon 2014-10-05 13:46:01)

Re: Set screw size?

Posts: 13