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Adding alignment pins in Slicr?  

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Jody
 Jody
(@jody-2)
Eminent Member
Adding alignment pins in Slicr?

I just ran into a future solution where I split a model so it would lay flat on the print bed. After printing, I simply glue the 2 parts together and there is a complete model. Here is where the future solution begins.....

While gluing, the clamps I use are pretty stiff so the parts want to slide around a bit and a couple times have extended my sanding time. I'm sure I'm not the first to encounter this. As a woodworker the solution is to drill out some holes and add some dowels or pins of sort. Anyone have a solution to this? Could this be an additional tool in the Slicr?

Postato : 24/02/2020 9:06 pm
Neophyl
(@neophyl)
Illustrious Member
RE: Adding alignment pins in Slicr?

You could do this already with a modifier or 2. If you add a cylinder modifier you could set it to have no perimeters and no infill. That would make the material not be printed where the cylinders are. The problem will be making sure they are aligned for each part. 

Postato : 24/02/2020 9:35 pm
Jody
 Jody
(@jody-2)
Eminent Member
Topic starter answered:
RE: Adding alignment pins in Slicr?

@neophyl

Thank you. I was close but trying it with a part and not a modifier. The trick is to put the modifier in before you cut it. The modifier then applies to both halves.

Postato : 24/02/2020 10:27 pm
Neophyl
(@neophyl)
Illustrious Member
RE: Adding alignment pins in Slicr?

Good to know and glad you have it working. I normally split my model and add pin holes in blender as part of the design process but it’s all useful info to know. 

Postato : 24/02/2020 10:34 pm
Jody
 Jody
(@jody-2)
Eminent Member
Topic starter answered:
RE: Adding alignment pins in Slicr?

@neophyl

I haven't yet aquired the skills to use blender. I think it could be much more powerful but for now, simple pins using your suggestion...... 👍 👍 

Postato : 24/02/2020 10:36 pm
vintagepc
(@vintagepc)
Utenti
RE: Adding alignment pins in Slicr?

I cheat and don't actually make pins, I just make 1.75 mm holes on both sides and use a piece of filament as my pin 🙂 That way you don't need to do a raised surface if it's your bottom side you're pinning.

Postato : 24/02/2020 11:22 pm
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Lichtjaeger
(@lichtjaeger)
Noble Member
RE: Adding alignment pins in Slicr?

Postato : 25/02/2020 7:58 am
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With_Maltodextrin
(@with_maltodextrin)
Trusted Member
RE: Adding alignment pins in Slicr?
Posted by: @vintagepc

I cheat and don't actually make pins, I just make 1.75 mm holes on both sides and use a piece of filament as my pin 🙂 That way you don't need to do a raised surface if it's your bottom side you're pinning.

Great idea, considering that filament in general should be pretty close to 1.75mm within the accuracy of our printers anyway (usually have to oversize holes by 0.15mm-ish for interference fit parts, for example)

Postato : 25/02/2020 7:47 pm
Neophyl
(@neophyl)
Illustrious Member
RE: Adding alignment pins in Slicr?

I use 2mm steel roll pins when aligning structural parts, usually 2 of them.  I make my holes around 2.1mm and that way I can run a 2mm drill bit into them to make them perfect size as printed holes usually turn out smaller.  

Postato : 25/02/2020 8:20 pm
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