Repetier Host print preview not in sync

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Linnearuk
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Joined: Tue May 08, 2018 5:55 pm

Repetier Host print preview not in sync

Post by Linnearuk » Tue May 08, 2018 7:58 pm

Hi

I've just built a i3 Pro B and everything seems operational

All motors move in correct directions
All endstops work
Homing all axes sends them home

BUT

When I load a project into Repetier despite centring it using the centre button and it appearing to be in the centre of the field it starts printing at Y = 0 and it appears to be trying to print correctly but I lose half the print because the endstop stops it moving further back (as it should)

Any ideas how I fix this lack of synchronisation between the print preview and the printer?

(The X and Z axis appear to be perfectly fine)

Gingko
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Posts: 230
Joined: Tue Apr 24, 2018 10:43 am

Re: Repetier Host print preview not in sync

Post by Gingko » Thu May 10, 2018 12:02 pm

Have you checked the voltage of A4988 of Y axis? Maybe it's a little low, up to 1.0V to have a try.
if no help, swap the A4988 and reburn the firmware.
and you can test the .gco file from attachment.
Attachments
PROB TEST.rar
(23.47 KiB) Downloaded 865 times

Linnearuk
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Joined: Tue May 08, 2018 5:55 pm

Re: Repetier Host print preview not in sync

Post by Linnearuk » Fri May 11, 2018 12:29 am

Tried playing with bed front and setting endstop to Y max last night but to no avail so I'll try this.

Many thanks

Linnearuk
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Joined: Tue May 08, 2018 5:55 pm

Re: Repetier Host print preview not in sync

Post by Linnearuk » Mon May 14, 2018 3:07 pm

The prob test print almost worked but as the y axis tries to live back toward the origin it "judders"

(no issues forward)

Complete novice here but could it be a belt tension issue?

(I don't have a meter to test amps, volts etc., sorry)

Gingko
Site Admin
Posts: 230
Joined: Tue Apr 24, 2018 10:43 am

Re: Repetier Host print preview not in sync

Post by Gingko » Thu May 17, 2018 5:46 pm

Yes, you can check the tightness of Y-axis, loosen it a little to have a try
or swap the driver(A4988) and see if the Y-axis can move normally or not.

kittydurgans
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Re: Repetier Host print preview not in sync

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vivekrathod
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Re: Repetier Host print preview not in sync

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